Looking forward to getting a recoheat when I instal a new stove with a rear flue pipe so I have enough vertical pipe to fit the recoheat in. In the meantime the fan will have to do, with the fans I do like how the speed rotation is an indication of just how hot or maybe cold the wood burner is.
Sounds like a cunning plan: that's certainly a good way to create the space for the Recoheat if you have a bend before the 300mm of vertical rise we need as a minimum above the collar.
Thanks very much! It was really interesting to get proper data on the comparison. We were actually impressed by the fan, but the Recoheat is just a different level, which is great!
The Recoheat I fully grasp as a great improvement to stove efficiency. What I can't grasp is what place background/lounge music has in a technical demonstration/educational video......truly baffling why anyone would think it would be anything but an annoying distraction.
How does the amount of outdoor air you're pulling in with the Recoheat compare to how much outdoor air gets drawn into the room without a Recoheat to replace the air that goes into the stove and up the flue? Assuming the stove doesn't have direct air, are you increasing the overall amount of indoor air change with this or not?
Hi Francis: it's tiny compared to the amount being shifted by the convection flows. A direct air intake or vent is 100mm, compared to our internal 8mm, although of course that's not pumped. But the Recoheat doesn't affect the combustion, so it's not really consequential. Our system works by using the hot jet recovered in the flue to stir the radiant heat from the stove, build the heat in the room and increase the amount of heat from the stove being added to the convection flows.
@@Recoheat I don't think you understood my question. If you use a stove without direct air, you necessarily create extra ventilation to replace the combustion air. My Q is whether the amount of air introduced by a Recoheat is more than that amount, such that it's adding yet more ventilation, or less and hence only displacing ventilation caused by the stove anyway.
@@FrancisCWolfe I've no idea, because of the effect of warming the room. If you look at the physics simulation of the relative heat dispersal from a stove with and without a Recoheat, you can see that the heated jet and its stirring action create a higher bulk temperature that effects a far greater volume of the room. I imagine that would decrease the ventilation because the warm air creates convection flows out of the room in most instances. It's not a straightforward displacement/replacement process therefore. In terms of simply introducing an additional airflow, yes, we are if the pump is outside, but of just 1 litre per second before it is expanded by the heat: so a relatively small amount.
Do you make a double sided version ie pumping both ways with 1 pump utilising a y connection im fitting a double sided stove in place of my inset one end march early April and I think this could be an option of me as I don't want to use my central heating atall
We don't. In fact the relation between the coil size and airflow is fairly crucial, so if you doubled the outlet, you'd need to double the airflow or you wouldn't achieve the turbulence in the flow that we're exploiting. You might need to choose one side over the other therefore, but if the rooms are adjoining, you should achieve an increase in the heat in both.
@@steveroche2524 Apart from the fact that the regulatory and testing requirements to put something inside a flue and make it compliant is tens of thousands, we need the spacing of the coil to induce the vortices that keep it clean and minimise/localise the extraction of heat and its effect on the bulk average temperature of the flue gases running the draw in the flue. It's actually a complex relationship that doesn't afford much variation. So, no! But it's an idea we've considered too because it'd be good in lots of situations.
Great video!, Question for anyone who has one....Can you turn it off after a while when the house warms up and just continue to let the stove burn out as normal or do you need to keep it switched on all the time? thanks
You can switch it off and it doesn't affect the unit at all. If you're doing that for long, it's best to change the high-heat tube going into the back of the unit with 10mm copper piping so that it doesn't dry out. But otherwise, it's fine. Thanks very much for the interest.
@Recoheat excellent I'm thinking of less than 30m maybe 20m so I was going to use plastic push fit externally than on to copper when it re enters the house. Thanks for the reply
@@TellyDan It's very difficult because we can't interrupt the turbulent flow, which is the cause of the hiss. We do have engineers working on it using the physics model they built. It's not clear at the moment if we'll manage it.
1. Add multiple stove fans (3) that move same Recoheat air volume? Retest and report. 2. Evaluate room heat gradient remember you are sitting more than standing or walking about. Retest and document. 3. Try ducting Recoheat around room perimeter using baseboard pvc perforated distribution pipe. Retest and document. 4. Consider a sensitive person too cold drafts. Devise best way to heat and document why?
You'll get that data from the physics simulation video - have you seen that? Clearly shows the effectiveness of the device at transforming the heat profile in the room: ua-cam.com/users/shortsI6TFB8cac04
@Recoheat Thanks for the link. The graphic is hard to interpret sitting down, would like to see a distribution baseboard perferated pvc pipe around the room run as a test. Run the test if you dare show a better heat result...
@@douglaspohl1827 The video is a physics model running in SolidWorks with 1.6m temperature points, so it's far more accurate now as a baseline, objective picture of what's happening. Thanks for all your suggestions and interest 👍👍
Had my new stove running for a week now and the Recoheat is really effective. My fitter did not know what it was but he too was very impressed by it. I still haven't mastered how to move heat to the upstairs. I don't have a terribly big house so a video consisting of tips of how to circulate air to the upstairs, particularly where ones living room is in the middle with doors on either end would be quite useful. Superb product though and makes all the difference. I thought if i'm buying a stove for the first time ever and spending so much, what is another £300 to maximize its efficiency. The air blowing directly out of the Recoheat is akin to the highest setting on a hairdryer - hairdryers cost an arm and a leg in electricity - imagine getting free heat for hours on end - my thermometer went to the maximum really quickly when I placed it in front of the Recoheat heat hole. Proud of myself for researching this product and maximising the efficiency of my woodburner. Pros: 1. Free very hot heat thats pumped into the room - similar heat produced via an electric fan heater would cost astronomical amounts. 2. Efficiency ensuring less wood fuel used. 3. Compact and smart technology. 4. Spreads warmth very well around the room. 5. Pumps out hot air even after the logs have turned to coals. Cons 1. Quite loud sadly (this despite me having my pump installed outside) - much louder than I was led to believe - can drown out the volume of television which is frustrating and will take a lot of getting used to. To circumvent this issue I have purchased a Alexa-enabled wifi plug to plug the Recoheat socket into, meaning I can turn it off via a voicecommand, however, because the heat produced is ridiculously good I rarely turn it off and feel guilty if I do, as it means I am not maximising my stove to its fullest potential or efficiency. 2. Heat does not spread upstairs as I was led to believe. Perhaps I am yet to master the correct technique - perhaps once I master the correct technique the Recoheat will take the chill out of the air from the upstairs rooms, as opposed to warming them up to the same level as the room the stove is in. Would be good to get some tips on this as I can ask Alexa to turn off the Recoheat 3 hours after I go to sleep.
Thanks very much indeed for the detailed review. It sounds as if you've got an air bubble in the pump if it's that loud - give it a shake. It shouldn't be anything like that loud. If you've put it outside, have you coiled excess length of air tube (which is part of the silencer in terms of sound dampening) and is the silencer fitted OK, next to the pump? In terms of getting heat upstairs, you do need to get a convection flow going which means giving the airflow direction. In a double-ended room you might struggle, for sure, because you've got a maximum of 50% airflow in either direction. Normally you would build up the heat in the room with the door closed then open it to create a rush of warm air out and jump-start the convection flow. In lieu of that, it can certainly be difficult: the system can't reverse the convection flows of the house, and you'll have flows towards your windows and doors that will draw more than the stairs if you've got a wide circulating base. Do email any details over and I can see if I can advise further, but it's certainly not possible in all houses, and creating a funnel or flue effect to draw the warmth upstairs is key: our device is not pumping the heat upstairs so has to work with existing air flows, which is will significantly enhance. A couple of customers are using two stoves with two Recoheats in conjunction with an HVAC system to really drive heat upstairs, and that works by pushing air down the house so that the heated air is pushed back up.
@@Recoheat Hi and thank you for your detailed response. The air pump is not loud as the silencer is working and I can't hear it as it is outside anyway. My comment was in relation to the hissing noise of the heat hole which is unavoidable and nothing cannot be done to reduce that noise (free heat can't complain!) Regarding the convection - do you think if I shut the door leading to the kitchen and leave the door to the upstairs open that would help? I have been doing that and will block off any air seeping through the kitchen door to help with this
Yes, closing one door so that the flow can go in a single direction will help, and so will opening a window slightly upstairs to draw the heat up. Once you have a flow, you can close that a bit. It's a bit like managing the flow of air round your stove itself to keep it burning efficiently! @@H.Ali_08
Please see my detailed review below. The advice you kindly provided has worked and the upstairs is getting up to 17-20 degrees (17 on the really cold day that was 0 degrees outside). I have stumbled across a new trick related to this video. I had a stove fan and although I found the Recoheat far superior, I have found that placing the stove fan directly in front of the heat output hole of the Recoheat makes the room really hot quickly, and by using a mere two logs. Pleased to have stumbled across this little trick - not sure if it works for anyone else or whether there is any science behind it but I've definitely noticed a change.
That's fantastic! Very interesting about the fan. Don't understand it properly - two almost opposing possibilities might be that the fan is accelerating air around the Recoheat jet which makes heat transfer more efficient. Or, the fan is interrupting the dispersal of the heat by interrupting the turbulent flow, so making the immediate area hotter. That's definitely something to explore! Thanks very much again for persevering, for your interest and support. 👍👍
@@Recoheat thanks for your response and support. It really is interesting - I am not sure what is happening but it really does make a difference. The fan on its own makes very little difference. The Recoheat on its own makes a huge difference. The fan away from the Recoheat heat output valve makes some difference but bizarrely the fan in front of the Recoheat heat output valve is dispersing heat in an even manner and making the room feel a lot warmer. Your theories are both very plausible. When the stove top is not hot enough to spin the fan blades, the Recoheat's ejected heat turns the fan's blades when placed directly in front. I won't jump to any conclusions and will keep experimenting but thought I'd share my experience. Let me know if you come up with any other interesting theories of why I may be experiencing the effect I have described above. Keep up the wonderful work! I can't recommend the Recoheat to stove owners enough - you are all absolutely bonkers to go so long without one. Stop being pessimists - it isn't too good to be true, as so many things are sadly - it is the real deal.
Really interesting - big question is whether you think it increases the heat going out of the room, rather than just in the room? Thanks as ever for the enthusiasm and support. @@H.Ali_08
@@Recoheat yes, I think it would as the room heats up quicker so no doubt when I test it out properly for a long period of time it will heat the rest of the house sooner. Thanks again.
Minus 1 degrees Celsius outside and I'm in a T-shirt having followed your advice as to how to use Recoheat. I haven't even had to crack open a window. Sealing and draught proofing the doors to the downstairs room and leaving the passage door which leads to the upstairs opened has helped massively! I will be saving lots of money over the winter and won't have to turn on the radiator as much if I've managed to survive -1 degrees celsius outside. This product is truly revolutionary. Thought I'd provide this further feedback qualifying the con I listed above regarding heat not circulating through the house. The walls of my house are poorly insulated and yet the the Recoheat has more than taken the chill out of the air and made the temperatures very comfortable actually - not toasty hot like it is in the living room but that is where I was going wrong - you can't expect upstairs to be the same temperature! The upstairs of my house is at a comfortable temperature notwithstanding it being -1 outside and this all through using a mere 4 logs over the course of 7 hours or so! I buy a lot of gadgets and therefore I am bit of a shopaholic when it comes to online shopping for useful products and gadgets - this is by far my best purchase ever! You will enjoy your stove even more if you know you are increasing it's efficiency. As mentioned in a separate comment above placing a stove fan in front of the Recoheat heat output valve has been a game changer and I got temperatures of 27 degrees (two logs at a time total of 4 logs in a 7 hour window whilst it is 2- -1 outside!) Unreal the customers in the videos are not exaggerating when they sing the Recoheat's praises and I've been struck by the same potion!
Hi, very interesting videos. What has your experience been with using the Recoheat with stoves with convection panels (so the outer temperature is lower than traditional radiant stoves)? Does this effect the vortex you described? Thanks
Plenty of people are using them with such stoves. We even have a couple on mixed log and pellet burners in Scandinavia that work very well. The effect must be different, but presumably the overall heat dispersal is the same, but it would be coming from lower down the stove to improve the dispersal: I assume that's the point. In that case, as long as the jet is being heated to the same degree, which it would be, the entrainment effect will still move that heat, as it extends for more than a metre from the nozzle.
Great video. I am considering getting one. Do you have a decibel test thats been done for the noise of the Reco? In the videos the hissing sound seems quite loud but I know that on cameras sometimes the audio at certain pitches get magnified. Also Im curious house this would compare with an electric fan as the Reco one requires electricity to operate. And does this actually create more usable BTU in the house or is it just a matter of blowing the hot air around better? Thanks
Thanks a lot for the interest! The decibel test is here: ua-cam.com/video/z0t3_nrurZg/v-deo.html As you say, mics are completely messed up by the turbulent airflow. It is difficult to know how intrusive the sound will be in a room though, because it seems to depend most on the acoustics of the room. In a symmetrical room with minimal furniture, solid floor etc, it can be noisy, whereas in other rooms with lots going on, you don't notice it, or it's much less intrusive. The unit is kicking out about 1kw of heat, but the biggest difference it makes is the entrainment and stirring of the heat from the stove. If you look at the animation from the physics engine simulation, you can see the effect - and it's a transformation.
This initially looked like a great thing to do for increasing the efficiency of my stove. But the loud hissing would be quite distracting in the living room. Potentially it could be useful in a kitchen or utility room.
The fan isn't usually placed behind the stove pipe, but I'm sure the test can be done better. It won't result in significant differences in outcome though.
Your device may be good, but honestly you did not give as much attention to the air movement of the stove fan with your tissue, you kept moving your hand aeound. RTFM: stove fans ALWAYS go to the back of the wood/multifuel stove. Even the less expensive ones from Amazon. Yet the “test” with your device, you spent so much time with the airflow (no magic hand jiggling) and no mention of the noise it makes, or what is compares to. Stove fans are silent operation (unless you have a Stirling engine” one. As I live in Cambridgeshire, I will be visiting a place that has one of these devices in operation and see if the cost is justified..and the noise plus the installation and electricity for the pump. Cheers
I just put an electric fan at the back of the stove, it blows huge amount of hot air to the other side of the house, I can feel the breeze 30feet away even at low speed,power cost for the fan is less than 5 dollars per month
Tried the fan option. 80 quid for a Eco fan... complete rubbish. Now use the fan to tell me when fire needs more fuel. Stuck a electric fan by the stove running at 17 watts, directed it to blow over part of stove and makes a massive difference to further in the room. Cost near to nothing to run.
Yep - you're using a powered laminar airflow to achieve that, and it works. We're adding about 1kw of recovered heat into the airflow, then using a turbulent airflow to do the same thing, but the jet we produce also oscillates, so it's just much more effective all round.
If you are going to compare your product against a fan, compare it against a fan that is mains powered at the same wattage as your air pump is consuming. Comparing a mains powered product against a self-powered device is a little misleading.
We're specifically addressing the heat-powered ones because they are what's in the market, and clearly state the power as a differentiator. Electric fans don't figure, though people do use them usually blowing towards the stove, because they're not a distinct stove product and there are too many variables to make a sensible comparison.
This video is to compare two products not explain how the Recoheat works. This video ua-cam.com/video/tknNKch8ED8/v-deo.html explains how the Recoheat itself functions and demonstrates the difference it makes. Thanks for checking it out either way!
Very pleased with our Recoheat! We've been very toasty when we've had the stove going and it does help push warm air into the rest of the house.
Thanks for the shout Steve!
Looking forward to getting a recoheat when I instal a new stove with a rear flue pipe so I have enough vertical pipe to fit the recoheat in.
In the meantime the fan will have to do, with the fans I do like how the speed rotation is an indication of just how hot or maybe cold the wood burner is.
Sounds like a cunning plan: that's certainly a good way to create the space for the Recoheat if you have a bend before the 300mm of vertical rise we need as a minimum above the collar.
Thanks for this test! I've watched almost all your videos and I think this one most clearly shows the benefits of a Recoheat. Bravo! :)
Thanks very much! It was really interesting to get proper data on the comparison. We were actually impressed by the fan, but the Recoheat is just a different level, which is great!
The Recoheat I fully grasp as a great improvement to stove efficiency. What I can't grasp is what place background/lounge music has in a technical demonstration/educational video......truly baffling why anyone would think it would be anything but an annoying distraction.
It's our creative souls yearning for the divine, I think.
I don’t care how fancy your thermometer is. The napkin test is far superior
The candle one was good, too!
How does the amount of outdoor air you're pulling in with the Recoheat compare to how much outdoor air gets drawn into the room without a Recoheat to replace the air that goes into the stove and up the flue? Assuming the stove doesn't have direct air, are you increasing the overall amount of indoor air change with this or not?
Hi Francis: it's tiny compared to the amount being shifted by the convection flows. A direct air intake or vent is 100mm, compared to our internal 8mm, although of course that's not pumped. But the Recoheat doesn't affect the combustion, so it's not really consequential. Our system works by using the hot jet recovered in the flue to stir the radiant heat from the stove, build the heat in the room and increase the amount of heat from the stove being added to the convection flows.
@@Recoheat I don't think you understood my question. If you use a stove without direct air, you necessarily create extra ventilation to replace the combustion air. My Q is whether the amount of air introduced by a Recoheat is more than that amount, such that it's adding yet more ventilation, or less and hence only displacing ventilation caused by the stove anyway.
@@FrancisCWolfe I've no idea, because of the effect of warming the room. If you look at the physics simulation of the relative heat dispersal from a stove with and without a Recoheat, you can see that the heated jet and its stirring action create a higher bulk temperature that effects a far greater volume of the room. I imagine that would decrease the ventilation because the warm air creates convection flows out of the room in most instances. It's not a straightforward displacement/replacement process therefore. In terms of simply introducing an additional airflow, yes, we are if the pump is outside, but of just 1 litre per second before it is expanded by the heat: so a relatively small amount.
Do you make a double sided version ie pumping both ways with 1 pump utilising a y connection im fitting a double sided stove in place of my inset one end march early April and I think this could be an option of me as I don't want to use my central heating atall
We don't. In fact the relation between the coil size and airflow is fairly crucial, so if you doubled the outlet, you'd need to double the airflow or you wouldn't achieve the turbulence in the flow that we're exploiting. You might need to choose one side over the other therefore, but if the rooms are adjoining, you should achieve an increase in the heat in both.
@@Recoheat I'd have to choose the colder bigger room then
@@steveroche2524 Sounds like a plan!
@@Recoheat couldn't 2 coils be intertwined I like to be different and have limited editions lol
@@steveroche2524 Apart from the fact that the regulatory and testing requirements to put something inside a flue and make it compliant is tens of thousands, we need the spacing of the coil to induce the vortices that keep it clean and minimise/localise the extraction of heat and its effect on the bulk average temperature of the flue gases running the draw in the flue. It's actually a complex relationship that doesn't afford much variation. So, no! But it's an idea we've considered too because it'd be good in lots of situations.
Great video!, Question for anyone who has one....Can you turn it off after a while when the house warms up and just continue to let the stove burn out as normal or do you need to keep it switched on all the time? thanks
You can switch it off and it doesn't affect the unit at all. If you're doing that for long, it's best to change the high-heat tube going into the back of the unit with 10mm copper piping so that it doesn't dry out. But otherwise, it's fine. Thanks very much for the interest.
How far away could i locate the pump unit? I'd like to place it in a separate room and pipe it to the coil
We've tested the airline up to 30m but supply 3m standard. If you do need more send an email and we can supply extra!
@Recoheat excellent I'm thinking of less than 30m maybe 20m so I was going to use plastic push fit externally than on to copper when it re enters the house. Thanks for the reply
@@TellyDan That's a long way! But as long as there are no kinks, it should be absolutely fine. Sounds a great project!
@@Recoheat on another matter, has anyone attempted a silencer for the air outlet on the flue?
@@TellyDan It's very difficult because we can't interrupt the turbulent flow, which is the cause of the hiss. We do have engineers working on it using the physics model they built. It's not clear at the moment if we'll manage it.
1. Add multiple stove fans (3) that move same Recoheat air volume? Retest and report.
2. Evaluate room heat gradient remember you are sitting more than standing or walking about. Retest and document.
3. Try ducting Recoheat around room perimeter using baseboard pvc perforated distribution pipe. Retest and document.
4. Consider a sensitive person too cold drafts. Devise best way to heat and document why?
You'll get that data from the physics simulation video - have you seen that? Clearly shows the effectiveness of the device at transforming the heat profile in the room: ua-cam.com/users/shortsI6TFB8cac04
@Recoheat Thanks for the link. The graphic is hard to interpret sitting down, would like to see a distribution baseboard perferated pvc pipe around the room run as a test. Run the test if you dare show a better heat result...
@@douglaspohl1827 The video is a physics model running in SolidWorks with 1.6m temperature points, so it's far more accurate now as a baseline, objective picture of what's happening. Thanks for all your suggestions and interest 👍👍
Had my new stove running for a week now and the Recoheat is really effective. My fitter did not know what it was but he too was very impressed by it. I still haven't mastered how to move heat to the upstairs. I don't have a terribly big house so a video consisting of tips of how to circulate air to the upstairs, particularly where ones living room is in the middle with doors on either end would be quite useful. Superb product though and makes all the difference. I thought if i'm buying a stove for the first time ever and spending so much, what is another £300 to maximize its efficiency. The air blowing directly out of the Recoheat is akin to the highest setting on a hairdryer - hairdryers cost an arm and a leg in electricity - imagine getting free heat for hours on end - my thermometer went to the maximum really quickly when I placed it in front of the Recoheat heat hole. Proud of myself for researching this product and maximising the efficiency of my woodburner.
Pros:
1. Free very hot heat thats pumped into the room - similar heat produced via an electric fan heater would cost astronomical amounts.
2. Efficiency ensuring less wood fuel used.
3. Compact and smart technology.
4. Spreads warmth very well around the room.
5. Pumps out hot air even after the logs have turned to coals.
Cons
1. Quite loud sadly (this despite me having my pump installed outside) - much louder than I was led to believe - can drown out the volume of television which is frustrating and will take a lot of getting used to. To circumvent this issue I have purchased a Alexa-enabled wifi plug to plug the Recoheat socket into, meaning I can turn it off via a voicecommand, however, because the heat produced is ridiculously good I rarely turn it off and feel guilty if I do, as it means I am not maximising my stove to its fullest potential or efficiency.
2. Heat does not spread upstairs as I was led to believe. Perhaps I am yet to master the correct technique - perhaps once I master the correct technique the Recoheat will take the chill out of the air from the upstairs rooms, as opposed to warming them up to the same level as the room the stove is in. Would be good to get some tips on this as I can ask Alexa to turn off the Recoheat 3 hours after I go to sleep.
Thanks very much indeed for the detailed review. It sounds as if you've got an air bubble in the pump if it's that loud - give it a shake. It shouldn't be anything like that loud. If you've put it outside, have you coiled excess length of air tube (which is part of the silencer in terms of sound dampening) and is the silencer fitted OK, next to the pump? In terms of getting heat upstairs, you do need to get a convection flow going which means giving the airflow direction. In a double-ended room you might struggle, for sure, because you've got a maximum of 50% airflow in either direction. Normally you would build up the heat in the room with the door closed then open it to create a rush of warm air out and jump-start the convection flow. In lieu of that, it can certainly be difficult: the system can't reverse the convection flows of the house, and you'll have flows towards your windows and doors that will draw more than the stairs if you've got a wide circulating base. Do email any details over and I can see if I can advise further, but it's certainly not possible in all houses, and creating a funnel or flue effect to draw the warmth upstairs is key: our device is not pumping the heat upstairs so has to work with existing air flows, which is will significantly enhance. A couple of customers are using two stoves with two Recoheats in conjunction with an HVAC system to really drive heat upstairs, and that works by pushing air down the house so that the heated air is pushed back up.
@@Recoheat Hi and thank you for your detailed response. The air pump is not loud as the silencer is working and I can't hear it as it is outside anyway. My comment was in relation to the hissing noise of the heat hole which is unavoidable and nothing cannot be done to reduce that noise (free heat can't complain!)
Regarding the convection - do you think if I shut the door leading to the kitchen and leave the door to the upstairs open that would help? I have been doing that and will block off any air seeping through the kitchen door to help with this
Yes, closing one door so that the flow can go in a single direction will help, and so will opening a window slightly upstairs to draw the heat up. Once you have a flow, you can close that a bit. It's a bit like managing the flow of air round your stove itself to keep it burning efficiently! @@H.Ali_08
@@Recoheat thank you very much for your helpful advice, as always. I'll give that a go!
Good luck with it! Thanks again for your support. @@H.Ali_08
Please see my detailed review below. The advice you kindly provided has worked and the upstairs is getting up to 17-20 degrees (17 on the really cold day that was 0 degrees outside). I have stumbled across a new trick related to this video. I had a stove fan and although I found the Recoheat far superior, I have found that placing the stove fan directly in front of the heat output hole of the Recoheat makes the room really hot quickly, and by using a mere two logs. Pleased to have stumbled across this little trick - not sure if it works for anyone else or whether there is any science behind it but I've definitely noticed a change.
That's fantastic! Very interesting about the fan. Don't understand it properly - two almost opposing possibilities might be that the fan is accelerating air around the Recoheat jet which makes heat transfer more efficient. Or, the fan is interrupting the dispersal of the heat by interrupting the turbulent flow, so making the immediate area hotter. That's definitely something to explore! Thanks very much again for persevering, for your interest and support. 👍👍
@@Recoheat thanks for your response and support. It really is interesting - I am not sure what is happening but it really does make a difference. The fan on its own makes very little difference. The Recoheat on its own makes a huge difference. The fan away from the Recoheat heat output valve makes some difference but bizarrely the fan in front of the Recoheat heat output valve is dispersing heat in an even manner and making the room feel a lot warmer. Your theories are both very plausible. When the stove top is not hot enough to spin the fan blades, the Recoheat's ejected heat turns the fan's blades when placed directly in front. I won't jump to any conclusions and will keep experimenting but thought I'd share my experience. Let me know if you come up with any other interesting theories of why I may be experiencing the effect I have described above. Keep up the wonderful work!
I can't recommend the Recoheat to stove owners enough - you are all absolutely bonkers to go so long without one. Stop being pessimists - it isn't too good to be true, as so many things are sadly - it is the real deal.
Really interesting - big question is whether you think it increases the heat going out of the room, rather than just in the room? Thanks as ever for the enthusiasm and support. @@H.Ali_08
@@Recoheat yes, I think it would as the room heats up quicker so no doubt when I test it out properly for a long period of time it will heat the rest of the house sooner. Thanks again.
Minus 1 degrees Celsius outside and I'm in a T-shirt having followed your advice as to how to use Recoheat. I haven't even had to crack open a window. Sealing and draught proofing the doors to the downstairs room and leaving the passage door which leads to the upstairs opened has helped massively! I will be saving lots of money over the winter and won't have to turn on the radiator as much if I've managed to survive -1 degrees celsius outside. This product is truly revolutionary. Thought I'd provide this further feedback qualifying the con I listed above regarding heat not circulating through the house. The walls of my house are poorly insulated and yet the the Recoheat has more than taken the chill out of the air and made the temperatures very comfortable actually - not toasty hot like it is in the living room but that is where I was going wrong - you can't expect upstairs to be the same temperature! The upstairs of my house is at a comfortable temperature notwithstanding it being -1 outside and this all through using a mere 4 logs over the course of 7 hours or so! I buy a lot of gadgets and therefore I am bit of a shopaholic when it comes to online shopping for useful products and gadgets - this is by far my best purchase ever! You will enjoy your stove even more if you know you are increasing it's efficiency. As mentioned in a separate comment above placing a stove fan in front of the Recoheat heat output valve has been a game changer and I got temperatures of 27 degrees (two logs at a time total of 4 logs in a 7 hour window whilst it is 2- -1 outside!) Unreal the customers in the videos are not exaggerating when they sing the Recoheat's praises and I've been struck by the same potion!
Hi, very interesting videos. What has your experience been with using the Recoheat with stoves with convection panels (so the outer temperature is lower than traditional radiant stoves)? Does this effect the vortex you described? Thanks
Plenty of people are using them with such stoves. We even have a couple on mixed log and pellet burners in Scandinavia that work very well. The effect must be different, but presumably the overall heat dispersal is the same, but it would be coming from lower down the stove to improve the dispersal: I assume that's the point. In that case, as long as the jet is being heated to the same degree, which it would be, the entrainment effect will still move that heat, as it extends for more than a metre from the nozzle.
Great video. I am considering getting one. Do you have a decibel test thats been done for the noise of the Reco? In the videos the hissing sound seems quite loud but I know that on cameras sometimes the audio at certain pitches get magnified. Also Im curious house this would compare with an electric fan as the Reco one requires electricity to operate. And does this actually create more usable BTU in the house or is it just a matter of blowing the hot air around better? Thanks
Thanks a lot for the interest! The decibel test is here: ua-cam.com/video/z0t3_nrurZg/v-deo.html As you say, mics are completely messed up by the turbulent airflow. It is difficult to know how intrusive the sound will be in a room though, because it seems to depend most on the acoustics of the room. In a symmetrical room with minimal furniture, solid floor etc, it can be noisy, whereas in other rooms with lots going on, you don't notice it, or it's much less intrusive. The unit is kicking out about 1kw of heat, but the biggest difference it makes is the entrainment and stirring of the heat from the stove. If you look at the animation from the physics engine simulation, you can see the effect - and it's a transformation.
This initially looked like a great thing to do for increasing the efficiency of my stove. But the loud hissing would be quite distracting in the living room. Potentially it could be useful in a kitchen or utility room.
The fan should be behind pipe but that can’t be done in this because no space behind pipe so demonstration is in correct
The fan isn't usually placed behind the stove pipe, but I'm sure the test can be done better. It won't result in significant differences in outcome though.
Your device may be good, but honestly you did not give as much attention to the air movement of the stove fan with your tissue, you kept moving your hand aeound. RTFM: stove fans ALWAYS go to the back of the wood/multifuel stove. Even the less expensive ones from Amazon.
Yet the “test” with your device, you spent so much time with the airflow (no magic hand jiggling) and no mention of the noise it makes, or what is compares to. Stove fans are silent operation (unless you have a Stirling engine” one.
As I live in Cambridgeshire, I will be visiting a place that has one of these devices in operation and see if the cost is justified..and the noise plus the installation and electricity for the pump.
Cheers
I just put an electric fan at the back of the stove, it blows huge amount of hot air to the other side of the house, I can feel the breeze 30feet away even at low speed,power cost for the fan is less than 5 dollars per month
Great! Glad to hear it's working well for you.
Tried the fan option. 80 quid for a Eco fan... complete rubbish. Now use the fan to tell me when fire needs more fuel. Stuck a electric fan by the stove running at 17 watts, directed it to blow over part of stove and makes a massive difference to further in the room. Cost near to nothing to run.
Yep - you're using a powered laminar airflow to achieve that, and it works. We're adding about 1kw of recovered heat into the airflow, then using a turbulent airflow to do the same thing, but the jet we produce also oscillates, so it's just much more effective all round.
If you are going to compare your product against a fan, compare it against a fan that is mains powered at the same wattage as your air pump is consuming. Comparing a mains powered product against a self-powered device is a little misleading.
We're specifically addressing the heat-powered ones because they are what's in the market, and clearly state the power as a differentiator. Electric fans don't figure, though people do use them usually blowing towards the stove, because they're not a distinct stove product and there are too many variables to make a sensible comparison.
Personally i found the dual fan was far better than single fan and far quiter.
76.5 m2 is not volume, its surface.. m3 is volume
33!
just get a couple of the heat powered fans and you'll save hundreds and not waste electricity.
That would be nice, but alas, simply doesn't happen. Which is kinda the point.
Couldn't watch because of the annoying music. Drives people bonkers.
A wooden table hearth? Sketchy!
You can get more wind from a fart than you can from a stove fan.
Yeh, but you burn your bum standing that close to the stove
Unbearable
Well, more than 600 people so far have one installed and love it.
still not well explained on how it works. need a new presenter to properly explain
This video is to compare two products not explain how the Recoheat works. This video ua-cam.com/video/tknNKch8ED8/v-deo.html explains how the Recoheat itself functions and demonstrates the difference it makes. Thanks for checking it out either way!