Infrared, solar & battery chosen over heat pump on eco house retrofit
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- Опубліковано 10 чер 2024
- Join us as we share Simon’s incredible story of how he turned a run-down 1950s bungalow into an energy-efficient home using innovative technologies, including infrared heating, solar PV, battery, and a Mixergy water heater, together with a sustainable mindset. Simon outlines how his goal was to achieve EnerPhit standard, which focuses more on refurbished projects, working to reduce heat loss and improve insulation and airtightness. Watch as Simon talks through the whole process of achieving EnerPhit standard and why he decided to choose Herschel Infrared for his sustainable heating solution as opposed to a heat pump system.
00:00 Background
00:25 EnerPhit standards
01:21 Difference between EnerPhit and Passive House
02:15 Challenges with heat pumps
04:00 Cost comparison heat pumps vs IR + PV + Battery
05:50 Octopus Energy Night Tariff
06:22 Solar PV and battery storage
07:28 Benefits of infrared heating
10:17 Monitoring energy use
A heat pump-based system was ruled out due to the costs and associated practicalities for his project. Simon has created a very well-insulated home and, for him, an air source heat pump would mean spending a lot of money on something you’re hoping will not be used very much. Instead, Simon allocated his budget to installing infrared heating plus a complete solar panel and battery system, for a similar cost. Find out how Simon uses solar, and overnight tariffs to charge his batteries, to avoid drawing from the grid during the day at all, and how he is looking to maximise the controllability that his infrared heaters offer him.
This fantastic project is a perfect example of how older buildings can be retrofit to improve insulation and minimise energy consumption. Simon has worked with the existing structure of the bungalow (1950ft² internal floor area), instead of knocking it down and starting from scratch, recognising the environmental impact of demolishing and rebuilding.
If you are looking for a sustainable heating solution for your project, please contact our Sales team at sales@herschel-infrared.com who will be happy to talk through the benefits of infrared and how it can work for your project.
Read the case study: www.herschel-infrared.co.uk/c...
#cleanenergy #infraredheating #solarpower #heatpumps #battery #retrofit #renovation #homeenergy #energyefficiency
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Thanks for the very interesting video. My heat pump costs £250 to service each year and the whole system cost £15,000. Fortunately the renewable heat incentive scheme (RHI) covered most of the cost of installation, otherwise I would have gone for radiant heating!
Builder, outside Boston. Our cost for air to air minisplit are $2500 installed for 18000 btu unit. Enough for well insulated 2000 sq-ft home. Radiant floors are not noticeable warmer in a well insulated home. 72f floors to keep room temp 70f.
We replaced our gas boiler with ashp and after a year of fine tuning have a very low cost system using the existing rads and underfloor. It's a 1950 detached house with reasonable insulation and new windows. We looked at infra red panels in some rooms but the efficiency of heat pump worked out much cheaper especially when we shifted our tarriff to octopus Go which gives several hours of very low cost energy. A couple of weeks of disruption vs 20 years of higher costs every year.
Metal walls ceiling and floors and a low level microwave generating appliance creates a lovely inner warmth the microwaves basically warm the person not the air and furnishing.A lovely warm feeling through and through.
Have completed a similar install on my 1970's house. But without adding any more insulation (something I have concerns about) Again using Hershel, who I strongly reccomend. So an install of all IR heating panels and batteries and some solar again cost a similar amount to what an air source heat pump would have cost. The running costs through the past three months (Nov, Dec and Jan) was about 2/3rds of what our previous central heating would have cost. And agree with all the comments made here. A couple of other points as the air isn't being heated directly, the air temp is a little lower than with a wet system, which reduces the likelyhood of condensation and mold growth, and as convection currents are not created it is generally better for people with asthma and similar.
Very interesting and informative video
A very informative video - thank you. We too have a 1950's retro-fit eco bungalow, but have incorporated underfloor heating driven by an air source heat pump, in addition to solar panels and batteries. Our approach and your approach demonstrates the old adage 'there is more than one way to skin a cat'. The one thing I would highlight, in your 'Eco house', is the wood burning stove. All available information suggests that these are majorly negative in terms of particulate pollution. Leaving on a positive, I completely support the approach of retro fitting as opposed to 'knocking and re building'. Rebuilding is both environmental and economic madness, on the macro scale. I agree that Herschel Infrared heaters are great too!
The much quoted figures for PM2.5 emissions from wood burning stoves comes from a much discredited 2015 study by DEFRA which concluded that 38% of PM2.5 was emitted by them. Subsequent larger and more robust studies put the figure much lower with DEFRA recently accepting that the contribution to PM2.5 from wood burning is under 10%. Unfortunately, the MSM loves to keep pushing the 2015 figures.
18 degrees is 18 degrees, still not warm. What's with the neckerchief and wooly jumper, needed personal insulation?
Selective use of radiant is great.
Radiant IR panels don't cool a space though. A Heat Pump doesn't create (much) heat but it moves heat from one space to another and it does it efficiently with a Coefficient of Performance of 2 (200% to 3.5 (350%) depending on ambient temp outside relative to indoor desired temp (Delta T). A Radiant IR panel is COP 1.15 (115%). So for every unit energy you give it you get a bump of 15%. An Air sourced heat pump would get a bump of 100% to 250%
I would think a Heat Pump with some spot IR panels for that nice sun like radiant sensation is comfortable environment. They can be used when the Temp is extremely cold outside wit equivalent COP of heat pumps.
I note that Salford University found that their Air-to-Water heat pump system achieved only a 1.73 CoP when run at an ambient of 4.7C. If this is replicated in installations more widely it shifts the consideration vs IR heating significantly. I am concerned that heat pump manufacturers have rather dragged their heels as regards the adoption of low GWP refrigerants like R290 (despite this being widely used in domestic freezers and fridges). If, say, an R410A refrigerant system leaks it's a significant environmental issue.
When you have insulation that good, probably fan heaters would have worked too.