@@YagiChanDan Thank you for answering me, my intention is to be able to reproduce this activity in a gas course that we are taking and I would like to be able to propose it to our teacher and I imagine that it would be useful to know the steps that he followed to carry out that test. Thanks for your time.
All boilers have to purge the combustion chamber before the ignition sequence as part of the safety checks. You get the same fan overrun for a few secends on shutdown. The "pre-purge" is partly to allow for small amounts of gas being passed by the gas valve which could lead to explosive levels of gas forming in the boiler. Try googling "LEL in natural gas".
I just had one installed and it's transformed the house to a comfortable warm dwelling with loads of jot water at high pressure after a vokera system boiler that was a poor install given tank pressure and volume. Viessmann vittodens 100w combi 35kw 2020, top piece of kit with 6:1 modulation. It is running very well controlled with Honeywell economy with HR92 smart wifi radiator valves. I have rooms adjusted in timing so the boiler modulated The boiler modulates down after 10 mins. Still too early to gauge fuel consumption but performance indicates it will be good.
@@daveramsay8598 Same here Dave my viessmann vitodens 100 26kw boiler is now into year seven and I’m over the moon with it mine modulates down within about five minutes but then it’s only a small house gas consumption has dropped around 30% compare to the old vaillant system , it’s very quiet very efficient ,simple to clean & service, It was a purchase I didn’t want to make! But to be honest looking back now it has been very economical and beneficial over the years I have had it. Well done viessmann
always wanted to see a burner working thank you for this
That is a thing of beauty! :-)
nice presentation ...thx.
Super from Romania
Good job,from Spain
Amazing
Cool
Could you please make a video explaining how to do the editing you did? It would be for a didactic class, I would be very grateful.
Not much editing done here, just pressed pause on the phone when we switched the lights on and off. This was not a planned video. 👍
@@YagiChanDan Thank you for answering me, my intention is to be able to reproduce this activity in a gas course that we are taking and I would like to be able to propose it to our teacher and I imagine that it would be useful to know the steps that he followed to carry out that test. Thanks for your time.
My Vitodens has the insulation ring which is cracking... is it normal that it cracks after 8 years of use??
yes its normally, that its broken after 8 years
Minor cracking is normal Luke and you won’t need to replace theinsulation pad
Mar interesa de ce se blochează virgulatori la centrala
Why does the fan run flat out before ignition? Or what's the process?
All boilers have to purge the combustion chamber before the ignition sequence as part of the safety checks. You get the same fan overrun for a few secends on shutdown.
The "pre-purge" is partly to allow for small amounts of gas being passed by the gas valve which could lead to explosive levels of gas forming in the boiler.
Try googling "LEL in natural gas".
Dan Robinson cheers , I noticed my boiler fan would run up noisy before the flame icon would show..😉
the worst equipment on the market ... don't buy it, it sucks ....
How so?
I just had one installed and it's transformed the house to a comfortable warm dwelling with loads of jot water at high pressure after a vokera system boiler that was a poor install given tank pressure and volume. Viessmann vittodens 100w combi 35kw 2020, top piece of kit with 6:1 modulation. It is running very well controlled with Honeywell economy with HR92 smart wifi radiator valves. I have rooms adjusted in timing so the boiler modulated
The boiler modulates down after 10 mins. Still too early to gauge fuel consumption but performance indicates it will be good.
@@daveramsay8598 Same here Dave my viessmann vitodens 100 26kw boiler is now into year seven and I’m over the moon with it mine modulates down within about five minutes but then it’s only a small house gas consumption has dropped around 30% compare to the old vaillant system , it’s very quiet very efficient ,simple to clean & service, It was a purchase I didn’t want to make! But to be honest looking back now it has been very economical and beneficial over the years I have had it.
Well done viessmann
@@SalimKhan-gk1fh bullshit
@@hc3730 Bullshit ? what do you mean by bullshit? leave a proper reply and explain to us what you mean