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Last seen: Aug 3, 2026
If Vaillant produced a list of all of their various variables that would be valuable!
A snapshot of our 7kW Vaillant was at an OAT of 18C producing 1.1kW with 40% of the time on & 60% of time off. The lowest in continuous production...
We get extra heat loss on wet and windy days too, even the best heat loss model, the passive house one (which does allow for solar gain and shading) d...
I too would like to read Vaillant’s explanation since it seems to just be a marketing gimmick on gas boilers and the sensocomfort is to be used on all...
First “no blower test above 1ACH”. If these are done on a building site on a typical design, once this passes the rest of the houses are built the sam...
Somebody above added a throw away line about air leakage through chimneys Here are some measurements (and lots of references) from BRE. Mvhr sy...
Hi Coli, @ccap Are you planning to apply for the BUS £7500? If so you have to follow the MCS rules which mean any fossil fuel heating must be removed ...
The high temp is only used for the legionnaires cycle and the rest of the time it should be in a system designed to be below 45 and mostly ~30C. I can...
The app and sensocomfort align for instantaneous readings but the app gives you the pattern over time and allows you to see heating and dhw independen...
I have a suspicion @cathoderay that when you tuned your oil heating down to reduce your bills that the temperature dropped incredibly when not on. So ...
I can’t answer your questions on the inactive mode since we’re not using at present (using expanded because we still have solar gain) but I can answer...
if course what I should have written was INcompatible within their own range!
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PV and battery long payback - sense check query
Our second car died last week and has been replaced wit...
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RE: Can I start an argument about buffer tanks please? 🙂
The principal argument against buffers is in essence no...
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RE: Indevolt Batteries UK Support & Info Thread
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
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RE: Acond heat pump failed after four years - diagnostic quote £940 plus VAT
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RE: Digest of UK Energy Statistics
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RE: Questions about A2A for heating as well as cooling
@ashp-bobba ah that's good to know, I'll get in contact...
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Hole diameter is small but hole length is also very sma...
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