Last seen: May 25, 2025
I totally agree that K2 are worth it. They don’t look very different to K1 or P+ and are SO much more effective. Moving to K3 is a different step in b...
I have no connection with them whatsoever but why not ask Brendon atfor advice & replacement? You’re in Cumbria and he’s well respected in the ind...
If you go into system view on the app it shows flow temperature and you’ll easily see the DHW heating which ramps to become above your DHW set tempera...
We have a 4kW array and a Sunnyboy inverter (still working very well from original) and FIT. You need to ensure you get an AC coupled inverter into th...
If after reaching its minimum level continuous operation it cycles cleaning 80% on 20% off in an hour gradually reducing its on period to just ~15min...
For my part I was overwhelmed with the total number of questions. So I’ll answer a simple one: if one ufh zone is colder then yes you get it warmer ...
I think a room by room heat loss is a first step but with authority/discretion to include known upgrades without full documentation (one idiot would-...
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...
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Latest Posts
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With R290 heat pumps, which seems to be the direction i...
By JamesPa , 18 minutes ago
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RE: Heat pump installation and BUS Grant timings
EPC no longer necessary Here is the link to the part...
By JamesPa , 3 hours ago
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RE: Getting the best out of a heat pump - is Homely a possible answer?
@benson Ours is ‘resting’ for the summer now (unless we...
By Toodles , 4 hours ago
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RE: Home energy storage & battery register
@jamespa To a certain extent, by exporting to the grid ...
By Toodles , 6 hours ago
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RE: Jokes and fun posts about heat pumps and renewables
@transparent ‘Protein’s extra Luv’.
By Toodles , 13 hours ago
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RE: Forum updates, announcements & issues
@editor Fairy Nuff Mars, I doubt that my ramblings woul...
By Toodles , 1 day ago
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RE: Antifreeze top up for my heat pump - is this a rip off?
@johnmo You are correct, standard Ethylene glycol used ...
By Brendon Uys , 1 day ago
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RE: Confusion about heat pump sizing
We’ve published a deep dive into heat pump sizing, and ...
By Mars , 2 days ago
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We’ve published a deep dive into heat pump sizing, and ...
By Mars , 2 days ago
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RE: Kensa GSHP finally installed - now to start the optimisation process
Just had a quick scan of the manual and should be weath...
By Johnmo , 2 days ago
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RE: Potentially more choice including air to air heat pump grants
Hi all, I agree, the consultation documents are alway...
By madbilly , 2 days ago
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RE: Commencing on an ASHP Installation Process
I think those are pretty much the standard figures that...
By JamesPa , 2 days ago
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RE: Load Compensation and Weather Compensation
I think that maybe what the adia thermal system does, b...
By JamesPa , 2 days ago
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RE: Enabling WiFi: Samsung ASHP on Smart Things App
@old_scientist @profzarkov thanks to you both for the v...
By Grahamh-uk , 2 days ago
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RE: Nibe F2040 periodic warm water increase fails
@tribol here's an official reply from NIBE on your case...
By Mars , 3 days ago
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RE: Vaillant & OVO partner up to offer Heat Pump Plus
@ecodan-efficiency On the other hand, the fact that the...
By Richard24738 , 4 days ago
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RE: How accurate was your heat loss survey?
@scalextrix for our house 1950s detached the air leakag...
By Judith , 4 days ago
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RE: Air Changes per Hour - ACH and the MCS requirement
@matwin If you plan to commission one it might b...
By JamesPa , 4 days ago