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Last seen: Aug 22, 2026
@hughf Is the second assertion (R290 = Less efficient) actually true? Here are extracts from the spec sheets for Mitsubishi R32 and Vaillant R290,...
I think the problem OP has is that some rooms get too hot while others remain cold. My assumption is that the solar gain doesn't happen every...
My initial reactions are this. I don't know where you are in the country but 14kW is quite high for 240sq m suggesting some insulation might hel...
According to heat geek 10mm is good for 1.1kW at DT 5. The heat geek figures are for copper I think, plastic will be a bit less (bit there again you...
Therein lies the problem. I would ask them questions about the system they insist on before paying for the survey. Or just tell them you won't accep...
I think I would go for the installer that doesn't want to Fit a unit that is far too big (I agree 12kW is well oversized, based on the very limi...
Correct It would be better to connect the radiator return to top right, leave the ASHP return bottom left, then plug the remaining two ports. Th...
Having read your follow up question and the answer from @derek-m , it suggests you follow the route which both @derek-m and I suggested. Replumb buff...
I think where we are at is that a buffer tank can be made to work (but it's by no means guaranteed that it will have been set up properly) but its not...
Maybe not on a mainstream channel! Perhaps 5 minutes on rip-off Britain.
I confess I see the HT heat pump question is a bit of a side issue. The question really is, do 'lt' heat pumps have any advantages ove HT ones. The ...
Interesting. Is the research which led to this sponsored by the fossil fuel industry I wonder? Obviously we all need the facts, but there is a big w...
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Degrees of Separation
Latest Posts
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
Nought for nought is the very best you can do, as soon ...
By JamesPa , 5 hours ago
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RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 6 hours ago
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Britain’s Heat Pump Shitshow is now available to pre-or...
By Mars , 1 day ago
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RE: The good, the bad and the not that great – my heat pump installation
@burtis, I’ve followed this thread pretty much from the...
By Mars , 3 days ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
First time poster here but I can share my experience as...
By SCH , 3 days ago
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RE: Is it the house or the equipment?
...which, I've found out, is pretty much impossible to ...
By Majordennisbloodnok , 4 days ago
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RE: Mitsubishi Ecodan FTC6 settings
The Mitsi remote thermostat should not be plugged into ...
By F1p , 4 days ago
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RE: PV and battery long payback - sense check query
@jamespa I was just commenting on the speed, not sug...
By Batpred , 4 days ago
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Readers here please note that Derril Water and many oth...
By Transparent , 5 days ago
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RE: Advice on Vaillant Sensocomfort
Oops, I meant Sensocomfort (the UI to the controls)
By Batpred , 5 days ago
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RE: Heat Pump Training vs. Real-World Installation
Our instal was very much the opposite. White haired blo...
By Batpred , 5 days ago
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RE: Flushing system, cleaning and inhibitor
While skim reading a manual for our Vaillant HW tank, I...
By Batpred , 5 days ago
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