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Last seen: Aug 16, 2026
@eliuccio some people fan assisted radiators to good effect to get extra output. They are expensive but there are diy options which aren’t.
@bami I think a lot of people use heatpunk as a heat loss calculator. To me 6kW would sound about right but this is an area where installers regularly...
@bami yes. 8kw = 8000w I would change the areas in the heat loss calc to the correct ones and recalculate the heat loss. It doesn’t mean that it ...
@bami I think if the heat loss documentation matches a 8kW heat pump then you have a very good case as "not fit for purpose" Alternatively if that i...
@bami thats helpull. Did you also get the heat pump spec and heat loss calculation?
@bami Is there some reason the room would have a lot of moisture in it overnight? If not that would kind of suggest the double glazing panel has blown...
@bami I have a large bay in my lounge and whilst the glass is cool, I dont notice a massive heat loss when the curtains are drawn. It might be worth c...
@jamespa Similarly I cant make the case for another 5kWh expansion. However its difficult to quantify how much a small battery saves when using solar ...
@bami My feeling is that the picture shows an expansion tank not a buffer, so that is good. I take it you were not given the specs and system diagram ...
@bami All good advice so far. I have a Samsung so might be able to help specifically with it. Do you know if you have a buffer tank installed? I not...
@jamespa You are right James that the Vaillant is a more sophisticated beast, but it does come at a significantly higher price point. I would indeed l...
Im just going to jump in here and defend the Samsungs control system. Whilst it is basic and may lack some of the more sophisticated options like a di...
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Degrees of Separation
Latest Posts
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RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 5 minutes ago
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RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
By JamesPa , 14 minutes ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 1 hour ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
I think this calculation goes the other way. 3.54kW ga...
By JamesPa , 1 hour ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 18 hours ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 18 hours ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 1 day ago
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RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 2 days ago
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RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 3 days ago
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RE: Who's your electricity provider and what's your tariff?
@chandykris Swings and Roundabouts, you win some…. ...
By Toodles , 3 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 3 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 3 days 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 , 4 days ago
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