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Last seen: May 16, 2026
You are absolutely correct that the capacity table MUST be consulted. Heat pumps vary in how much, and in which direction, they depart from the 'stic...
Welcome to the forums. You are in an interesting position. By the sound of it the heating system is pretty old. If so and if this were soon to be ...
Electricity retailers offer fixed price deals. By agreeing the purchase price in advance they can manage the risks. Electricity generators probably ...
If I recall correctly the efficiency measure for cooling is different to that for heating, because the energy used by the compressor doesn't add to th...
Thanks both, that all makes perfect sense and seems prima facie like a fairly sensible market mechanism albeit doubtless not perfect (is anything?). ...
I know and yes. The secondary deltaT wont necessarily keep up with the primary deltaT because that will depend on what the pumps are doing, but it ...
Yest exactly that. Many heat pumps (including, so far as I can, tell mine) run on constant pump speed (even if they have a water pump that is capable ...
My thoughts exactly. There appears to be a plan for attack, but no plan at all for the peace that must eventually follow if the attack is to achieve ...
Latest Posts
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RE: Setback savings - fact or fiction?
I agree, but in assessing the 'saving due to setback' i...
By JamesPa , 34 minutes ago
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RE: My Grant R290 9kW Heat Pump Installation
I am following this thread with great interest and than...
By TaffontheTaff , 2 hours ago
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Hi, @david999. I have a Growatt inverter too, so I have...
By Majordennisbloodnok , 4 hours ago
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RE: Sizing an ASHP; Heat loss and kW
You can't measure heat loss with a website. But you ca...
By JamesPa , 17 hours ago
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RE: Estimating true heat loss from twelve months of consumption data
@ian33a — I have a sort of residual interest in this pr...
By cathodeRay , 19 hours ago
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Hi, Thank you. So its a Daikin Altherma 3M...
By Lbart68 , 22 hours ago
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I have a Contactum CU. Would the below RCBO (descriptio...
By Batpred , 23 hours ago
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RE: Samsung gen 7 HP 12kw - auto control issue and water law
@chainreaction Agree with @broadsman , it seems many ...
By Batpred , 23 hours ago
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RE: Anyone concerned about GivEnergy?
@transparent Thank you and appreciate your timely reply...
By SUNNYSKIES , 24 hours ago
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RE: Grant Aeona 3 R32 cycling with weather compensation.
The hot water heating looks normal. The heat transfer ...
By GrahamF , 1 day ago
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
Good questions @temperature_gradient. My understanding ...
By springswood , 1 day ago
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
All going according to plan, mid July we get that 7kW a...
By Batpred , 2 days ago
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Current metrics - DHW target set to 47c
By TaffontheTaff , 2 days ago
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RE: New Solar, Batteries, Air Source and Under Floor Heating advice please
You’re right: UFH works best with high-conductivity fin...
By bafab , 2 days ago
