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BristolJoe
@bristoljoe
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Active Member
Joined: Nov 3, 2022
Last seen: Feb 24, 2023
Profile Activity
Topics: 1 / Replies: 8
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Reply
RE: Vaillant Arotherm yeild and COP readings

@cathoderay do you have neighbours with similar buildings for their annual heating energy usages? in case the oil figures is some how off?

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant Arotherm yeild and COP readings

@yogabob i agree the manufactures COP calculation are only aproximate, but for Vaillant at least, they don't quote heat delivered they quote the '...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant Arotherm yeild and COP readings

@cathoderay this sound like a nightmare. the heat delivered must be wrong, there are reasons for 20% increase in requirements, weather, losses out ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant Arotherm yeild and COP readings

@cathoderay I agree this is difficult and I have asked those on the open energy monitor forum to compare vaillant reading and their heat meter reading...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant Arotherm yeild and COP readings

@dangermousie I have only the vr700 I think it's called which is the weather comp unit and the main vaillant controller. I don't have the sensocofort ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant Arotherm yeild and COP readings

@dangermousie good idea to have fresh set of eyes on your install by getting Vaillant to do a service. Although my physical install was pretty compete...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Observation about radiators and weather compensation

@cathoderay I found the design calculations from all heat pump installers were huge for us. When checked against our gas usage for the previous year a...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Observation about radiators and weather compensation

What you describe is mentioned in the book Heat Pumps for the Home by John Cantor. Essential reading for a heatpump geek! Page 51 has a thermal ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Vaillant Arotherm yeild and COP readings
3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 38
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