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JML
@jml
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Eminent Member
Joined: Jul 18, 2024
Last seen: Jul 25, 2024
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Topics: 1 / Replies: 11
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Reply
RE: New Vaillant 7kW aroTherm ASHP or oil boiler dilemma/decision??

Interestingly, I've been checking this site out after it was posted here. Some of the results others are getting from the same install I'll be getting...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New Vaillant 7kW aroTherm ASHP or oil boiler dilemma/decision??

@allyfish Hi there! Thanks so much for your input and sharing your experience. How do you heat your house now? Twice daily, morning and evenin...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New Vaillant 7kW aroTherm ASHP or oil boiler dilemma/decision??

The CoP of 2.9 is closer to what you would get at -3 and 45 flow temp. Most the time it's nearer 7 degs and your flow temp came down to 35 the CoP wou...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New Vaillant 7kW aroTherm ASHP or oil boiler dilemma/decision??

Also guys, I just wanted to say how helpful and thorough you have been. Its very much appreciated. 😉

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New Vaillant 7kW aroTherm ASHP or oil boiler dilemma/decision??

If you have only used 10350kWh of oil, your heat input required cannot be 23000kWh. Other your boiler is 200% efficient, not 70%. Which makes no sense...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New Vaillant 7kW aroTherm ASHP or oil boiler dilemma/decision??

In all fairness, I never have my hot water on given I have an electric shower. For other sink and kitchen hot water use, given it's a combi I just t...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New Vaillant 7kW aroTherm ASHP or oil boiler dilemma/decision??

Sorry about that this is the data. Regarding oil, if my demand was 14000khw based on above figure I've already shared then : 14000kwh / 0.7% (70% ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New Vaillant 7kW aroTherm ASHP or oil boiler dilemma/decision??

Morning guys! Thanks so much for this. Very interesting. @bontwoody Here are the complete stats given to me. (see attached) Regarding the pessim...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New Vaillant 7kW aroTherm ASHP or oil boiler dilemma/decision??

@bontwoody & @judith It seems you both have a nice system setup! if only i had a decent solar array then this whole ASHP would be a no braine...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New Vaillant 7kW aroTherm ASHP or oil boiler dilemma/decision??

7Kw x 500 for Hot water = 3000Kwh 3500 not 3000

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New Vaillant 7kW aroTherm ASHP or oil boiler dilemma/decision??

Hi guys! Thanks for getting back to me so quickly. @johnmo Aye, thank you. I am not too concerned about the brands but rather thought it an idea j...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
New Vaillant 7kW aroTherm ASHP or oil boiler dilemma/decision??
1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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