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Oswiu
@oswiu
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Joined: Oct 19, 2022
Last seen: Feb 5, 2024
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Topics: 2 / Replies: 119
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RE: Peering over the ASHP cliff

@grahamb I was saying they may have estimated that from guessing your heating/hot water needs at 19000kWh. If your needs are lower than that, which it...

3 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Peering over the ASHP cliff

@grahamb yes but you use less gas than that. Take your gas usage in kWh and divide it by 3 or 4 to get your heat pump usage. I think a gas hob normall...

3 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Peering over the ASHP cliff

@grahamb that all seems quite reasonable then for the 9kW quote. My pipe run for my monobloc is about 10m there, 10m back. The manual does allow longe...

3 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Antifreeze protection

@cathoderay yes that's right it was as if I had a power cut. This was the installation of my heat pump, so when the plumbing guys finished the pipewor...

3 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Peering over the ASHP cliff

I get a similar, albeit slightly higher, figure when I do it and we have very similar sized houses so it's a good comparison. My heat loss calcs came ...

3 years ago
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Air Source Heat Pumps (ASHPs)
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RE: The Mystery of the Weather Compensation Curve

@cathoderay I did say a good weather comp curve can be more comfortable. If your house is cold then the curve isn't tuned properly. Either that or you...

3 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Peering over the ASHP cliff

Heat pumps cost more to run when it's very cold. Somehow mine managed to stay on par with gas, but many cost more than gas when it's very cold. This s...

3 years ago
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Air Source Heat Pumps (ASHPs)
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RE: The Mystery of the Weather Compensation Curve

Off the top of my head I can think of a few reasons Heat pumps are not as powerful as the boilers they replace so simply can't just slam on at the...

3 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Antifreeze protection

@cathoderay yes I suppose you are right that you have to refill. I think if the outside is isolated from the inside this shouldn't be too difficult, b...

3 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Ecodan with UFH flow temperature consuming 130kWh per day

@abefroman a couple of things stand out to me. Firstly with 17kW of heat pumps it's clear your installer thought you had a large heat loss. That is ve...

3 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Antifreeze protection

I have anti freeze valves. Due to complications of my install this past week in the cold snap, my anti freeze valves kicked into action and drained my...

3 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Mitsubishi Ecodan not good enough ?

What did they say about them on the show? Did you experience the same problems as discussed on the programme? With regards to your issues, there is...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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