Reply To: Air Source Heat Pump systems
I’ve heard that. What classes as enough insulation though? I have cavity walls but not filled…is that enough?
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Air source heat pumps are a fantastic heating method especially for the off-grid gas properties. Make sure your home is well insulated though. Anyone know someone who has installed one in a poorly...
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Hi Diedre, they do look at the SPF too. The formula for caluclating the RHI payments for heat pumps is as follows Yearly heat demand (bottom of EPC) * (1 – 1/SPF for heat pump) This gives you the...
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I think Charlie, it is based on the heat demand from the bottom of your EPC. They basically calculate the renewable part of the energy bill and then pay you based on this. So in a slightly...
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If i had a big enough garden (and a big enough wallet) i would go for the ground-source, but because i don’t it’s ASHP all the way. Am i right in thinking that you only get the RHI on the required...
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For air source heat pumps, is there a big cost difference say if I go for a smaller system vs. a much bigger system?
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Hi Mark, surely based on your comments above the COP for an ASHP changes hugely throughout the year? I agree for a GSHP it would be far more stable!!
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Just to add to the thread about ASHP`s one important factor has not been mentioned, The cop of an ASHP does not fluctuate a great deal throughout the seasonal external air temperature changes but the...
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Welcome to the forums Jack, so this changes throughout the year – air source heat pumps need to work less hard if the temperature of the air outside is higher so are far more efficient, so in the...
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Does anyone know what the top of the range efficiency is for an air source heat pump? Been getting lots of spurious salesmen giving me a whole range of figures from 2.5 to 5 times efficient. Not sure...
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