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Air-to air or air-to-water: which air source heat pump is best?

Posted by Graham Hazell on 13 February 2014 at 1:26 pm

Air-to air or air-to-water: which air source heat pump is best?

Air source heat pumps, which have been used extensively for many decades, are an increasingly popular form of heating. They take the heat from ambient, external air. There are two main choices for emitting the heat from an air source heat pump: via air - warm air is blown within …

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How is the seasonal performance factor of my heat pump calculated?

Posted by Graham Hazell on 26 September 2013 at 9:09 am

How is the seasonal performance factor of my heat pump calculated?

Q: I am still unclear how the seasonal performance factor (SPF) of my heat pump is calculated for the purposes of making tariff payments under forthcoming domestic renewable heat incentive (RHI). Is it simply based on the manufacturers' claims or is there some way of calculating it from real …

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7 questions to ask a heat pump installer before you buy

Posted by Graham Hazell on 19 July 2013 at 11:52 am

7 questions to ask a heat pump installer before you buy

With the details of the domestic renewable heat incentive now published, and renewable heat premium payments still available to help with the upfront cost, now is a good time to install renewable heat. But make sure you choose a good installer. Here are seven questions to help you choose a he…

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Which is the the best heat pump?

Posted by Graham Hazell on 30 May 2013 at 11:47 am

Which is the the best heat pump?

“Which is the best heat pump, in your view?” is the question I’m most frequently asked by callers to the Heat Pump Association's information desk. I usually turn the question back and ask them, in their view, which is the best car. Straight away they ask “what do you w…

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