Don't they work upto -15 degrees?
They had managed to get away with radiators rather than underfloor heating, I was surprised that the radiators weren't really that much bigger than normal
niallmac wrote:I was horrified to read of two air source heat pumps being located in a loft.
This is an example of the total lack of understanding that exists as to how heat pumps work efficiently.
The thread started with discussion as to whether a unit should be located in a North or South facing location, which is fair enough. In truth neither make much difference. What does matter, however, is the volume of air that passes through the heat pump, is cooled and released back into the atmosphere. Even a relatively small unit will process hundreds of litres of air every hour, so if tghis is in an enclosed space like a loft, and you can forget the idea of there being adequate ventilation, the area will quickly be cooled and the same air will be recycled and cooled further. Before you know it the loft feels like the inside of a fridge.
Wait a minute, isn't that exactly what you've created!
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