Even if it’s cold outside the house, there’s more than enough heat in the skin air to deliver suitable heating. Since heat pumps simply move heat out and in of the house depending upon the time, they don’t involve fossil fuels which include purely natural fuel to develop heat. This https://purethermal.co.uk/media-news/can-gas-absorption-heat-pumps-provide-an-alternative-heat-pump-option-in-2025/