Established ideal temperatures: Adjust the thermostat to the desired temperatures for heating and cooling in your house. Ammonia is poisonous but has zero GWP. Packaged GAHPs hold the ammonia circuit outdoors or in mechanical rooms per code with good air flow and, in which needed, leak detection. Abide by community https://purethermal.co.uk/media-news/can-gas-absorption-heat-pumps-provide-an-alternative-heat-pump-option-in-2025/