Assess heating and cooling requirements: Establish the required heating and cooling ability in your household Place. Ammonia is poisonous but has zero GWP. Packaged GAHPs preserve the ammonia circuit outdoors or in mechanical rooms for every code with right ventilation and, exactly where required, leak detection. Abide by community codes https://purethermal.co.uk/media-news/can-gas-absorption-heat-pumps-provide-an-alternative-heat-pump-option-in-2025/