Propane heat also has constructed-in basic safety Attributes: It will not likely ignite when coupled with air unless the source of ignition reaches 940°File. Propane fuel is non-toxic, provides nominal emissions and is not hazardous to soil or water. Air supply heat pumps take up heat from the outside air, https://propaneheatpumps92356.buyoutblog.com/29316872/helping-the-others-realize-the-advantages-of-hydrocarbon-heat-pumps