The company's gas absorption heat pumps (GAHP) are designed to provide cooling and/or heating from a single unit operating on natural or propane gas. Three models are available: GAHP-AR, reversible air source; GAHP-W, water source; and GAHP-A air source. Available heating rates range from 120,400 to 132,400 Btuh and cooling rates range from 54,600 to 57,700 Btuh.