WHEN YOU ARE REQUIRED TO USE THE UNIFORM HAZARDOUS WASTE. MANIFEST FOR HAZARDOUS WASTE, LIQUID INDUSTRIAL WASTE, AND. POLYCHLORINATED BIPHENYL SHIPMENTS. Federal and state regulations require generators, transporters of hazardous waste, and owners or.
With ground coupled systems water is taken from the ground or surface water (pond, lake, etc.), circulated to the individual heat pumps and the returned to the ground. With refrigerant loop systems a refrigerant such as R-22 is substituted for the water.
Ground-source heat pumps, also called geothermal heat pumps, typically have higher efficiencies than air-source heat pumps. This is because they draw heat from the ground or groundwater which is at a relatively constant temperature all year round below a depth of about 30 feet (9 m).