How much groundwater does an open-loop system need?
Geothermal heat pumps used in open-loop systems need differing amounts of water depending on the size of the unit and the manufacturer’s specifications. The water requirement of a specific model is usually expressed in gallons per minute (g.p.m.) and is listed in the specifications for that unit. Your water well and heat pump combination should be large enough to supply the water needed by the heat pump in addition to your domestic water requirements. ECONAR heat pumps have the smallest water requirement in the industry, ranging between 1.5 2 gallons per minute at 50o EWT.
An open loop system does not actually “use” any water since it does not consume the water and the water returns to the environment. Combustion appliances that “use” gas or oil actually consume the fuel, never to be available again. Geothermal heat pumps used in open-loop systems need differing amounts of water depending on the size of the unit and the manufacturer’s specifications. The water requirement of a specific model is usually expressed in gallons per minute (g.p.m.) and is listed in the specifications for that unit. Your water well and heat pump combination should be large enough to supply the water needed by the heat pump in addition to your domestic water requirements. S&B Geothermal installed ECONAR heat pumps have the smallest water requirement in the industry.
Geothermal heat pumps used in open-loop systems need differing amounts of water depending on the size of the unit and the manufacturer’s specifications. The water requirement of a specific model is usually expressed in gallons per minute (g.p.m.) and is listed in the specifications for that unit. Your water well and heat pump combination should be large enough to supply the water needed by the heat pump in addition to your domestic water requirements. ECONAR heat pumps have the smallest water requirement in the industry, ranging between 1.5 2 gallons per minute at 50o EWT.
Geothermal heat pumps used in open-loop systems need differing amounts of water depending on the size of the unit and the manufacturer s specifications. The water requirement of a specific model is usually expressed in gallons per minute (g.p.m.) and is listed in the specifications for that unit. Your water well and heat pump combination should be large enough to supply the water needed by the heat pump in addition to your domestic water requirements. ECONAR heat pumps have the smallest water requirement in the industry, ranging between 1.5 2 gallons per minute at 50° EWT.
Geothermal heat pumps used in open-loop systems need differing amounts of water depending on the size of the unit and the manufacturer’s specifications. The water requirement of a specific model is usually expressed in gallons per minute (g.p.m.) and is listed in the specifications for that unit. Your heating contractor should be able to provide this information. Generally, the average system will use ~10 g.p.m. while operating. Your well and pump combination should be large enough to supply the water needed by the heat pump in addition to your domestic water requirements. You will probably need to enlarge your pressure tank or modify your plumbing to supply adequate water to the heat pump.
