Frequently Asked Questions

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Commercial Water Heating

What type of customer is the system designed to serve?

Large users of hot water, including lodging, healthcare, multi-family dwellings, institutions, food processing and service, laundries, cold weather car washes and swimming pool heating.

What is the operating history of EarthLinked water heating?

EarthLinked Technologies began the development of the system in the 1970s. Independent verification of its unequalled efficiency was obtained at the Florida Solar Energy Center in 1984 and the U.S. EPA confirmed the same 75% savings in the commercial water heating application in 2006.

How much water can the system heat in each day?

The system can deliver 2,500 gallons per day at 120°F.

How can I control the water temperature?

The EarthLinked system delivers pre-heated water to your standard water heater where it is stored and the temperature can be raised. A standard aquastat in that tank maintains temperature control.

How much can it save in operating costs?

Please click to see the Cost Comparison page on this website.

What about greenhouse gas emissions?

Field testing by U.S. EPA verified up to 75% energy savings and avoidance of the emission of up to 7,000 pounds of CO2 and 50 pounds of NOx per ton of heat pump capacity each year as compared to electric resistance water heating (up to 42,000 pounds of CO2 and 300 pounds of NOx each year by a 6-ton system).

How much space do the earth loops require?

Diagonal earth loops disturb only a radius of approximately six feet during installation where the earth loops converge.

How much space does the heat pump unit require inside the building?

The heat pump and refrigerant-to-water heat exchanger are in a single small unit that is 17”D x 24”W x 26”H.

Does it need to circulate air?

No. The compressor unit does not circulate outside air to deliver heat to the water heater tank.

Is it noisy?

No. Without the need to circulate air, the unit is fully enclosed and insulated. The only moving part is the standard heat pump compressor that is inside the enclosed unit.

What about reliability?

Because the system delivers pre-heated water to a standard water heater, either electric or gas, it increases the reliability of the water heating system. The existing water heater is no longer subjected to a wide range of temperatures and serves only to “top off” the temperature and store the water, thus it operates for a limited time and is more reliable.

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