Ilios Water-Source Heat Pump

Ilios Water-Source Heat Pump
Ilios Water-Source Heat Pump
Heating Water Faster than Traditional Boilers

Heating Water Faster than Traditional Boilers

Our Water-Source Heat Pump heats water at more than two times the efficiency of traditional boilers, while providing chilled water as a free by-product. This system provides domestic hot water, while producing free chilled water for air-conditioning.

The Ilios high efficiency heat pump offsets current oil boiler plants, cutting fuel usage to heat water in half. The free chilled water reduces electricity consumed in the existing electric chiller plant. By producing the heat more efficiently with less fuel and offsetting electricity use, the carbon reduction realized will be dramatic. In addition to saving money and cutting your carbon footprint, the Ilios product line comes equipped with an industry leading emission-control system. The patented Tecogen Ultera® system reduces criteria pollutants (in particular, carbon monoxide, nitrogen oxides and hydrocarbons) to near-zero levels, meeting the toughest air quality standards in the country today.

Product Features & Benefits

The Ilios High Efficiency Heat Pump provides relief from high fuel costs while being aligned with the sustainability goals held by the majority of facilities.

The benefit to you

A dramatic reduction in your energy costs while generating additional free waste heat for other useful applications

The benefit to society

A significant reduction in carbon, greenhouse gas emissions, and the harmful pollutants that contribute to smog

  • Twice the efficiency of a conventional boiler
  • 400,000 to 600,000 BTTU/hour of hot water ideal for DHW, swimming pools, space heating and process heat
  • Hot water delivery temperature 100°f to 160°f with near zero criteria pollutants
  • COP of up to 2.2 utilizing a highly efficient heat pump with reclaimed engine waste heat
  • 50% reduction in carbon footprint
  • Ultra-low emissions with near-zero criteria pollutants
  • Create free chilled water while producing hot water
  • Save on electricity, demand charge reduction
  • Compact size, fits through a standard doorway


The most common applications for the Ilios gas heat pumps are facilities with a simultaneous need for heating and cooling including athletic facilities, pools, food and beverage processing plants, laboratories, bottling plants, hotels, and multi-unit residential buildings.

Turnkey Light Load Module

Turnkey Light Solutions

Custom designed with your facility in mind, our factory engineered accessories, load modules and building integration skids are built by our cogeneration experts and shipped to your site pre-assembled – speeding installation and ensuring your cogeneration equipment will operate optimally, right from day 1 and for decades to come.

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Take Advantage of Government Incentives

Every one of our products qualifies for various incentives based on territory and application site type. Our products will also help your facility qualify for LEED green building-type certifications.