Product Features & Benefits


  • 4x more efficient than traditional electric water heaters

  • Allows use of off-peak power

Ultra High Efficiency Reduces Energy Bills: Uses over 70% less electricity


The SANCO2 system uses an inverter-type compressor, DC fan motor and pump. Our design minimizes energy consumption, maximizes water-heating capacity, and allows for faster recovery, resulting in significantly lower operating costs than electric-resistance storage water heaters or conventional heat pump water heaters.


  • Uses CO2 instead of ozone-depleting refrigerants for low global-warming potential

Minimal Impact on Global Warming: Unique Ozone-Friendly CO2 Refrigerant


Heat pump water heaters commonly use synthetic refrigerants, such as R410A or R134A. Although these refrigerants do not deplete the ozone layer, they can have a significant impact on global warming. The CO2 refrigerant uniquely used in the SANCO2 system has an extremely low Global Warming Potential*, and CO2, a natural refrigerant, does not deplete the ozone layer.

*Global Warming Potential (GWP) is a measure of how much a given mass of greenhouse gas is estimated to contribute to global warming. It is a relative scale which compares the gas in question to that of the same mass of carbon dioxide (whose GWP is equal to 1).

© 2020 by ECO₂ Systems LLC.