Cat sitting in warm house

Forced Air Space Heating with Anesi Gas Heat Pumps

When the weather outside is frightful, you don’t want to worry about keeping your family warm. Anesi gas heat pumps use your natural gas or propane fuel source to provide the warmth you need at a price you can afford.

High Efficiency Forced-Air Space Heating With An Anesi Gas Heat Pump

The Anesi gas heat pump (GHP) offers the latest high-efficiency home heating technology using 30-50% less fuel to provide the same warmth. It will also result in similar reductions to your utility costs and carbon footprint. If you are looking for a way to help the environment, this product immediately reduces your carbon footprint by using less fuel; with about the best (lowest) carbon footprint possible in home heating.  Read more about the research and technology behind the Anesi gas heat pump.

Why Anesi?

  • Consumes up to 50% less gas to provide the same levels of comfort so you save money and reduce carbon emissions.
  •  Uses existing 120V / 15A circuits.
  • All combustion and refrigerant remain outdoors; only warm water enters the home.
  • Lowest cost of delivered heat compared to traditional furnaces or electric heat pumps.
  • Simple installation when replacing an existing furnace system. 
  • Thermally-driven by an ammonia-water gas absorption cycle means no mechanical compressor and fewer moving parts.
  • Operates in temperatures as low as -40°F/C without any backup.   
  • No changes needed for existing ductwork and any existing A/C system.
Family inside warm home

Environmental Benefits of Anesi

The ultra high efficiency Anesi Gas Heat Pump can reduce gas consumption and associated carbon emissions up to 50% beginning the moment it’s installed. The Anesi Gas Heat Pump captures heat from the outdoor air which contributes to its efficiency. Because the heat pump relies on an ammonia-water, gas absorption cycle and NOT a mechanical compressor, it operates with a very low power requirement in temperatures down to -40°F/C. Unlike other heat pumps, the Anesi Gas Heat Pump uses ammonia – a safe and natural refrigerant (R717) with zero global warming potential (GWP) and no PFAS. The Anesi system is designed for use with natural gas or propane. As the carbon composition of this gas fuel is reduced by research and development within the gas utilities, the Anesi system will continue to outperform. Decarbonization is the goal for everyone and through the combined innovation efforts across all industries, sectors, and geographies great strides can be made.

Anesi Gas Heat Pump Forced-Air Space Heating Components

Gas Heat Pump

Air Handling Unit

Indirect Storage Tank

How the Anesi GHP System Works

The Anesi GHP sits outside the home and is connected indoors by a pair of 1-inch copper or PEX pipes. Within these pipes is warm water with food-grade glycol added for freeze protection. This warm water flows through a heat exchanger in the custom Air Handling Unit (AHU) and the modulating blower moves the warm air throughout the home, just the way the old system did.  If you want to heat domestic hot water within the Anesi system, an Indirect Storage Tank (IST) replaces the old gas water heater. 

The home’s existing infrastructure and utilities (gas and electricity) should support the Anesi system without significant modification.  In a furnace replacement situation, the Anesi Air Handling Unit attaches to the existing ductwork. Your installation professional will simply run electricity and gas  to the outdoor GHP unit – no need for electric panel upgrades.  If your previous gas heating system provided adequate comfort, there is no need to change or upgrade the home’s ductwork.

Remote Monitoring

The Anesi GHP can be monitored remotely to provide data on performance and potential service needs, enabling your installation professional and Anesi to work together to resolve any difficulties.  Anticipating problems before they happen and responding proactively is a key feature that makes life easier and lowers costs for both you and your installation professional.

How to Buy Anesi Products

Anesi products are available through HVAC distributors and installation professionals within the USA and Canada.

Contact us for more detailed information about Anesi products and availability.

View Anesi Technical Documents