How Geothermal Works

A WaterFurnace geothermal system operates more efficiently than ordinary heating and air conditioning systems and it can deliver an astounding five units of energy for every one unit of electrical energy used saving you up to 70% for heating, cooling and hot water.

7 series Variable Speed (700A11)

The most efficient WaterFurnace Geothermal System. The best of the best the WaterFurnace 7 Series Variable capacity system delivers comfort and savings you have to experience to believe.

5 Series Forced Air (500A11)

The Flagship Residential Geothermal Furnace. An upgrade to our Envision line that upholds the exceptional comfort and reliability expected from the WaterFurnace name.

3 Series (LDV, LDH)

A great balance of value and performance WaterFurnace 3 Series® units benefit from technology that’s been refined through 30 years of research, engineering advancements, and manufacturing experience—all at a great price point.

Synergy 3D (SDV)

The Synergy3D is a combination 4-1 unit. Perfect for homes where you have radiant infloor heating and forced air heating / cooling with optional domestic hot water.

5 Series Opti Heat (504W11)

Vapor injection technology for higher temperatures and greater efficiencies.

5 Series Water to Water Hydronic (502W12)

The geothermal equivalent to a Boiler.

Envision™ Series NSW Hydronic

Add-on to other unit for high volume hot water users.

Envision™ Series NDW Hydronic

Perfect for radiant floor, spa, pools, snow and ice melt.

5 Series Indoor Split (500R11)

Versatility. Used with remote air handler or gas furnace.

5 Series Outdoor Split (500RO11)

Used with remote air handler or gas furnace.

Envision™ Air Handler

Used with split units to move air to and from the home.