The ultimate in comfort and performance.

The WaterFurnace 7 Series® provides homeowners the ultimate in comfort and performance and represents our finest products. This line is for those who accept only the best and is built using the latest technologies and highest standards.

The 700A11 signifies groundbreaking innovations on multiple fronts—most notably as the geothermal industry's first variable capacity residential unit and the only unit to surpass both the 41.0 EER and 5.3 COP efficiency barriers. These ratings are vastly greater than ordinary conditioning systems and 30% higher than current two-stage geothermal heat pumps. Our Aurora communicating controls work in unison with variable capacity technology. A variable capacity compressor, variable speed loop pump, and variable speed blower motor combine to offer a level of comfort you have to experience to believe. Best of all, 7 Series units use the stored energy in your yard to provide savings up to 70% on heating, cooling, and hot water.

Download the 7 Series 700A11 product brochure.

Variable Capacity Compressor

A soft start variable capacity compressor with integrated control drive assures the highest level of performance and quieter operation.

Aurora Controls

Aurora controls provide advanced service diagnostics. Setup, configurations, real-time sensor fault, and lockout history can now be closely monitored.


Symphony is a cloud-based comfort platform that lets you access and control your geothermal comfort system from practically anywhere on any internet-enabled device.

Blower Motor

A variable speed ECM motor runs at only the speed needed for maximum efficiency and savings. When Active Dehumidification is enabled, our Aurora Controls optimize the blower to maximize moisture removal.

Coated Air Coil

Our exclusive FormiShield™ Plus coating resists corrosion and increases lifespan. Its patented "11 element" fin technology and large size improves efficiency and dehumidification during cooling.

Aurora Interface Diagnostic Port

WaterFurnace is the first to offer an external communication port, which allows service and diagnosis of our units without ever having to open them.

Advanced Hot Water Generation

With an optional hot water assist, the 7 Series preheats your water and delivers it to your water heater. A sophisticated microprocessor controls and monitors heat pump.


Our exclusive coaxial heat exchanger coating protects against condensation for temperatures below 50°F, extending its life.

Filter and Filter Rack

Pleated MERV 11 filter is standard while an optional pleated MERV 13 is available for improved air quality. Filter rack holds 1" or 2" filters and is field convertible.

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A more efficient way

WaterFurnace geothermal heat pumps use the free renewable energy in your backyard to provide you with consistent, efficient, cost effective home comfort. Keep your family safe and save money while doing it. Make the switch to geothermal today by contacting a local dealer.

Right below your feet is a free and renewable reservoir of solar energy. Our systems tap into that energy to provide heating, cooling, and hot water for your home. And since they don't burn expensive fossil fuels, geothermal heat pumps are the safe and cost effective alternative for your family.

Since fossil fuels are out of the picture, you can save up to 70% on your utility bills! WaterFurnace geothermal heat pumps don't create heat, they simply move it from the ground to your home. That's how they're the most efficient method of home conditioning available today.

WaterFurnace units provide the most comfortable form of heating and cooling available today. They're designed to run more often to keep the temperature in your home consistent — unlike fossil fuel solutions that run at full speed and shut off when that temperature is achieved.

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