Vitocal 100-WA

Designed to fit your needs 

Viessmann’s newest ground source heat pump (GSHP) system, the Vitocal 100-WA, delivers exceptional value and performance as one of the most comprehensive heating and cooling systems on the market. This clean and sustainable full system option reduces reliance on fossil fuels and minimizes environmental impact by using the energy stored in the earth to heat and cool your home.

The Vitocal 100-WA is also capable of producing domestic hot water consistently and efficiently as a standard feature. Engineered with user convenience in mind, GSHP systems are known for their durability and longevity, with the reliability to provide highly efficient comfort for decades.

The Vitocal 100-WA is the ideal amenity for new builds and retrofits alike, offering premium heating and cooling while significantly reducing environmental emissions. Viessmann’s GSHP is available in five sizes, all designed for maximum efficiency and application flexibility with field-reversible controls, and included factory-installed desuperheater for highly efficient domestic hot water production.

Compatible with any loop system and requiring minimal maintenance, this quiet, sustainable solution ensures year-round comfort with a streamlined installation process—making it the ideal fit for your commercial or residential needs.

Renewable energy from the earth for the highest performance 

Geothermal systems can be installed with a variety of loop system configurations. “Closed loops” use recirculated fluid in a series of pipes installed vertically, horizontally, or in a pond. “Open loops” utilize abundant water sources such as wells, lakes, or ponds, and the water is then returned to the environment rather than recirculated in a closed loop.

Highly efficient, highly sustainable

Viessmann's geothermal systems harness the earth's natural, consistent underground temperature to provide efficient and eco-friendly heating and cooling.

Solar energy warms the ground, and approximately 47% of that heat is stored beneath the surface. Just a few feet below the frost line, the temperature remains consistently between 55°F (13°C) and 70°F (21°C) in many climates year-round, creating an ideal and reliable source for sustainable comfort. Making use of this stable, renewable energy source, the Vitocal 100-WA delivers consistent warmth in winter and cooling in summer—all while significantly reducing your carbon footprint and energy bills. 

The factory-installed desuperheater for enhanced domestic hot water production uses water heated with waste heat from air conditioning at no cost in the summer and at substantial savings in the winter. This “free preheat” technology boasts efficiencies up to 3x higher than conventional systems. Ideal for residential, commercial, and large-scale property alike, Viessmann combines cutting-edge technology with sustainability to provide year-round comfort and a faster return on investment.

The difference of design

Viessmann innovation is changing the game when it comes to the installation and maintenance of geothermal systems. Field-reversible controls paired with a reversible cabinet design allows for left, right, or rear return configurations without the need for multiple SKUs for unmatched convenience and ease of installation and service. An integrated LED display makes it easy to know system status and operation at a glance.