The Tranquility 27® Series provides you the MOST energy savings of any space conditioning system available. The advanced two-stage compressor and variable speed fan maximize efficiency while EarthPure^® Ozone Safe refrigerant provides unprecedented environmental protection. The system is engineered for quiet, efficient operation and comes in multiple capacities and a variety of configurations.

Featuring the latest in geothermal heat pump technology, the Tranquility 27® Series delivers comfortable, environmentally responsible heating and cooling plus savings on your utility bills.

ClimateMaster is a proud Energy Star Partner


Learn more about Energy Star

Low Utility Bills

• Extra high efficiency (EER 27) produces significant energy savings.
• Powered by electricity instead of fossil fuels.
• Consistent geothermal temperature reduces energy use.
• Optional hot water generator can lower home hot water cost.
• Heat pump installation may qualify you for a tax credit.

Environmental Tranquility

• Energy Star^® qualified.
• Roughly 75% to 80% of heat supplied comes directly from the earth itself and is clean, free and renewable.
• Little or no CO₂ emissions help prevent global warming.
• EarthPure^® Ozone Safe refrigerant has higher efficiencies and zero ozone depletion for unprecedented environmental protection.
• MERV II filter removes up to nine times more dust, lasts three times longer and captures nearly 100% of pollen and spores compared to traditional fiberglass air filters.

Homeowner Satisfaction

• Two-stage technology automatically adjusts itself to provide the optimum, consistent indoor air temperatures regardless of the weather extremes.
• Variable-speed blower motor (standard) adapts to various duct systems for greater flexibility and helps even out hot or cold spots.
• Insulated compressor compartment and interior cabinet, plus no noisy outdoor fans reduce noise.
• Automatic alerts, simplified controls, and easy, lift-out access panels make it easy to use and service.
• E-coated air coil resists corrosion for longer life and improves moisture removal capabilities for additional comfort.
• Cabinets are heavy-gauge galvanized steel and epoxy powder coated for durable and long-lasting finish.
• The drain pan is stainless steel, both corrosion and stain resistant, and slopes to facilitate drainage.
• Geothermal heating and cooling has no flame, no odors, and no danger of fumes.
• Tranquility 27® is engineered for safety with compressor, overflow, and freeze protection, plus a shut-down switch and fault lockout.