Heat Recovery Systems

1: Maximum Heat Transfer With Minimum Pressure Drop

Therma-Stor “hot plate” heat exchanger provides maximum heat transfer surface area while minimizing refrigerant pressure drop.

2: Makes the Most Hot Water Available

Stratified tank (water near the top is the hottest) makes for quick recovery and efficient heat transfer. And because it operates at a low temperature, a Therma-Stor tank is less prone to scaling, which can reduce efficiency.


The Therma-Stor is a “passive” device — no motors or pumps.

More Comfortable Work Areas

Can reduce “hot kitchen” problems by removing condenser-generated heat from area.

Extends Compressor Life

Compressors don’t need to work as hard in a cooler environment — less compressor and condenser fan run time.

Requires Minimal Space In Your Equipment Area

Compact because it heats and stores water in a single unit.

3: Long Life

The industrial glass-lined water storage tank resists corrosion and has two replaceable anodes for extra protection. Five-year warranty on the heat exchanger and water tank backed by established company.

4: UL Approved

Thoroughly tested and listed by Underwriter’s Laboratories, Inc. Meets all codes required for double-wall heat exchanger. CSA approved units available. 2″ or foam-in-place insulation (R16) meets ASHRE 90 standards.

Fits any cooling system

Therma-Stor units are available in one, two, and six circuit designs. That means you can connect one to six compressors using different refrigerants to a single unit. Therma-Stor units can accommodate compressors from ½ hp to 100 hp or more. Auxiliary resistance backup is available.


By providing additional condensing surface, a Therma-Stor unit improves refrigeration efficiency. It reduces the heat discharged by an air-cooled condenser. Compressor efficiency goes up as temperatures go down. The end result is after cooling and prolonged compressor life. With water-cooled condenser, less cooling water is required. This means double savings–reduced water/sewage charges and reduced water heating costs.