Why Heat Recovery?

1: Maximum Heat Transfer

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

2: Quick Recovery

The “stratified” tank, with the hottest water near the top, allows for quick recovery and efficient heat transfer. This maximizes the availability of the hot water. Therma-Stor tanks also operate at low temperatures, maximizing efficiency and preventing scaling.


Therma-Stor tanks have no motors or pumps, making them extremely easy to operate and maintain. Optional auxiliary electric resistance backup is also available.


Therma-Stor tanks extend the life of cooling units, due to the fact that compressors don’t need to work as hard to remove heat. As a result, compressors and condenser fans don’t need to run as often.


The entire system occupies minimal space; it heats and stores the water in a single unit.

3: Long Life

The industrial glass-lined water storage tank resists corrosion. It also has two replaceable anodes for extra protection. Plus, Therma-Stor tanks come with a full five-year warranty on the heat exchanger and water tank.

4: Certifications and Approvals

Therma-Stor hot water tanks are thoroughly tested and listed by Underwriter’s Laboratories, Inc (UL). They meet all codes required for double-wall vented heat exchangers. CSA approved units are available. Foam-in-place 2″ insulation (R16) meets ASHRAE 90 standards.


Therma-Stor units fit any refrigeration system. They can accommodate compressor systems from ½ hp to 100 hp or more. Multiple units can be piped together to match refrigeration capacity and hot water demand.


By expanding the condensing surface of a cooling system, Therma-Stor tanks improve the efficiency of both air-cooled and water-cooled condensers. A Therma-Stor unit connected to an air-cooled condenser reduces heat, which maximizes compressor efficiency. A water cooled-condenser connected to a Therma-Stor tank requires less cooling water. In either case, this means double savings: reduced water or electricity costs — and free hot water.