Mueller Model D and DHS Fre-Heaters recover up to 60 percent of the heat energy rejected from refrigeration and air-conditioning systems. The rejected heat is instead reclaimed to heat potable water for use throughout your facility, saving thousands of dollars a year in energy costs.

We have an extensive line of models that can replace any existing heat recovery unit in the field. This includes crossover models for all obsolete Therma-Stor models in the table below. Our robust stainless-steel construction means Mueller Fre-Heaters will outlast our competitors' equipment.

Thoroughly tested and listed by CSA US and Canada, our Fre-Heaters meet all double-wall heat exchanger construction codes. Canadian Registration Numbers (CRNs) are available for all models in all territories.

These efficient industrial heat recovery systems save energy costs within a small footprint, making them easy to justify and incorporate into your current operation. Consult a Refrigeration Products expert to help you determine the correct model and unit size for your unique heat recovery application.