Heat Transfer Products Group (HTPG) designs, manufactures and markets energy-efficient commercial and industrial refrigeration equipment & system solutions sold under the trusted premium brands: Russell, Witt, Kramer, and ColdZone.
Join us in celebrating 75 years of innovation. Check out our 75th Anniversary Webpage to view milestones, product brochures, and more from the 1950s to today. See how far we’ve come and our innovations for a brighter future.
QV-Series Condensing Units™
15 to 100 HP Air Cooled Innovative high efficiency design
with easy service access.
Energy-efficient Unit Coolers,
Condensers and Condensing Units.
1/2 through 100 HP
Complete Line of Refrigeration Solutions
Trusted since 1946, Russell manufactures a complete line of commercial refrigeration equipment and solutions—energy-efficient unit coolers, condensing units, condensers, air handlers, coils and packaged systems—to match any refrigeration requirement. Part of the Rheem family of brands.VISIT SITE
Since 1961, Witt has been a leading manufacturer of OEM commercial heat transfer equipment including unit coolers, air-cooled condensers, condensing units, air handlers and heat reclaim equipment. Part of the Rheem family of brands.VISIT SITE
Kramer, founded in 1914, is a leading manufacturer of energy-efficient large refrigeration systems, split systems, condensers and evaporators for the foodservice, food retail warehouse, industrial, and pharmaceutical industries. Kramer’s patented energy-saving technologies are recognized as the most efficient in the industry. Part of the Rheem family of brands.VISIT SITE
ColdZone delivers green refrigeration technologies and is the world’s leading manufacturer of refrigeration equipment—evaporators, condensing units, chillers, fluid coolers, and defrost controls—specifically designed for the foodservice and convenience store industries. Part of the Rheem family of brands.VISIT SITE
HTPG (Heat Transfer Products Group) manufactures and markets commercial and industrial refrigeration products.