Reznor has been manufacturing heating equipment for over 100 years and is the largest manufacturer of commercial heating equipment in the world and is the ONLY manufacturer of commercial heating equipment that also make used oil heaters.

Reznor used oil heaters have a best in the industry 10 year combustion chamber warranty and 1 year total unit warranty.

Reznor’s exclusively, totally self-adjusting used oil heater requires no “user” adjustments. There are no fuel or air regulators to adjust.

Reznor used oil furnaces include an onboard air compressor which eliminates the need for shop air.

Reznor’s advanced engineering design with exclusive “upside down” heat exchanger is over 80%

Reznor heaters are U.L. listed or CSA certified

OCH has installed over 1800 used oil furnaces, and complies with all federal, state and local building and fire codes.  Your shop is too valuable to have your furnace installed incorrectly.

OCH is the only company with the experience and knowledge to be able to offer a complete satisfaction guarantee that our equipment will meet the expectations for which it was purchased or we will remove it and give a full refund.

OCH is the only company to offer a full three year or 3000 hour of operation extended warranty on all non maintenance parts, labor and service call expenses.