MH-320 Waste Oil Heater

The MH-320 320,000 BTU Waste Oil Heater is an efficient heating solution ideal for 6–8 bay garages and commercial shops. Designed to heat up to 8,000 sq. ft. while using less than 2.0 GPH, it delivers powerful performance with minimal fuel consumption.

The durable triple-pass system has dual heat exchangers and dual fans which maximize heat output. the hinged swing‑out doors on both ends make ash removal fast and simple. The MH-320 burns used motor oils, diesel fuels, and standard heating oils, giving you flexible fuel options.

Each unit comes standard with a shop‑air waste oil burner (external air source required), regulated fuel pump assembly, room thermostat, and draft meter, with optional upgrades including an on‑board air compressor or metering pump. By recycling your waste oil for heat, you reduce hauling fees, lower winter heating costs, and keep more profit in your shop.