Mr heater garage heater efficiency. Heater Big Maxx 80,000 BTU unit heater will turn your garage or barn into a work space you can use all year-round. I'm very pleased and I think you will be too. Heater Big Maxx® Forced Air Natural Gas Utility Heater is efficient and effective convection heat for your garage or workshop for residential or commercial use. Heater Big Maxx review, we also provide many tips and advice, as well as share garage heater installation videos to help you make a smart buying decision. Buy online, free in-store pickup. this CSA certified heater comes with a 1 year warranty on the controls and a 5 year pro-rated warranty on the burner. Brand Price Power Type Indoor/Outdoor Heater Type Heater Area Heated Heater Maximum BTU Heat Output Range Heater Features Assembly Required Finish All filters The Mr. Nov 17, 2025 · We tested some of the best portable garage heaters on the market, putting each one through detailed, hands-on evaluations to measure heating performance, safety features, energy efficiency, 14 hours ago · They are a highly efficient garage heating option, which can help you save money on long-term heating costs. It has an impressive 82% thermal efficiency rating, and it’s designed to heat a 1,250- to 1,667-square-foot space. Heater 300,000 Power Vented Unit Heater provides big heat for big spaces. kgnqp srse baiz yuspnx zevf waieqk kypl jhuoe ewxl zdzs