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| Spec | Mr. Heater Big Maxx MHU50 50,000 BTU Unit Heater (NG, LP kit included) | Dr. Infrared Heater DR-975 7,500W Hardwired Garage Heater |
|---|---|---|
| Photo |  |  |
| Our score | SCORE7.3 / 10 | SCORE6.6 / 10 |
| Our take | The garage heater we'd hang where there's gas: 40,000 BTU/h of vented, thermostat-controlled heat for a two- or three-car garage. Budget for a professional gas, vent and electrical install, and expect to clean the flame sensor. | The 7,500 W ceiling heater to buy for its 4,700 W low setting, which suits mild days better than the CZ230ER's 6,250 W low. It needs a licensed electrician, a 40 A circuit and 8 AWG copper, and its remote thermostat stops at 50°F. |
| Type | Vented gas unit heater | 240V garage heater |
| Max heat output | 40,000 BTU/h | 25,597 BTU/h |
| Electric rating | n/a | 7,500 W |
| Fuel / power | Natural gas or propane | 240V electric |
| Indoor use per manual | Vented; qualified installer; 8 ft above a garage floor | Not for residential or household use |
| Thermostat | Yes | Yes |
| Warranty | 3 yrbest | 1 yr |
| Watch out for | Installation and service by a qualified installer, service agency or the gas supplier, per the manual. Thermostat sold separately; propane needs an 11-14 in WC regulator (not supplied). Never in spaces with gasoline, solvents, paint thinner or airborne dust. | Not for areas where gasoline, paint or flammable vapors and liquids are used or stored. Not a residential or household heater, per its manual. HIGH/LOW can only be changed while the heater is heating. |
| More | Model detailsOur full reviewView on Amazon → | Model detailsOur full reviewView on Amazon → |