Pick two to four models. The best figure in each row is marked, and every number comes from the maker, NEEP or ENERGY STAR. Copy the URL to share a comparison.
Mr. Heater Big Maxx MHU50 50,000 BTU Unit Heater (NG, LP kit included)
Comfort Zone CZ230ER 7,500W Digital Garage Heater with Remote
Photo
Our score
SCORE7.3 / 10
SCORE7.0 / 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.
50% more heat than the CZ220 with a 45-95°F digital thermostat, remote and timer. Its LOW is still 6,250 W, so in a smaller garage it mostly cycles at near full power, and it needs a 40 A circuit.
Type
Vented gas unit heater
240V garage heater
Max heat output
40,000 BTU/h
25,590 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
Indoor, dry locations only
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.
1-year warranty; after 30 days the heater ships to World and Main freight prepaid. Comfort Zone's product page says it needs a 240V plug; the manual says hardwired, and there's no plug in the box.
