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.
Two heaters behind one grille for living rooms and open areas: 4,000 W on 240 V. At 16.7 A it usually needs its own circuit, and it mounts horizontally only.
The in-between size, but its low setting starts at 8,000 BTU/hr, so it can't turn down for a small insulated shack. Most people are better served by the Portable Buddy or the Big Buddy.
Type
240V wall heater
Portable propane
Max heat output
13,650 BTU/h
11,000 BTU/h
Electric rating
4,000 W
n/a
Fuel / power
240V electric
Propane
Indoor use per manual
Yes; horizontal wall mount only
Recreational enclosures + emergency, 1 lb only; no bathroom or bedroom
Thermostat
Yes
n/a
Warranty
2 yr
n/a
Watch out for
Not approved for vertical or ceiling installation; uses its own CTC wall can.
The low-oxygen shutoff does not detect carbon monoxide; run a battery CO alarm listed to UL 2034 wherever the heater runs. Not for a dwelling home in California; not sold to Canada or Massachusetts as indoor-safe.
