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SpecMr. Heater Buddy FLEX 11,000 BTU (MH11BFLEX)Cadet Com-Pak Twin CSTC402TW 4,000W 240V Wall Heater
PhotoMr. Heater Buddy FLEX 11,000 BTU (MH11BFLEX)Cadet Com-Pak Twin CSTC402TW 4,000W 240V Wall Heater
Our scoreNot reviewed yetNot reviewed yet
Our takeThe 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.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.
TypePortable propane240V wall heater
Max heat output11,000 BTU/h13,650 BTU/h
Electric ratingn/a4,000 W
Fuel / powerPropane240V electric
Indoor use per manualRecreational enclosures + emergency, 1 lb only; no bathroom or bedroomYes; horizontal wall mount only
Thermostatn/aYes
Warrantyn/a2 yr
Watch out forThe 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.Not approved for vertical or ceiling installation; uses its own CTC wall can.
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