Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.
It checks today's price at every store, compares the alternatives and answers in about a minute.
The Mr. Heater Pro Air 125K is a propane forced-air heater that runs from 75,000 to 125,000 BTU and is rated to heat spaces up to 3,125 sq. ft. A high-output fan pushes warm air across a room, and Quiet Burner Technology keeps the flame noise down compared with basic torpedo heaters. It runs up to 11.5 hours on a single tank and needs a standard 40 lb. propane tank at minimum, connected by the included 10 ft. hose and regulator. It suits garages, workshops, barns and job sites where a permanent heater is not practical; against smaller 60K–80K forced-air units it covers far more space, but it is louder and thirstier than radiant or ceramic shop heaters and needs ventilation.
In stock
Store links may earn us a commission. Price via Klarna.
Lowest price we've seen: $249.99 on Nov 7 at Tractor Supply Co. Tracked across 1 store since Nov 7.
Owners of Mr. Heater forced-air units generally report strong heat output and reliable starts in cold garages and shops. Common complaints center on fan noise, fuel burn at the top setting and the need for a large tank.
The Mr. Heater Pro Air 125K is a portable, freestanding propane forced-air heater for outdoor use. It has a metal housing and a high-output fan that distributes heat efficiently.
Output is variable from 75,000 to 125,000 BTU, and the heater covers spaces up to 3,125 sq. ft. Quiet Burner Technology reduces noise. It runs up to 11.5 hours continuously on a single tank and works with standard 40 lb. propane tanks (minimum).
