To calculate the BTU needed to heat a room:     Length x width x height of the room

The number obtained must be multiplied by (7) if the room is well isolated

and by (10) if the room has no insulation.

Data sheet

Heated area (cubic feet):
15,000 @ 21,000
Hose Included (feet):
20
Btu / hr:
150,000
Operation:
Propane
Hauteur (pouces):
22
Width (inch):
13-1/2
Weight (lbs):
21