Natural Gas Ready (Fuel conversion not permitted) Blue Flame Technology works by convecting heat to warm the air the same way as a central heating system 5, 000-10, 000 BTU's/hr. variable heat ...
For those without a natural gas hookup, the Mr. Heater 30,000 BTU heater is also ... take on a camping trip. Small propane heaters are capable of producing up to 18,000 BTUs of heat output.
Walmart has the Ozark Trail 4,200 BTU Portable Propane Heater for a low $17.02. Free Shipping on orders over $35 or buy online, pick up in store. This is normally $49, so you save $32 off.