Review on Natural Gas Heater: Mr. Heater Vent-Free 20,000 BTU Blue Flame - Multi-Size Option by Gary Hall

I bought this heater to replace a 10,000 btu Basic Kozy World heater. The Kozy World was over five years old and the igniter had been replaced twice. It kept shutting off and looked pretty sooted, so I bought this heater as an upgrade, mostly because it put out more btus. It had many more features that I didn't expect: broad temperature range rather than just high and low, thermostat that keeps your chosen temp relatively stable, high heat output, although I haven't used it past half way, so it can kick out the btus! It was easy to install, mostly because I already had the gas line from my old heater. Note: if you're not comfortable working with a gase line, HIRE A PROFESSIONAL! I also have a fan that brings in fresh air as well as a CO2 detector in the room. Safety first!What I didn't like? It's white and obvious, but I painted it with high temp Rustoleum and it looks great. Very pleased after one week, ask me again in a year. ;)In the pic, I have my heater mounted beneath a mantle behind a fire screen. Trust me, the black color makes all the difference as far as aesthetics are concerned.