Review on Mr. Heater 20,000 BTU Radiant Natural Gas Vent-Free Heater - Multi by Gregory Castellanos

The price is right, but plan on spending an additional $1,000-$1,500 for a professional install. I had a plumber tap into our existing gas line and run it across the room to hook this baby up. It warms up the room very quickly, so I'm happy! My workshop will never be an ice box again, nor will I drop $600/mo on electric heating.In fact, this heater warms up my shop, which is roughly 150 sq ft, but also keeps the garage it's attached to warmer as well. Honestly, the only drawback is that we've noticed a slight smell in the air, but it could just be the new material burning off a bit. It bothers my wife more than me.