Mr. Heater 30,000 BTU Propane Blue Flame Vent Free Heater MHVFB30TBLP
Product Review (submitted on November 26, 2013):
Love this heater. I'd purchased an electric quartz heater that didn't work at all. The Blue Flame not only heats entire room, it heats the room quickly, quietly and efficiently.
Now I can enjoy my sun room all year round!