Amazon.com: Martin Direct Vent Propane Wall Furnace Heater for Indoor Homes or Offices with Built-in Thermostat and Glass Panel, 20,000 BTU : Tools & Home Improvement
Avoid Unvented Gas Heaters | BuildingGreen
Bluegrass Living Propane Gas Vent Free Blue Flame Gas Space Heater With Blower and Base Feet - 30,000 BTU, T-Stat Control - Model# B30TPB-BB - Factory Buys Direct
This Sunpak gas wall mounted heater has a two stage wireless remote control and an output up to 34,000 BTUs.
Martin Direct Vent Thermostatic Wall Mounted Heater w/window 20,000 Bt – TinyHouseEssentials
Buck Model 1127 Vent Free Wall Mounted Heater - Natural Gas or Propane ... by Ventless-Gas-Logs.com ... Specializing in Ventless Gas Logs and Ventless Fireplaces