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Comfort Glow vent-free heater information

  • Installation must be done by qualified service persons.
  • Read Owner's Manual before using.
  • Check local codes and ordinances for permitted uses of ventfree heaters.
  • Not for use in recreational vehicles.
  • All ventfree heaters are approved for manufactured (mobile) home installation
  • We reserve the right to amend product specifications without notice.
  • Use ventfree heaters with adequate air (ventilation) only. Humidifies while it heats.
  • Provides water vapor in the area heated. Refer to owner's manual for specifics.
  • Heating areas based on rooms with 8" ceilings.
  • Is Ventfree Gas Heating Right For Me?
  • States Prohibiting Sale or Use of Ventfree Products
  • Operating ventfree heaters at elevations above 4,500 ft. could cause nuisance outages.
  • Ventfree heaters cannot be converted between fuel types.
  • The only ventfree heater warranty we offer is the standard manufacturers warranty. Please read the heater warranty for any limitations or disclaimers.
  • All new ventfree heaters carry a limited two year warranty.
  • All ventfree heater accessories have a one year warranty.
  • ANSI Z21 11.2 Standard and National Fuel Gas Code revised in 1994 to permit wall mounted installations of ventfree gas heaters of 10,000 Btu or less in bedrooms and 6,000 Btu or less in Bathrooms.
  • For complete details see the owners manuals


We are online distributors of Desa heating products listed under the brand names of Vanguard, Master, Reddy, Glow warm and Comfort Glow. Our types of products include vent less fireplace, vent less heater, vent free gas log sets, vent free cast iron stove sets, the ventless heaters allow you the choice of a Reddy blueflame ventless heater, Glow warm blueflame ventfree heater, Glow warm plaque infrared ventfree heater or radiant flame vent free heater, blueflame heaters or plaque infrared heaters from Comfort Glow. Our fireplaces include Vanguard and Comfort Glow vent less fireplace and direct vent fireplace by Desa.

We reserve the right to amend these specifications and pricing at any time without notice.

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