Comfort Glow Infrared Gas Heater KWN521 - 30000 BTU, Vent-Free, Indoor, Heats 1250 Sq Ft
Comfort Glow Infrared Gas Heater KWN521 - 30000 BTU, Vent-Free, Indoor, Heats 1250 Sq Ft
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Comfort Glow Infrared Gas Heater KWN521 - 30000 BTU, Vent-Free, Indoor, Heats 1250 Sq Ft

Comfort Glow Infrared Gas Heater KWN521 - 30000 BTU, Vent-Free, Indoor, Heats 1250 Sq FtDuraHeat Kozy World 30 000 BTU Infrared Natural Gas Wall HeaterDuraHeat Kozy World 18 000 BTU Natural Gas Infrared Wall Mounted Heater
BTU:30000-Out of stock

Key item features

  • Powerful Heating: Delivers 30,000 BTU of radiant heat, capable of warming spaces up to 1,250 sq. ft. using five ceramic plaques.
  • Efficient Operation: Features a vent-free design for 99.9% fuel efficiency, operating on natural gas without requiring electricity.
  • Enhanced Safety: Includes an Oxygen Depletion Sensor and an over-pressure safety device for secure indoor use.
  • Adjustable Comfort: Offers variable heat control and easy piezo ignition for customizable temperature settings.
  • Flexible Installation: Designed for simple setup with an included wall bracket and hardware kit, with an optional floor mounting kit available.
  • Residential/Commercial Use: Suitable for standard US residential and light-commercial installations, including new construction and replacement work.
  • Standardized Compatibility: Built to meet common US residential install specifications with universal industry-standard interfaces.
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4.7 out of 5 stars
stars18 ratings8 reviews
How item rating is calculated
  1. 5 stars89% (16)
  2. 4 stars6% (1)
  3. 3 stars0% (0)
  4. 2 stars0% (0)
  5. 1 star6% (1)
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Showing 1-3 of 8 reviews

Oct 15, 2025
anonymous
Item details
BTU: 18000
Sold and shipped byComfort Home Products
5 out of 5 stars review

Verified Purchase

Love it

Purchased for a large bedroom and on the lowest setting this thing throws out a lot of heat. Much better than expected and I'm about to order another to put in the living room. Was also very easy to mount on the wall and hook up.

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Feb 9, 2026
opal
Item details
BTU: 18000
Sold and shipped byComfort Home Products
5 out of 5 stars review

Verified Purchase

The heater is amazing but I'm waiting on the propane guys to come on the 12th of February to install. I will tell you more after that

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reply from Comfort Glow

Thank you for your comments. We feel certain you will love this heater even more after the propane guy hooks it up.

May 18, 2026
Patricia
Top Reviewer
Item details
BTU: 18000
Sold and shipped byComfort Home Products
5 out of 5 stars review

Verified Purchase

Looks Good

Still in box. Everything appears ok from the outside of the box. I hope and pray everything is good.

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