Question about Comfort Glow Heating & Cooling

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I have a comfort glow wall mountable natural gas heater. After being on for a while it shuts off. The model number is CGR18N. What cause's this

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Either insufficient fresh air ventilation causing oxygen starvation or the safety thermocouple needs adjustment or replacement. Could be a bit of both...

Posted on Dec 04, 2016

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Posted on Jan 02, 2017

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SOURCE: wont stay lit

If the pilot flame does not touch the thermocouple, the heater will do exactly what you describe.

Get a short piece of copper tubing that will fit snugly over the thermocouple and bend the short piece so that it is in the pilot flame.

Posted on Oct 02, 2009

  • 1 Answer

SOURCE: Natural Gas wall heater

It could be either the thermostat or thermocouple is not getting correct voltage so will intermittent turn on and off.

Posted on Jan 21, 2008

  • 2 Answers

SOURCE: Comfort Glow Vent-free Gas Heater CGN18B

Check with Ebay seller s.a.w.inc for available thermocouples. If that doesn't solve the problem the valve unit will likely need replaced.

Posted on Feb 13, 2009

techline
  • 39 Answers

SOURCE: I have a Dyna-Glo vent-less wall mounted natural gas heater

If it is a few years old, it could be the thermocouple. These are usually available from Lowes. Take your model/serial # and if you can, take the old part too.

Posted on Dec 11, 2009

  • 1 Answer

SOURCE: Comfort Glow Vent-free Gas Heater

I have a comfort glow gas heater that the pilot lights and when I start the heater it works for about 30 seconds then the whole thing shuts down.

Posted on Nov 05, 2010

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COmfort Glow Wall Heater- Initial Set-up. We have gas running to the unit, but no gas is going in the heater.


Is there a valve or thermo couple present that may be inhibiting the flow of gas to the heater?

Dec 08, 2015 | Comfort Glow Heating & Cooling

1 Answer

My propane gas wall heater does not turn off when it reaches its set temperature whats the problem


It has a thermostat that should shut it down, locate and clean if you can, try again , if it still is doing that have the temp sensor replaced

Jan 08, 2015 | Desa International Comfort Glow Infrared...

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I BOUGHT A USED UNVENTED COMFORT GLOW NATURAL GAS HEATER, MADE BY DESA INTERNATIONAL. IS THERE A WAY TO COMVERT IT TO PROPANE?


Check manual, get LP conversion part number than order. If no manual look online under the model number and look up.

Oct 04, 2010 | Desa International Heating & Cooling

1 Answer

I bought a comfort glow vent-less space heater model # CJ18NL. It had a natural gas valve on it and the guy said I could put on a propane valve, which I did. It's not lighting. Is this model only good...


According to the Comfort Glow Website, this is a Natural Gas unit. If you use propane you will need
a minumum 100# LP Cylinder and a pressure regulator. I have a Comfort Glow unit and went through the same process.

If you have it hooked up to a 30lb cylinder without a regulator I would think that if you purged the gas line
of air you should be able to light the pilot.

On a new unit you can expect to push the spark ignitor button at least a dozen times while holding
down the gas valve button.

Good Luck

Feb 19, 2010 | Desa International GWP20T GLOWARM Wall...

2 Answers

Where is the model # located on my Comfort Glow propane heater?


Hi,
Just went down in the basement and checked on mine. Looking at it from the front there is a lable on the left side near the bottom. Mine has the model right on the top of the label. CBN18C is my model number, your should be similar to that, only it may have a LP instead of the N mine is natural gas....

Heatman101

Jan 08, 2010 | Desa International CBN30T Central Heating...

1 Answer

Wont stay lit


If the pilot flame does not touch the thermocouple, the heater will do exactly what you describe.

Get a short piece of copper tubing that will fit snugly over the thermocouple and bend the short piece so that it is in the pilot flame.

Jan 21, 2009 | Heating & Cooling

1 Answer

Comfort Glow Vent-free Gas Heater


I have a comfort glow gas heater that the pilot lights and when I start the heater it works for about 30 seconds then the whole thing shuts down.

Jan 02, 2009 | Heating & Cooling

1 Answer

Heater problem


The first thing I would look for is a blockage in the gasline, or at the gas valve.

It sounds like you are not getting gas to the ignitor/burners. This would cause it to obviosly, not sense flame.

When a unit does not sense flame, it will shut of, and usually try again up to 5 times (depending on brand/model)

So here's what happens in that scenario.

Call for heat.
Inducer motor kicks on, the sensor detects the inducer motor is working, and the ignitor starts glowing/sparking (depending on type of ignitor)

It will then send gas through the gas valve and ignite.
If the flame sensor does not detect flame, the glow coil shuts down, the gas shuts off, the inducer shuts off and you get your error code.

(Some units will then send on the blower motor, and you have to cut power to reset.)

Do you have a copper line with natural gas?
If so, replace it with stainless steel or black iron.

Coper apearantly reacts with the aditives in natural gas and tends to form a gray ashy substance that builds up in the copper tubings walls and eventually cloggs gas valves.

At the inlet side of the gas valve, there should be a screen to catch such things.

Turn off the gas, turn of the power, and remove the gas line going to the gas valve. Look for anything clogging that area, also look for kinks in the gas line.

Remember to use a "flamable gas approved" pipe dope or thread tape when reinstalling the supply line.

Lets see what you find there and then we can continue the diagnostic if needed.

Dec 10, 2008 | Heating & Cooling

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