You should be able to see the flame of the pilot light.
How to light a wall furnace pilot.
But if you follow the pilot tube from the gas supply you should be able to locate the opening buried inside the heater behind a metal plate.
Adjusting the pilot light flame on a gas furnace is the best place to start if it appears that your furnace is not getting as hot as it used to or if it seems like the flame goes out a lot.
This is a very simple process and will only take a couple minutes.
Gas wall heaters whether vented or unvented can supply enough heat to warm a small or medium sized room and they can operate with propane or natural gas.
A number of reasons can cause the wall furnace to not light including a damaged thermocouple a clogged pilot.
Lighting the pilot light on a gas heater is simple to do.
A modern gas furnace usually has an electronic spark generator to ignite the gas when the thermostat calls for heat.
Turn the thermostat to its lowest setting.
How to troubleshoot gas wall heaters.
A number of things can make an old furnace pilot light go out including a strong draft a faulty thermocouple or a loss of gas.
An older gas furnace has a standing pilot that stays on all the time or at least it s supposed to.
When the pilot on your wall furnace does not stay lit your furnace won t heat.
If the pilot light does not light or does not stay lit then replace the thermocouple.
If the pilot light is out attempt to relight it.
Light a gas wall heater with a long match or lighter the hardest part of this job is finding where you have to apply the flame.
Here is how to light the pilot light on a gas heater.