How To Light An Old Wall Furnace

In this episode of repair and replace vance shows how to relight the pilot light in a standing pilot furnace.

How to light an old wall furnace.

An older gas furnace has a standing pilot that stays on all the time or at least it s supposed to. Find your pilot light and gas valve. Turn off the gas to your wall furnace. Turn the valve to off and wait three minutes.

A modern gas furnace usually has an electronic spark generator to ignite the gas when the thermostat calls for heat. Here is how to light the pilot light on a gas heater. Switch the valve to the pilot setting. The gas valve is usually painted red with the on off and pilot settings clearly marked.

Turn the thermostat to its lowest setting. Do not attempt to do this at home in northern california pacific gas electric. They do require maintenance as well but are much easier to maintain by homeowners. 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.

Since they have a pilot light system wall furnaces also can usually be repaired easily if something goes wrong as there are parts that allow for easy service and repair versus total replacement. How to troubleshoot gas wall heaters. In principle lighting a furnace pilot light is not terribly complicated. If your pilot light goes out all you need to.

The supply line is near the furnace and has a cutoff valve to stop the gas flow to the furnace. Wall furnaces house a pilot light much like a water heater. Rotate the valve handle to the off position. 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.

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. Turn off the thermostat remove a few panels to locate the pilot light light it an. 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.