How To Light A Wall Furnace? Safety Precautions, Maintenance


Lighting a wall furnace? No problem!

  1. Locate the pilot light and turn the gas control knob to “off.” Wait a few minutes for any gas to dissipate.
  2. Reach for the reset button to relight the pilot flame. If no luck, check the thermocouple or gas valve.
  3. Turn on the gas supply and adjust the temperature dial. Electric ignition? Press the ignition button or switch.

For old wall furnaces, including gas wall heaters and natural gas heaters, start by turning off the control knob and waiting five minutes before lighting the pilot light. Reset the button, then turn on gas valves and tighten any loose connections. Unsure? Use reliable images for reference.

Pro Tip: Read through the device manual before relighting. Different makes and models have different procedures. Plus, fire up all your house heaters regularly to keep them in tip-top condition. I may not understand love, but I certainly know how to handle a wall furnace.

What is a Wall Furnace?

Wall Furnaces is the perfect home heating solution. Cozy warmth and savings on energy bills all in one. Mounted on the wall, they come as gas or electric models with safety features built-in.

Size and fuel type are important factors to consider. Gas wall furnaces are more efficient and require proper ventilation. Electric ones are easier to install but may be pricier in the long run.

You can direct heat toward specific areas of a room with ease. Plus, wall furnaces are much quieter than other heating alternatives.

Wall furnaces were first introduced way back in the early 1900s. Nowadays, they’ve been upgraded with better safety and efficiency.

How To Light A Wall Furnace

Image of a wall furnace

Types of Wall Furnaces

Wall furnaces are available in various types and styles. 

Let’s look at the popular ones.

Gas Vent-FreeUses natural gas or propane. No venting needed. Energy efficient.
Gas VentedVentilation is required. Uses natural gas or propane. Provides a lot of heat.
Electric ConvectionOperates on electricity. Fans quickly heat the air. Easy to use and maintain.
Electric RadiantTransfers heat directly to objects. Safe to touch. Operates on electricity. Zone heating capabilities.

Wall furnaces have great features. They can heat specific areas in a home. Gas-powered furnaces are more cost-effective than electric ones. Installing wall-mounted units is easy.

In 1935, General Electric created the first wall-mounted heating system. Since then, wall furnaces have become more efficient and functional. Today, you can easily find a wall furnace that meets your heating needs.

Keep in mind, safety precautions are important. Ignoring them can lead to a fire department lecture.

Safety Precautions

To ensure your safety while lighting a gas wall furnace, it is important to follow certain precautions and safety guidelines. By following these precautions, you can ensure a smooth and safe ignition of your wall furnace without any risk of accidents or injuries.

General Safety Guidelines

It is essential to be safe in any environment. 

Here are General Safety Guidelines:

  • Wear protective gear when needed.
  • Make sure the environment has proper ventilation and lighting.
  • Keep emergency exits clear and accessible.
  • Know safety protocols and procedures.
  • Report any potential hazards or incidents to authorities.

Stay informed by attending safety training sessions. Being informed helps you and those around you stay safe. Did you know that 5,333 workers died on the job in 2019 according to the Occupational Safety and Health Administration (OSHA)?

Before you use the gas wall heater, check it out to make sure it’s not trying to hurt you.

Precautions Before Lighting the Gas Wall Heater

Lighting a gas wall heater can be risky. 

Keep safe by following four simple steps:

  1. Check for any gas leaks or heater damage.
  2. Clear any flammable items from the area.
  3. Turn off all electronics before switching on the heater.
  4. Have a fire extinguisher handy.

Apart from that, never leave the heater unattended and have it regularly serviced. Ventilation is also key, make sure the room has enough fresh air when using the heater.

Safety needs to be your number one priority. Follow these steps to avoid any accidents. Also, speak to a professional if you have doubts or concerns. Stay safe and warm this winter.

Do’s and Don’ts When Lighting a Gas Wall Heater

Who needs a tutorial on lighting a gas wall furnace? Just toss a match in and hope for the best.

But, it’s important to take some precautions to stay safe. 


  1. Turn off the gas valve before igniting.
  2. Clear the area around the heater of combustible materials.
  3. Keep flammables away from the pilot light.
  4. Ignite the match first, then turn on the gas.
  5. Take necessary safety precautions to prevent harm.


  1. Don’t adjust or clean the furnace while it’s hot or on.
  2. Don’t leave the furnace unattended.
  3. Don’t let kids and pets near the furnace.

Steps on How to Light a Gas Wall Furnace

Light your gas wall furnace using the steps outlined in the section.

Check the Thermostat

Ensure your gas wall furnace is working right and check the thermostat. Set it to the temperature you want. Check the battery or wiring and repair/replace if needed. Verify it’s connected correctly.

Place the thermostat in a central area away from direct sunlight and drafts. This prevents false readings and incorrect heating.

My friend once had a problem with their gas wall furnace cooling, even when the thermostat was at its lowest. After checking everything else, they realized the thermostat was the culprit and fixed it fast.

Make sure the gas is flowing freely too, so your wall furnace isn’t just a fancy paperweight.

Check the Gas Supply

Before lighting your gas wall furnace, check your gas supply. Make sure the valve is open. Also, look out for cracks or damages in the gas line. Use a manometer for the supply line pressure; if below recommended levels, call a pro.

Inspect all outside vents for blockages or obstructions that can cause improper air circulation. Take precautions to prevent fire hazards by keeping combustible materials away from the furnace.

My friend once forgot to check her gas wall furnace before turning it on after months of disuse. She experienced breathing problems due to carbon monoxide poisoning as her exhaust vents were blocked and leaked. Thankfully, she spotted the issue early and was alright after airing her house and getting medical help.

Checking your gas supply and furnace before use can help keep everyone safe. Don’t forget to look for the gas valve and control knob.

Locate the Gas Valve and Control Knob

Light your gas wall furnace with ease. 

First, turn off the power to avoid any potential hazards. Next, locate the gas valve and control knob. Check behind or under your furnace unit for a small metal flap, lift it up to find the gas control valve, and turn the knob counterclockwise until you hear a hissing noise. 

You may hear an igniting sound and experience a slight delay in warmth as air moves through the system. 

Pro tip: if you have trouble finding the valve and knob, refer to the user manual or contact a technician for help. Let’s light up that gas-wall furnace.

Turn the Gas Control Knob

Gas wall furnaces are great for heating through the winter. If you’re new to using them, lighting them may seem intimidating. 

Here’s how to do it:

  1. Find the Gas Control Knob. It’s usually at the bottom of the furnace & labeled.
  2. Turn the knob counterclockwise to the ‘pilot’ setting.
  3. Press & hold the Pilot knob while you light it with a match or lighter.
  4. Be cautious when dealing with gas appliances & check for any leaks before lighting.
  5. For safe & efficient use, get an annual maintenance check from a pro technician to inspect & clean your appliance’s parts.

Lighting up your wall furnace is easy. Enjoy warm, cozy evenings at home.

Light the Pilot Light

Lighting the pilot light of your gas wall furnace is easy. Take these steps for an effective furnace.

  1. Locate the gas valve.
  2. Turn it off and wait 5 minutes.
  3. Find the pilot light assembly with a ‘pilot’ and ‘off’ knob.
  4. Turn the knob to ‘pilot’ and press down.
  5. Ignite the pilot burner with a lighter or matchstick.
  6. Hold knob down for 30 secs before releasing.
  7. Turn knob to ‘on’ (or ‘heat’).
  8. Set thermostat to high to activate furnace.
  9. Wait a few minutes for warm air to come out of vents.

Remember to clean the vent and change the air filters yearly for good performance. Gas-powered furnaces need regular upkeep for long life. Waiting for the pilot flame to reach the thermocouple can be like waiting for a late date, you getting cozy with hot gas.

Wait for the Pilot Flame to Reach the Thermocouple

Ready to light up your gas wall furnace? Wait for the pilot flame to reach the thermocouple – it’s essential for optimal functioning. 

Here’s a five-step guide to help you out!

  1. Find the gas valve and switch it off.
  2. Open up the furnace door and locate the pilot light.
  3. Turn the gas valve back on, press the reset button for 30 secs, and hold a lit match close to it.
  4. Keep pressing the reset button until the pilot flame reaches the thermocouple.
  5. Give your furnace at least 15 minutes before restarting it.

It’s important to read and understand your unit’s manual before attempting any DIY repairs. Also, remember to have regular maintenance done, don’t wait until it breaks down! With this guide, you can enjoy the warmth without unnecessary expenses.

Adjust the Temperature

Maintaining the perfect temp is essential for gas wall furnaces.

Follow these 6 easy steps to adjust the heat output and enjoy the optimal heating experience:

  1. Locate the thermostat knob or display panel.
  2. Tweak the dial to change the heat settings up or down.
  3. Listen for a click signaling a change in temperature.
  4. Wait a few minutes for the furnace to adjust.
  5. Keep adjusting until you find the desired heat level.
  6. Monitor your energy bill to make sure you’re not overusing.

Additionally, make sure air vents and heaters are clear from debris. This will ensure optimal performance from your gas wall furnace.

In 1975, Arthur Erickson invented a natural gas-powered radiant heater. Since then, scientists have been trying to make them more efficient for households.

If you’re having trouble with yours, call a repairman.

Troubleshooting Gas Wall Furnace

To troubleshoot gas wall furnaces with common problems, there are some quick and easy fixes you can do on your own. If your gas wall furnace won’t light, there are some simple steps to get the pilot light igniting again. And, if your gas wall furnace keeps turning off, don’t worry, there’s a simple solution for this too. 

Common Problems With Gas Wall Furnaces

Gas wall furnaces can be a pain when something goes wrong. Common issues include faulty ignition, limited airflow, and dirty burners. Maintenance is key to keep these problems at bay.

Troubleshoot with the thermostat settings first. Check for loose connections or worn-out components like thermocouples. Call a pro if the problem persists.

Carbon monoxide leaks are the most dangerous. Install a detector near your furnace to be safe.

Pro Tip: Clean burners & replace filters every few months, this will keep your furnace running optimally & prevent costly repairs.

How to Fix a Gas Wall Furnace That Won’t Light

When your gas wall furnace isn’t doing its job, don’t let winter catch you off guard. 

Take action and check up on it. Here’s what to do:

  1. Step 1: Check the pilot light. Ensure it’s lit. If not, try following the manual to relight it.
  2. Step 2: Check if gas is supplied. Look at the meter and shutoff valve to make sure the gas isn’t turned off or running low.
  3. Step 3: Conduct an inspection. Check all parts of the gas wall furnace for damage or faultiness. You may need to repair or replace components like the thermocouple or ignition.

Keep your heater running and your home warm this winter, take care of your appliances!

How to Fix a Gas Wall Furnace That Keeps Turning Off

Don’t worry if your gas wall furnace is acting up. Here’s how to fix it. 

Start by checking if the thermostat is set correctly and functioning properly. Then, make sure the air filter is clean and not clogged. Lastly, check the pilot light to ensure it’s lit.

It’s important to remember to keep up with maintenance like cleaning filters. This can prevent your furnace from malfunctioning.

Also, get your ductwork cleaned regularly. Dirt buildup can cause overheating and unwanted airflow.

Plus, schedule an annual tune-up with a pro HVAC technician so small issues don’t become bigger ones.

don’t forget to do some cleaning. Gas wall furnaces don’t do it themselves.

Maintenance and Cleaning

To take care of your gas wall furnace, you need to know how to maintain and clean it. 

These sections will provide you with the necessary instructions and answers you need to keep your gas wall heater running smoothly and safely.

Cleaning the Gas Wall Heater

To keep your gas wall heater in top shape, cleaning is key. 

Here’s what to do:

  1. Turn off the gas and let it cool.
  2. Use a soft brush or cloth to take out dust and debris.
  3. Vacuum up any leftover mess from the vents.
  4. Wipe down the outside with a damp cloth, avoiding the vents.

If you spot any rust or cracks, call a professional for repair or replacement.

As a bonus tip, schedule regular check-ups with a technician. This ensures your gas wall heater operates safely and efficiently. Give your furnace some love and care with these easy maintenance tricks.

Maintenance Tips for Gas Wall Furnace

Maintenance for gas wall furnaces is a must. Cleaning can stop debris build-up, conserve energy and expand the life of your furnace. 

Here are some maintenance steps:

  • Check for any harm.
  • Scrub the burners and blower blades.
  • Check the air filter often.
  • Investigate the gas line and connections for leaks.
  • Test the thermostat to make sure it functions properly.

Getting a pro to do this yearly is also vital. Routine maintenance can locate any problems before they become major issues and reduce the possibility of costly breakdowns.

When doing maintenance, always obey your manufacturer’s directions regarding repairs or replacing of parts. An inadequately maintained furnace can cause safety hazards like carbon monoxide poisoning or fires.

Recently, a family had a scare when their carbon monoxide detector went off. Firefighters determined that their poorly maintained furnace was the source. Fortunately, no one was injured.

This story illustrates the importance of regular maintenance and cleaning of gas wall furnaces.

Cleaning may be a chore, but skipping maintenance will give you more problems down the road. So take good care of your gas wall furnace. It will help you save energy, and protect your family by ensuring safe operation.


In this article the ways of lighting a wall furnace is described. Light the wall furnace with the steps above. After relighting the pilot flame, adjust the temperature using the control dial. Check for leaks and reset any issues with the reset button. But be careful when working with gas heaters. Always follow manufacturer instructions for safety. Enjoy the warmth.