
Does a gas furnace work without electricity?
Unfortunately, no. If you have a gas furnace, it may not work if you do not have access to electricity. Fortunately, there are some techniques that you can use to stay comfortable and safe in an electrical outage. It is easy to think of a gas furnace as a reliable source of heat even when there is no electricity.
What is the best electric furnace for home?
The new electric furnace brands include:
- Goodman (best of the new brands). Unit price (est.): $900.
- Mortex. Unit price (est.): $830.
- Direct Comfort. Unit price (est.): $850.
- Revolv (cheapest electric furnace brand). Unit price (est.): $700.
What is the average cost of a furnace replacement?
The average cost to replace a furnace runs from $2,000 to $7,000 depending on the type you go with and where you live. In extreme cases, you can spend upwards of $40,000 or more, especially for geothermal models. There are a lot of brands to choose from, and it's important to do your research before choosing which is best for you.
How much energy will continuously running a furnace fan use?
Variable Speed Furnace Fans A standard fan motor will typically use about 400 watts per hour while a variable-speed model will only use 75 watts per hour. This is the most direct way that the variable-speed units save electricity, but there are other means by which they affect energy usage as well.

What to do if your furnace is out of power?
During an electrical power outage, turn off power to the furnace. When the electricity is restored to your home, the electrical grid may have some power fluctuations that could damage the electrical components of the furnace. Other sensitive appliances and electronics should be unplugged as well. It is safe to leave a light in the “on” position so that you will know when power is restored. Once electricity is back, it should be safe to turn the furnace back on.
What are the parts of a gas furnace that use electricity?
There are several components of a furnace that operate on electricity. These parts include: Circuit boards that relay information between the furnace and thermostat.
What Happens When the Power Goes Out?
For the vast majority of homeowners who use a furnace with natural gas for heat, an electrical outage means the furnace won’t work. The furnace’s safety system will not allow it to turn on during an electrical outage. It is not safe to try to rig the furnace for heating, as this can compromise health and safety. Homeowners who are concerned about the possibility of electrical outages might consider having an HVAC service technician and an electrician connect the furnace to a generator that can power the furnace’s electrical components. This should only be done by an experienced, licensed and certified service team.
Can a gas furnace work without electricity?
Unfortunately, in most cases, the gas furnace will not work without electricity. Even so, there are some actions that homeowners can take to prepare for electrical outages and ensure their health, safety and comfort during such events.
Do floor furnaces work on natural gas?
Rarely, some homes are outfitted with floor furnaces. These furnaces do operate on natural gas but use a thermopile generator to produce DC current that allows the furnace to communicate with the thermostat.
Is it safe to leave the light on when the furnace is on?
It is safe to leave a light in the “on” position so that you will know when power is restored. Once electricity is back, it should be safe to turn the furnace back on. Now is the time to prepare for upcoming winter weather that could affect the functioning of your home’s furnace.
Can an electrician connect a furnace to a generator?
Homeowners who are concerned about the possibility of electrical outages might consider having an HVAC service technician and an electrician connect the furnace to a generator that can power the furnace’s electrical components. This should only be done by an experienced, licensed and certified service team.
The Parts Of The Furnace That Require Electricity
Relays – switches that control the flow of gas and the system’s safety devices, such as the thermocouple and the fuel regulator.
How To Keep Warm Without Electricity
Since you cannot help how your gas furnace is designed, your next important concern is keeping yourself and your family warm if the power does go out. This is especially worrisome during a snowstorm when temperatures indoors can plunge quickly. Here are ways to generate and preserve heat even without a functioning gas furnace:
Conclusion
The best way to ensure that your gas furnace remains reliable during the cold months is to keep it in good shape. Regular checkups, cleanings, and maintenance will ensure that the system is working as it should. Leave any issues you do not understand to the professionals and make sure that you call one right away for any problems.
Tips for Keeping Warm Without the Benefit Of Electricity
Given that you cannot change the way in which your furnace is built, the next thing to worry about is how to keep everyone in the home warm during a power outage. This can be a special challenge during snowstorms when outside temperatures quickly plummet.
Give Point Bay Fuel a Call For Any of Your HVAC Needs
Point Bay Fuel offers quality heating and cooling service in Ocean and Monmouth County, New Jersey. Our technicians are certified and trained to provide excellent HVAC installations, replacements, repairs, and tune-ups.
How to tell if a water heater is fueled by gas?
It’s located at the bottom of the tank and is usually held in place with one or two small screws. If you remove the panel and see a blue flame. That’s a pilot light , which means your water tank is fueled by gas. Also, without removing the panel you’d likely see a thick black pipe leading into the water heater. This is the gas supply line. In addition, gas water heaters have vents to remove the exhaust created from burning the gas. So, if a vent tube is coming out of the water heater that’s your third sign.
What to do if your HVAC goes out?
If you’re not certain — call your local HVAC company to come out and take a look. I’ve never run into a technician who wasn’t willing to offer advice and/or give a tutorial. Ask questions, and have them show you a shutdown and restart of the system. The next time your power goes out you’ll be equipped with the know how to take action.
How Do I Tell If I Have a Gas?
There are two places to check for gas. The first is the water heater and the second is your furnace. Homes can have electric water heaters and gas furnaces so we’ll want to check both systems to be sure.
What fuel line feeds furnace?
Similar to the water heater — you’re looking for a gas line that feeds your furnace with fuel. Alternatives could be the furnace is fueled by oil in which case you’d see a large 275-gallon oil tank in the basement near your furnace. Or, propane is an option, but those tanks can be buried and you’d have a smaller fuel line leading into the furnace.
Can a gas furnace work during a power outage?
No, during a power outage it isn’t likely your gas furnace will work. Several parts of your heating system, though fueled by gas, use electricity. Blowers, relays, and circuit boards are examples of parts of your gas furnace that rely on electricity.
Can you use an electric starter to ignite a gas tank?
Now, not to confuse things — if you see electricity coming into the top of the water tank and you see the gas supply line — it is possible you have an electric starter to ignite the burner versus a constant pilot light. Modern systems likely have this type of a setup as it is more efficient than wasting fuel on a pilot light. This would be a good point to reiterate that invitation to the local electrician and/or HVAC guy. Let them evaluate your system and tell you exactly what you have.
Do electric water heaters have pilot lights?
Electrical water heaters don’t have pilot lights , don’t have a gas supply line, nor do they have vents. They do have an electrical supply line going into the top of the tank. It’s likely a heavy gauge wire feeding into the top of the water heater.
What are the components of a furnace that cannot be operated without electricity?
There are many components within a furnace that simply could not operate without electricity. These include the following: Blower fan: The blower fan is what sends warm air from your furnace into the home.
What are the components of a furnace?
There are many components within a furnace that simply could not operate without electricity. These include the following: 1 Blower fan: The blower fan is what sends warm air from your furnace into the home. But that doesn’t mean you could simply crowd around the furnace in an event of an emergency; there are other important electrical components as well! 2 Thermostat controls: Without power, there’s no way for your thermostat to communicate to your furnace that it’s time to turn on! The circuit board controlling the furnace from the thermostat will not work otherwise, even if it runs on batteries. 3 Relays: Within your furnace, there are several relay switches that control things such as gas flow and all of the safety switches that ensure your furnace does not run in case of a safety concern. Due to advanced manufacturing, your furnace simply will not run without these backups in place. 4 Electronic ignition: Think you could simply light the pilot and still get heat from your modern furnace? Think again. Most of today’s furnaces use electronic ignition—even natural gas furnaces. A hot surface ignitor or electronic spark gets the furnace going so that a pilot light does not have to stay on all day and night.
What are relays in a furnace?
Relays: Within your furnace, there are several relay switches that control things such as gas flow and all of the safety switches that ensure your furnace does not run in case of a safety concern. Due to advanced manufacturing, your furnace simply will not run without these backups in place.
Can you still use natural gas during a power outage?
While it’s true that you should still have natural gas coming to your home during a regular power outage, that does not mean all gas appliances will still work. Unfortunately, most furnaces will not work in the event of a power outage in your home, and we explain why (and what you can do) in today’s guide.
Can a thermostat communicate with a furnace?
Thermostat controls: Without power, there’s no way for your thermostat to communicate to your furnace that it’s time to turn on! The circuit board controlling the furnace from the thermostat will not work otherwise, even if it runs on batteries.
Can a furnace be rigged without electricity?
We have heard of homeowners attempting to rig the furnace to work without electricity, and this is extremely dangerous. Only a licensed technician should work on your natural gas appliance, no matter what.
Can you use a portable generator to power appliances?
You can get a portable generator that can connect to one or two appliances in the home via extension cords during an outage. However, we recommend a whole-house automatic standby generator that repowers your entire home! Ask us how to get one of these systems for your home.
