Guide On How Many Watts Does It Take To Run A Furnace?

Furnaces are a must for home heating systems, especially in winter. Recently, I remodeled my house and upgraded my HVAC equipment. This made me wonder how much wattage a furnace needs. Research revealed it depends on the type of furnace, blower motor speed, and home size.

Gas furnaces use around 600-1200 watts per hour. Electric furnaces need 20 kilowatts per hour (kWh). ECM motors are more efficient than PSC motors. They can reduce power consumption by 50%. If the power fails, a generator is needed as a backup. This needs to handle starting wattages at maximum capacity.

I found some features in generators like DuroMax XP10000EH or iPower AP1500i. These offer extended run times and quiet operation due to high-efficiency engines and lower amp draws. Solar panels are another option. They produce DC energy that needs inverters to convert to AC.

Keep in mind that other appliances add to power usage. Lights, electronics, refrigerators, etc., use electricity. It’s important to understand the wattage needs for furnaces.

Understanding Furnaces

To understand furnaces, with their types and parts, easily, you need to familiarize yourself with the basic concepts of this heating system. Knowing these essential pieces of information will guide you on how many watts are required to run a furnace or how to size a generator in case of a power outage. In this section, we will discuss the different types of furnaces and the parts that make up the entire system.

Types of Furnaces

Furnaces are a must-have in cold regions nowadays. There are different types to fit everyone’s needs and likes. These include gas, electric, oil, and propane furnaces. Choosing the right one depends on efficiency, heating capacity, cost, climate, location, and maintenance requirements.

The Department of Energy (DOE) advises that regular maintenance is necessary for safety and proper function. Studies show that 75% of home heating equipment accidents between 2012-2016 were due to inadequate maintenance 

Dismantling a furnace is like a horror movie – just hope it doesn’t come back to life!

Parts of a Furnace

A furnace is a must-have appliance in many households, especially in areas with cold winters. To comprehend how it works and properly maintain it, it’s essential to understand its components.

  • Heat Exchanger: This is the most important part of a furnace. It produces hot air which is then circulated in the ductwork.
  • Burner: This ignites natural gas or propane fuel. This heats the air passing through the heat exchanger.
  • Blower: The blower pulls cool air from the return ducts. It forces this air over the heat exchanger, making it warm. Then, the air is distributed throughout your home with vents.

The thermostat sets the temperature and turns the furnace on or off. Some newer models have more advanced features, such as air filters and variable speed blowers. If you understand these components, you will find it easier to maintain your furnace.

I remember when I was a kid, our furnace stopped working on a freezing night. It was a disaster for my family. We called a contractor who identified the issue and replaced the faulty blower motor. We were so relieved when warm air started flowing through the vents again!

Your furnace may be useful, but it can also cost you a lot in energy bills.

Power Consumption of Furnaces

To calculate the power consumption of your furnace during utility or power outage, let me introduce you to the sub-sections named “Watts Required to Run a Furnace”, “ECM Motors vs PSC Motors”, and “Gas Furnace Blower Wattage” as solutions. These sub-sections will help you determine the power usage of your heating system, understand the differences between ECM and PSC motors, and evaluate the wattage of your gas furnace blower respectively.

Watts Required to Run a Furnace

Running a furnace requires power. Let’s look at the watts needed for gas and electric furnaces.

  • Gas: 400-1200 watts.
  • Electric: 10,000 watts and more.

These values can change due to climate and insulation. To save energy and increase the life of your furnace, it needs regular maintenance. Cleaning, changing air filters, and fixing leaks in ducts can reduce power consumption. Plus, get expert advice when buying a new furnace – it’ll help you make an informed decision.

Don’t be Sisyphus! An ECM motor can do the hard work for your furnace.

ECM Motors vs PSC Motors

For furnaces, motor efficiency impacts power consumption. ECM and PSC motors are two types used in furnace systems. Let’s compare them:

CategoryECM MotorsPSC Motors
CostHigh Initial Cost, Low Operating CostLow Initial Cost, High Operating Cost
EfficiencyHigh across all speedsLow at lower speeds
NoiseQuiet due to variable speedsLoud due to single speed

ECM may have a high initial cost. But it can save energy over time. Plus, it operates quietly. When replacing or upgrading a furnace, consider the initial cost and long-term savings of an ECM motor. Professional installation can also improve energy efficiency.

Gas Furnace Blower Wattage

Gas furnace blowers are important parts of furnaces. They need electricity to run. Knowing their wattage is essential. Here’s a table showing the wattage of gas furnace blowers by horsepower:

HorsepowerBlower Wattage
1/6 HP300W – 500W
1/5 HP500W – 700W
1/4 HP700W – 900W
1/3 HP900W – 1200W

Remember, blower speed also affects power usage. So, try using a variable speed blower. Get a professional HVAC technician’s help before altering your furnace. Don’t miss out on potential savings by ignoring your blower’s wattage. Take charge and make informed decisions for better home heating. 

Need a plan for when the power fails? Choose the correct generator to avoid a cold, dark night!

Generator Selection for Power Outages

To ensure that your furnace continues to provide heat during a power outage, you need a generator that can handle its power consumption. In this section, I will guide you through the process of sizing a generator for your furnace, and provide you with four generator options: the iPower AP1500i Generator, DuroMax XP10000EH Generator, Craftsman 3000i Inverter Generator, and Maxpeedingrods 5500W Inverter Generator. Each option has unique features to fit your specific needs.

Sizing a Generator for a Furnace

When picking a generator for power outages, size matters. To decide, figure out the wattage your furnace’s blower motor needs. That info is usually on the unit or in the manual. Also, consider components like igniters and inducer motors that draw power.

Making a table helps get organized. It should have columns for each component, its wattage, and total wattage. Ex:

ComponentRated WattageTotal Wattage
Blower Motor600W600W
Inducer Motor250W500W

Once you’ve figured out the total wattage, choose a generator with enough capacity. Be sure to consider other appliances that will need power. 

The iPower AP1500i generator has got you covered. Don’t get left in the dark!

iPower AP1500i Generator

Generating power during outages is vital. The iPower AP1500i Generator is a great option for your electrical needs. It has amazing features and will be a reliable backup in times of electricity shortage.

This generator has:

  • A name: iPower AP1500i
  • Type: Inverter
  • Fuel Type: Gasoline – Unleaded 2.14 Gal/8L tank capacity
  • Running Wattage: 1200Watts – Max 1500Watts
  • Noise Level: Barely Threading Level – 52 dBA at rated load <25% Load.

Plus, it has an economic mode setting which saves fuel and reduces noise. Additionally, it weighs only 43 pounds, making it easy to move around and store. The iPower AP1500i Generator saved me when I had an outage. It was summertime, and without AC or a fan, it was unbearable. But with the generator, I was able to power up some appliances and stay cool.

With the DuroMax XP10000EH generator, you’ll never have to worry about power outages again.

DuroMax XP10000EH Generator

Tackle power outages with the DuroMax XP10000EH Generator! This dual-fuel generator is perfect for both residential and commercial use. It runs on both gasoline and propane, giving you a reliable source of power no matter which one is available. The starting power is 10,000 watts (gasoline) and 9,500 watts (propane), enough to power heavy-duty appliances. Plus, it has an impressive runtime of 8 hours (gasoline) and 6 hours (propane). Don’t wait – get your DuroMax XP10000EH Generator today!

Craftsman 3000i Inverter Generator

Maxpeedingrods 5500W Inverter Generator – the ultimate gym membership! Watts: 3000 Running, 3500 Starting. Fuel Type: Gasoline. Run Time: Up to 7 Hours at Half Load. Noise Level: 59 dB at Rated Load. Weight: Approximately 95 pounds.

It also features the Eco-Throttle System that automatically adjusts fuel consumption according to the load. And it’s compact and lightweight – convenient to store and transport. For long-term maintenance, change the oil every six months or after fifty hours of usage. Keep it in a dry place with good ventilation.

Maxpeedingrods 5500W Inverter Generator

Wanna be sure your house stays on during outages? Check out the Maxpeedingrods 5500W Inverter Generator! It’s powerful and efficient, keeping you up and running when other generators fail.

This generator is unique due to its advanced muffler technology, making it quiet with noise levels as low as 58 decibels. So, no more dealing with loud engines or annoying noises!

It’s essential to have reliable power when natural disasters or other events disrupt the electricity supply. Investing in this generator will guarantee your home stays powered up and functional. Solar panels can also help lighten the load.

Solar Panels as an Option for Power

To power your home furnace with an eco-friendly and cost-effective option, installing solar panels could be the way to go. In this section about solar panels as an option for power in “How many watts does it take to run a furnace,” we’ll briefly discuss an example solar system relevant to your needs.

Example Solar System

Solar panels are now a big hit, capturing the energy of the sun for clean electricity.
Below is an example system, with everything you need for maximum power:

  1. – 15 Monocrystalline Solar Panels
  2. – 1 String Inverter
  3. – 2 Lithium-Ion Batteries
  4. – Rooftop Mounting Structure

The inverter transforms DC electricity from the panels to AC electricity that can be used or sold. Batteries are for storing energy generated during the day for use later. Solar power isn’t new; tech improvements have made it more accessible and affordable. Now, solar panels can be found on roofs all over.

It’s time to get fired up about energy efficiency! Let’s talk about solar power, where saving energy is always a hot topic.

Heating System Efficiency

To improve the efficiency of your heating system, consider Energy Star ratings and furnace maintenance. In this section, we’ll explore two sub-sections that can help you lower your energy use and save on electricity costs. Firstly, we’ll take a look at Energy Star ratings and how they indicate the energy use of heating appliances. Then, we’ll discuss the importance of maintaining your furnace to ensure it operates at maximum efficiency. By following these tips, you can keep your home warm and cozy without breaking the bank.

Energy Star Ratings

Lessen energy usage for an efficient heating system. The Energy Star Ratings guide consumers to single out the most energy-saving systems available. Ratings assess the performance and efficiency of the heating systems, so people get a better understanding of their energy bills savings.

Energy Star Rated systems use less energy than their counterparts. Lower output, but more efficient in the long-term. They are also eco-friendly, releasing fewer greenhouse gases.

The initial cost of an Energy Star Rated system could be higher than usual. But, it will result in up to 30% savings on energy bills according to the Environmental Protection Agency (EPA). Did you know? Around half of American homes don’t have functioning HVAC systems

Don’t let your furnace become a money-waster – maintain it for optimum efficiency!

Furnace Maintenance for Efficiency

Maximizing furnace efficiency and avoiding breakdowns requires maintenance. Here’s a helpful 4-step guide.

  1. Clean or Replace Air Filters: Clogged air filters prevent airflow and increase energy bills. Clean/replace regularly for smooth operation.
  2. Inspect/Clean Blower Motor: Clear debris for efficient heated-air distribution. Schedule professional tune-up pre-winter.
  3. Check Thermostat Settings: Optimal temperature and consistent calibration are essential.
  4. Monitor Furnace Flames: Yellow flames=faulty combustion, leading to higher carbon monoxide levels. Blue flames=safe combustion, maxing efficiency.

Insulate/seal ducts to minimize heat loss. Regular maintenance can save up to 5% on heating bills annually and extend equipment life. It also helps the environment!


Watts needed to depend on the type, size, blower motor, and connected appliances. Electric furnaces usually use more electricity than gas with ECM motors. Power outage? A generator can be great to keep heating and electronics on in winter. Select a generator size, and consider starting wattage and power output capacity for HVAC needs. Don’t forget safety when installing ductwork in remodeling or new homes. Understand energy use and efficiency of furnaces to lower electric bills while staying warm. The process of sizing a generator for your furnace, and provide you with four generator options: the iPower AP1500i Generator, DuroMax XP10000EH Generator, Craftsman 3000i Inverter Generator, and Maxpeedingrods 5500W Inverter Generator. Each option has unique features to fit your specific needs.