Home Furnace vs. Space Heater

Home Furnace vs. Space Heater: Which One Should You Run?

February 8, 2023


When the cold winter season hits, you need to rely on a source of heat to keep your home warm. Not only will this help to ensure that your water lines don't freeze, but it will also help to keep your family comfortable and safe throughout those long winter nights. However, if you're like most homeowners, you're likely weighing the pros and cons of purchasing a space heater or utilizing your home furnace. While space heaters offer a temporary respite, they often fall short in providing consistent, whole-home heating. Enter the home furnace, your steadfast ally against the winter's wrath.

Home Furnace vs. Space Heater: Which One Should You Run?

Home Furnace vs. Space Heaters

One of the most common types of heating systems that you will hear about is the home furnace. Unlike space heaters, which are designed for localized warmth, a home furnace delivers consistent, evenly distributed heat throughout your entire dwelling. Powered by natural gas, propane, or electricity, furnaces generate warmth and circulate it through a network of ducts, ensuring every corner of your home remains cozy and inviting.

Space heaters are similar to electric furnaces in how they work. They have an internal heating element that is powered by electricity. They also have a built-in fan that forces warm air into the room. Space heaters rated for indoor use do not rely on any combustion fuel. Rather, they rely on electricity.

Which is More Practical to Invest In?

Most homeowners who are assessing heating systems are looking for one to heat their entire home. This is where a furnace becomes the practical choice over space heaters. Space heaters are designed to heat a small space, like a bedroom or living room. Furnaces are designed with ducting to heat all the various rooms of your home.

Regarding fuel efficiency, furnaces blow space heaters out of the water. It's much cheaper to run a furnace that burns gas, oil, or propane than a space heater that utilizes electricity. Additionally, an electric furnace can heat an entire home using less energy than multiple space heaters would to achieve the same job.

Cons of Using Space Heaters

The biggest disadvantage of using space heaters in your home is their fire risk. Due to how space heaters operate, they are prone to overheating and getting knocked over. While some newer space heaters have built-in technology to help prevent this issue, not all space heaters do. Since the heat is not received through vents, you must be very careful where you place your space heater.

Additionally, space heaters are not recommended to run when no one is home, as they can be very dangerous when left unattended. This would mean you have to walk into a cold home and turn on your space heaters to warm the place daily. That's simply not practical for anyone who doesn't stay home all day.

Call Us Today

Embrace the assurance of a reliable home furnace with Master Mechanical. Our expert HVAC technicians will guide you through the selection and installation process, ensuring your home is equipped to withstand the harshest winter conditions. Contact us today to transform your chilly abode into a winter haven.


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  • Didn’t Push a Furnace Replacement
    Taylor D.
    Tom, the owner was awesome. He came out immediately when our furnace went out and completed a challenging fix. When I asked if I should replace the furnace he said no. Honest and did outstanding work. Furnace is quieter and seems to be running better than when we moved in!
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    Jeremiah D.
    Tom came over and thoroughly discussed my options. We discussed at length the pros and cons of the most expensive and least expensive options, and came up with a fair price for the products I chose. The crew showed up on time and finished the same day, and was easy to deal with. The new furnace heats my house so much better than the old one. I would definitely use Master Mechanical again. And I have. I’ve now replaced multiple furnaces and AC units using Tom and his crew at Master Mechanical, and would use them again.
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    Master Mechanical responded quickly when our AC failed following a power surge. They quickly diagnosed the problem, and responded patiently to my uninformed consumer questions. Once the team arrived to complete the repair work, they were professional and again, knowledgeable. Prices were fair, and they followed up with me after work was completed. Overall a great company!
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    Master Mechanical is an amazing company! I called last minute (per my friend's recommendation) since my ac broke yesterday. Victor was friendly, fast and explained everything and he ended up fixing my issue---thank you! Highly recommend Services A/C system repair.
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    Bill L.
    Did an excellent job on two repairs. The first was an emergency call for a furnace repair when it was 4 degrees F outside. They showed up on time, diagnosed the problem, went for parts, repaired the furnace all in about an hours time. The second repair was for the whole house humidifier attached to the furnace. It was a minor issue and corrected in less than 40 minutes. Everything is working great. My experience with their work is excellent.