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The holidays are over, decorations are coming down, and for many homeowners, the first January heating bill arrives with an unwelcome surprise. Cold temperatures, extra guests, and increased home heating system usage can all drive energy costs up—but the good news is there are simple ways to lower your heating bill without sacrificing comfort.

Here’s how to keep your home warm and reduce winter energy costs after the holidays.

Adjust Your Thermostat for Energy Efficiency

Lowering your thermostat by just 1–2 degrees can significantly reduce heating costs. A good target is 68°F when you’re home and lower when sleeping or away. Using a programmable or smart thermostat helps automatically control home heating expenses and prevents unnecessary energy use.

Change Your HVAC Air Filter

A dirty air filter forces your HVAC system to work harder, which increases energy bills. Replacing your filter improves airflow, enhances comfort, and helps lower monthly heating costs. Most homes should change filters every 1–3 months, especially during peak winter heating season.

Seal Drafts to Reduce Heat Loss

Air leaks around doors and windows can dramatically increase winter heating bills. Check for drafts around windows, exterior doors, attic access points, basements, and crawl spaces. Sealing these leaks helps prevent heat loss and improves overall home energy efficiency.

Use Natural Sunlight to Heat Your Home

Open curtains or blinds on south-facing windows during the day to allow natural solar heat into your home. At night, close them to keep warm air inside. This simple habit can reduce reliance on your home heating system.

Run Ceiling Fans in Winter Mode

Set ceiling fans to spin clockwise at a low speed. This gently pushes warm air down from the ceiling, improving heating efficiency and helping rooms feel warmer without adjusting the thermostat.

Keep Vents and Registers Clear

Blocked vents restrict airflow and cause your HVAC system to work harder. Make sure furniture, rugs, and curtains aren’t covering vents or registers. Proper airflow helps lower heating energy usage and keeps temperatures consistent throughout your home.

Schedule HVAC Maintenance in January

Routine HVAC maintenance improves system efficiency, reduces the risk of unexpected winter breakdowns, and helps lower long-term heating costs. January is a great time for a heating system tune-up, especially if your system worked overtime during the holidays.

Make Simple Lifestyle Adjustments

Wearing warmer clothing indoors, using blankets, and closing off unused rooms allows you to lower the thermostat slightly without sacrificing comfort. These small changes can lead to noticeable savings on your winter energy bills.

Lower Your Winter Heating Bill with Smart Choices

High winter energy bills aren’t inevitable. By improving heating efficiency, sealing drafts, changing filters, and scheduling professional HVAC maintenance, you can stay comfortable while keeping costs under control all winter long.

If you’d like help reducing your heating bill or improving your heating system’s performance, a professional inspection can make a big difference.

We’re in Your Neighborhood

Whether you’re in Gaithersburg, MD, Chantilly, VA, or Treasure Island, FL, our local teams are ready with 24-hour answering service and experienced technicians who keep your systems running when you need them most.

Gaithersburg, MD

7824 Beechcraft Ave
Gaithersburg, MD, 20879
(301) 260-6000

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Chantilly, VA

26955 Gum Spring Road
Chantilly, VA, 20152
(703) 777-9211

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Treasure Island, FL

10625 1st Street E. Suite 200
Treasure Island, FL, 33706
(727) 999-7002

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We were in desperate need of a fix on our AC system during the July heatwave. The issue arose on a Saturday. Mannix came to the rescue in short order, fixed it, and at a reasonable price. Silvio G was the technician, and he was GREAT. We would definitely use Mannix again!
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I contacted Mannix from a referral of a friend who has benefitted from the excellent service this company provides. I found out a couple I know in Vienna had their heat pump stop working a few months ago and needed to be replaced. I called up the Mannix office later in the day on Monday 11/30/20...
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I have been using Mannix for years. They have replaced my HVAC system and I have them do maintenance twice a year. The past couple of visits have been done by Ramiro. He is professional, polite, knowledgeable, and very helpful in assisting me with tips on the best ways to operate my system. Today,...
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Mannix has always been professional from service calls to repairs and replacements. The technicians are always polite and knowledgeable. They consistently exceed our expectations.
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Before dealing with Mannix I used two very well-known and “reputable” HVAC companies who did nothing but rip us off over the years. I was frustrated and found Mannix Heating & Cooling about 10 years ago. They installed a new HVAC system in my old home, and installed a water...
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They were lifesavers!!! My furnace went out and after three days of dealing with the home warranty company and the unscrupulous vendor they sent to my home, I called Mannix. The service technician was friendly, efficient but most of all honest. He found the problem after twenty minutes, saving...
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I’ve been using Mannix for years and have never been disappointed. They’ve replaced my HVAC, hot water heater and installed a humidifier on my furnace. Whenever I need them, they can get me on the schedule in a timely manner. All the personnel are great and I trust Jerry and his team...
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My 24-year-old heat pump finally decided to stop working. I sent a request for a replacement estimate late one night through the Mannix website and received a phone call early the very next morning to set up an appointment. Eric Holzworth stopped by my house the next day to go over my options. He...
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Mannix proved very responsive in fixing my A/C system. The tech, Erick, was very professional by taking the time showing and explaining to me the system problem prior to taking action replacing the coil. Ashleigh, customer service, was excellent in addressing and following through on concerns in...
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Been a happy Mannix customer for a few years now, but recently had them replace our aging HVAC system. The whole process was very painless, from Eric helping us decide which system was right for our home, to the efficient and professional installation by Billy and Matt. I am very pleased with the...
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