Natural Gas Heaters: Practical, Lower-Cost Home Heating

Natural gas heaters provide dependable heat for homes, garages, workshops, and greenhouses. Available as vent-free, natural-vent (B-vent), and direct-vent units, they can reduce electricity use but require correct installation and regular maintenance. Check local regulations, fuel prices, and install CO detectors.

Why choose a natural gas heater?

When winter arrives, many homeowners look for reliable, cost-effective ways to heat living spaces. Natural gas heaters are a common choice because they deliver steady heat and reduce reliance on electric resistance heating. In many parts of the U.S., gas delivers lower cost-per-BTU than electricity, which can translate to lower monthly heating bills - though fuel prices vary by region and season .

Where you can use gas heaters

Gas heaters are used in homes, garages, workshops, and greenhouses. There are models designed for whole-house systems, room heating, and light commercial or agricultural use. Portable propane units are also available for temporary or job-site heat.

Types of gas heaters

• Vent-free (unvented): These release combustion products into the room and offer high efficiency for space heating. Some jurisdictions restrict or discourage their use in certain rooms because of indoor air-quality concerns - check local codes before installing ¹.

• Natural-vent (B-vent): These use convection to vent combustion gases through a vertical flue. They're common in older installations.

• Direct-vent: These sealed systems draw combustion air from outside and vent directly outdoors, improving indoor air quality and safety.

Safety and maintenance

A gas heater can be safe when properly selected, installed, and maintained. Key steps:

• Have appliances installed by a licensed technician.

• Schedule annual combustion safety checks and cleanings.

• Install and maintain carbon monoxide (CO) detectors and smoke alarms.

• Follow manufacturer clearance and ventilation guidelines.

Shopping tips and manufacturers

Look for Energy Star ratings (where applicable), clear venting options, and manufacturer support. Reputable manufacturers that offer residential and light-commercial gas heaters include Napoleon, Empire Comfort Systems, Harman, and Mr. Heater. Compare warranties, local dealer support, and spare-parts availability.

Final notes

Natural gas heaters remain a practical option for many households and outbuildings, offering reliable heat and potential operating-cost advantages compared with electric resistance heaters. Always confirm local fuel prices and installation rules before deciding, and prioritize certified installation and regular maintenance to keep systems safe and efficient ².

1. Confirm current average cost-per-BTU comparison between natural gas and electricity in the target region.
2. Verify local and state regulations or restrictions for vent-free (unvented) gas heaters, including any state-specific prohibitions.
3. Confirm the listed manufacturers (Napoleon, Empire Comfort Systems, Harman, Mr. Heater) still produce residential gas heaters and check current model availability.