10 Best Natural Gas Furnace of December 2025

• 50,000 BTU per hour heats up to 1250 sq. ft.
• Powered exhaust allows for vertical or horizontal venting
• Easy outside access to thermostat and A/C terminals and gas connection
• Natural Gas to Liquid Propane conversion kit and 2 angle brackets for ceiling mount included
• Minimum 8 ft clearance from floor to base of heater required; Limited 3 year warranty on parts and burners and 10 year warranty on any defects in the heat exchanger

Mr. Heater

• Operates as a natural gas furnace out of the box, and can be easily converted to a propane furnace with optional propane conversion kit (see Accessories tab). Corrosion-resistant, aluminized-steel tubular furnace heat exchanger Furnace is designed for multi-position installation - Goodman GMS8: upflow, horizontal right or left; Goodman GDS8: dedicated downflow Energy-saving, reliable hot surface ignition system with Goodman furnace patented adaptive learning algorithm to maximize igniter life Al

Goodman

• Natural Gas Ready (Fuel conversion not permitted)
• Blue Flame Technology works by convicting heat to warm the air the same way as a central heating system
• 15, 000-30, 000 BTU's/hr. adjustable heat output for up to 1, 000 sq. ft.
• Thermostat control knob automatically maintains your ideal heat level
• No electricity required allows for reliable back-up heating incase of an emergency situation

Dyna-Glo

• This bundle consists of the Goodman 2.5 Ton 13 SEER Air Conditioner, Goodman 96% AFUE 80,000 BTU Gas Furnace and Goodman Upflow/Downflow Coil
• Due to Federal Guidelines and Restrictions this item cannot be sold in the following states: California, Nevada, New Mexico, Arizona, Texas, Oklahoma, Arkansas, Louisiana, Mississippi, Tennessee, Kentucky, Virginia, Maryland, Delaware, Alabama, Georgia, South Carolina, North Carolina, and Florida
• This comes with a 10-year parts limited warranty provided it is installed by a qualified installer and registered online
• Accessories such as thermostats, conversion kits, outdoor sensors, etc Sold Separately

Goodman

• High quality
• Long lasting
• Reliable

Goodman

• Modern Cabinet Design
• Standby Power of Less Than 1 Watt
• Materials: Metal, Plastic

Rinnai

• Goodman Single Speed 1-Stage Upflow/Horizontal Gas Furnace, Low Nox, 96% Afue, 80,000 Btu/H, 1,200 Cfm, 175 In Width
• This furnace is covered by what we believe to be one of the best warranties in the indoor home comfort industry
• This is manufactured in United States

Goodman

• Your purchase includes One Mr. Heater Big Maxx Natural Gas Heater with 2 angle brackets & Liquid Propane conversion kit | Thermostat, hose & regulator not included
• Heater dimensions – 29.33” L x 15.50” W x 26.37” H | Coverage area – 2000 Sq. Ft. | Performance – 80,000 BTU | Amps – 2.3 | Voltage – 120 V | Min 8 ft. clearance from floor to base of unit
• For use with natural gas | Category 1 vertical, category 3 horizontal venting
• Powered exhaust allows for vertical or horizontal venting | Spark ignition features self-diagnostic control module
• This heater offers the operating versatility and safety that you have come to expect from Mr. Heater | Limited 3 year warranty on parts and burners

Mr. Heater

• Rinnai FC824P Vent-Free Space Heater - Propane
• Input range 8,000 to 22,000 BTU/hour
• Ideal supplemental heating solution for room additions, basements, and sunrooms
• Tilt Switch - Push-Button, Electronic Ignition
• Cool-to-the-touch cabinet keeps you and your family safe

Rinnai

• Matchless pilot igniter for safe use
• Thermostat may be mounted on the wall or on the furnace cabinet
• Rated for elevations up to 2,000 ft.
• Durable ceramic-coated combustion chamber for increased efficiency
• Requires no electricity for operation

Williams