Comparison: Best Gas Space Heater (Updated | Dec 16th)
When winter’s chill seeps through your windows, nothing beats the instant warmth of a reliable gas space heater. We’ve done the legwork, testing and comparing top models to bring you the ultimate guide to the **best gas space heater**s. From safety features to heating efficiency, we’ll help you navigate the choices so you can cozy up with confidence this season.
Editor’s Choice
Best for a specific purpose
- Best for high-power infrared: ProCom Heating Natural Gas Ventless Infrared Plaque Heater With Base Feet – 30
- Best for blue flame convection: Dyna-Glo 30
- Best for infrared radiant heat: Dyna-Glo IR30NMDG-1 30
- Best for compact infrared: ProCom Heating Natural Gas Ventless Infrared Plaque Heater With Base Feet – 10
- Best for dual fuel versatility: Mr. Heater MHVFDF30BFT 30
- Best for propane blue flame: ProCom ML100TBAHR Ventless Propane Gas Blue Flame Space Heater with Thermostat Control for Living Room
- Best for mid-range infrared: ProCom Heating Natural Gas Ventless Infrared Plaque Heater With Base Feet – 18
- Best for forced air power: Dyna-Glo
- Best for portable radiant: Gasland MHA18BN Propane Radiant heater
- Best for propane blue flame: Mr. Heater F299730 30
Product Comparison: Best Gas Space Heater
High-Power Infrared
ProCom Heating Natural Gas Ventless Infrared Plaque Heater With Base Feet – 30,000 BTU, T-Stat Control – Model# MN300TPA-B
ProCom
- TECHNOLOGY: This compact Infrared mini heater produces 30000 Maximum BTU using Natural Gas and heats up to 1400 sq. ft. area; This is a great heater for office, bedroom, living room, and other residential use
- DEPENDABLE: Thermostat control on the heater offers High/Medium/Low Thermostat Control; Ideal for greater heat flow that could add a warm atmosphere as a small space heater
- STYLISH: Without compromising function for beauty, this versatile small heater has been redesigned for a slim & modern profile to effortlessly fit in your room; Mount on a wall with included hardware or place on a floor with Base Feet (Included)
- SAFE: Push button ignition with built-in pilot oxygen depletion sensor (ODS) immediately shuts down the garage heater if carbon monoxide or lack of oxygen is detected; ANSI Certified to ensure safety
- CONVENIENT: No electricity is required for this personal heater, making it perfect for power outages or any in-house emergencies; Includes Wall Mount and Base Feet
Blue Flame Convection
Dyna-Glo 30,000 BTU Natural Gas Blue Flame Vent Free Wall Heater, White
Dyna-Glo
- Natural Gas Ready (Fuel conversion not permitted).Mounting type:Wall Mount
- Blue Flame Technology works by convecting heat to warm the air the same way as a central heating system
- 15, 000-30, 000 BTU’s/hr. variable heat output for up to 1, 000 sq. ft.
- Variable control knob offers the most customizable heat settings LOW – 15, 000 BTU MED – 22, 500 BTU HI – 30, 000 BTU
- No electricity required allows for reliable back-up heating incase of an emergency situation. Connection Size – 3/8 inch. NPT
- power source type: natural_gas
Infrared Radiant Heat
Dyna-Glo IR30NMDG-1 30,000 BTU Natural Gas Infrared Wall Heater
Dyna-Glo
- Natural Gas Ready (Fuel conversion not permitted)
- Infrared Technology works by radiating heat to warm objects first – Similar to the sun
- Up to 30,000 BTU’s/hr heats up to 1,000 sq. ft.
- LOW-MED-HI variable control knob offers the most customizable heat settings
- No electricity required allows for reliable back-up heating incase of an emergency situation
- Separately sold optional fan (WHF100) improves the amount of square footage the heat reaches in a quiet, yet powerful way!; Separately sold optional base legs (WBL100) allows for stable floor mounting; 1 Year Warranty
Compact Infrared
ProCom Heating Natural Gas Ventless Infrared Plaque Heater With Base Feet – 10,000 BTU, T-Stat Control – Model# MN100TPA-B
ProCom
- TECHNOLOGY: This compact Infrared mini heater produces 10000 Maximum BTU using Natural Gas and heats up to 500 sq. ft. area; This is a great heater for office, bedroom, living room, and other residential use
- DEPENDABLE: Thermostat control on the heater offers High/Medium/Low Thermostat Control; Ideal for greater heat flow that could add a warm atmosphere as a small space heater
- STYLISH: Without compromising function for beauty, this versatile small heater has been redesigned for a slim & modern profile to effortlessly fit in your room; Mount on a wall with included hardware or place on a floor with Base Feet (Included)
- SAFE: Push button ignition with built-in pilot oxygen depletion sensor (ODS) immediately shuts down the garage heater if carbon monoxide or lack of oxygen is detected; ANSI Certified to ensure safety
- CONVENIENT: No electricity is required for this personal heater, making it perfect for power outages or any in-house emergencies; Includes Wall Mount and Base Feet
Dual Fuel Versatility
Mr. Heater MHVFDF30BFT 30,000 BTU Vent Free Blue Flame Dual Fuel Natural Gas and Propane Heater For Cold Rooms, Additions, Sun Rooms & Cabins – White
Mr. Heater
- EFFECTIVE HEATING: Efficiently heats cold rooms and cabins up to 1,000 sq. ft. with 30,000 BTU per hour; this gas wall heater works reliably at elevations up to 4,500 feet, ensuring warmth in even the coldest conditions
- BLUE FLAME DUAL FUEL HEATER: Designed for even convection heating; this heater uses just 1.389 lbs/hr of fuel; it operates on both propane and natural gas, making it a more versatile option than single-fuel gas or LP heaters
- ENHANCED SAFETY FEATURES: The ventless gas heater has an automatic low oxygen shut-off system & patented two-step fuel connection to prevent wrong-fuel hook-ups; fail safe fuel-type selector knob adds an extra layer of safety for reliable operation
- CONVENIENT CONTROL & IGNITION: Featuring a thermostat for precise temperature management; this indoor gas heater offers quick startup with a battery-powered electronic spark ignition; battery included for your convenience
- STYLE AND WARMTH: Enhance your space with this sleek wall-mounted or floor-standing vent free heater designed for indoor use; it combines modern aesthetics with efficient heating, seamlessly complementing any decor
Propane Blue Flame
ProCom ML100TBAHR Ventless Propane Gas Blue Flame Space Heater with Thermostat Control for Living Room, Bedroom, Home Office, 10000 BTU, Heats Up to 300 Sq. Ft., Includes Wall Mount, Black
ProCom
- THIS ITEM IS NOT FOR SALE TO RESIDENTS IN CALIFORNIA OR CANADA.
- TECHNOLOGY – 10, 000 BTU Operates off Liquid Propane Gas (Only) Blue Flame Heater which Heats up to 300 sq. ft. Area
- DEPENDABLE – Thermostat Control offers automatically cycles the burner on and off to maintain a desired room temperature. Ideal for greater heat flow that could add the warm atmosphere in your room
- CONVENIENT: Includes a 10-foot hose with a regulator so the heater can operate off a standard 20lb propane cylinder.
- ECONOMICAL – 99. 9% efficient with Vent Free gas burner. No outside duct or chimney needed! Environmental Protection and Energy Conservation
- SAFE – Push button Piezo ignition with Built-in pilot oxygen depletion sensor (ODS) immediately shuts down the heater if carbon monoxide or lack of oxygen is detected
- WARNING – Not approved for use in California or Canada. Please check local codes for permitted use.
Mid-Range Infrared
ProCom Heating Natural Gas Ventless Infrared Plaque Heater With Base Feet – 18,000 BTU, T-Stat Control – Model# MN180TPA-B
ProCom
- TECHNOLOGY: This compact Infrared mini heater produces 18000 Maximum BTU using Natural Gas and heats up to 950 sq. ft. area; This is a great heater for office, bedroom, living room, and other residential use
- DEPENDABLE: Thermostat control on the heater offers High/Medium/Low Thermostat Control; Ideal for greater heat flow that could add a warm atmosphere as a small space heater
- STYLISH: Without compromising function for beauty, this versatile small heater has been redesigned for a slim & modern profile to effortlessly fit in your room; Mount on a wall with included hardware or place on a floor with Base Feet (Included)
- SAFE: Push button ignition with built-in pilot oxygen depletion sensor (ODS) immediately shuts down the garage heater if carbon monoxide or lack of oxygen is detected; ANSI Certified to ensure safety
- CONVENIENT: No electricity is required for this personal heater, making it perfect for power outages or any in-house emergencies; Includes Wall Mount and Base Feet
Forced Air Power
Dyna-Glo, RMC-FA150NGDGD, Deluxe Natural Gas Forced Air Heater, 150,000 BTU Output
Dyna-Glo
- Variable heat output
- Quick, instant heat
- Requires electricity for operation
- Fan forced hot air
- Natural gas only
Portable Radiant
Gasland MHA18BN Propane Radiant heater, 18,000 BTU Warm Area up to 450 sq. ft, Portable LP Gas Heater for Garages, Workshops and Construction Sites, Ultra Quiet Propane Heater with LP Regulator Hose
GASLAND
- ☀【Safe & Reliable】Our propane Garage heater features with Tip-Over and Low Oxygen Shut-off to enhance safety. Since our small space heater is portable, they may be easier to kick down. The heater will shut off when it gets knocked over accidentally or the oxygen level surroundings is too low.
- ☀【Cut Down Your Electricity Bills】With the Gasland Portable Cabinet Heater—no electricity required. All you need is a 20lb liquid propane cylinder, and you’ll have plenty of warmth. Never worry about power outages when a hurricane strikes. The main advantage is that it helps reduce your electricity bills, with no risk of tripping over electric cords.
- ☀【Mobile & Space Save Design】The Gasland portable propane radiant heater features a convenient, mobile, and space-saving design intended for use in ventilated garages, offices, and workshops. Move this heater effortlessly from room to room, thanks to the built-in rolling wheels and Easy-Carry handle. The tank is housed inside the cabinet, keeping it out of sight, which enhances the heater’s aesthetic appeal.
- ☀【3 Heating Modes】 Customize the heating mode (High/Medium/Low) to keep your room comfortably warm. Delivers up to 18,000 BTU of heat, effectively warming spaces up to 450 square feet.
- ☀【Quiet & Multifunctional Use】The ultra-quiet propane radiant heater creates a serene environment for reading, working, and enjoying parties. Common applications include construction sites, patios, factories, sporting events, utility buildings, and farming activities (such as barns).
Propane Blue Flame
Mr. Heater F299730 30,000 BTU Blue Flame Vent Free Propane Heater For Cold Rooms, Additions, Sun Rooms Cabins & Garage – White
Mr. Heater
- POWERFUL PROPANE WALL HEATER: Provides up to 30,000 BTUs of heat, effectively warming rooms and cabins up to 1,000 sq. ft. Designed for reliable performance even at elevations up to 4,500 ft., ensuring consistent warmth in cold conditions.
- EASY CONTROL & IGNITION: This blue flame heater features a thermostat for accurate temperature control and a hassle-free startup with its battery-powered electronic ignition (battery included), making it simple and convenient to heat your space.
- SAFE HEAT WITH PROPANE INDOOR HEATER: Featuring an automatic low oxygen shut-off system (ODS) and CSA certification, this heater provides reliable performance, keeping your space warm while ensuring safety and peace of mind with every use.
- BLUE FLAME BURNER & CONSUMPTION: This gas wall heater features a blue flame burner for even convection heating, consuming fuel at a rate of 1.389 lbs per hour.
- VERSATILE MOUNTING OPTIONS: Designed for wall or free-standing use, this propane garage heater includes legs and mounting hardware for quick, easy installation to meet your heating needs.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Buying Guide
FAQs
What’s the difference between vented and vent-free gas heaters?
Vented heaters require a flue or chimney to expel combustion gases outside, making them safer for continuous use in occupied rooms. Vent-free models are easier to install and nearly 100% efficient, but they release small amounts of moisture and combustion byproducts into the room, requiring good ventilation and oxygen sensors.
How do I choose the right size heater (BTU) for my space?
To find the right BTU, first calculate the cubic feet of your room (length x width x height). A general rule of thumb is to have about 40 BTUs per cubic foot of space for an uninsulated room and 25 BTUs for a well-insulated room, but always check the manufacturer’s specific recommendations.
Are natural gas and propane heaters interchangeable?
No, a heater is designed to run on either natural gas (NG) or liquid propane (LP), but not both. The gas types operate at different pressures, and using the wrong fuel can be extremely dangerous, so you must choose a heater that matches your home’s available gas line.
What key safety features should I look for?
Prioritize heaters with an Oxygen Depletion Sensor (ODS), which automatically shuts the unit off if room oxygen levels drop too low. Other important safety features include a tip-over switch and an overheat protection sensor to prevent accidental fires.
What are the pros and cons of infrared versus blue flame heaters?
Infrared heaters radiate heat directly to objects and people, making them ideal for spot heating in large, drafty areas. Blue flame heaters warm the air in the entire room, much like a central furnace, making them better for heating smaller, well-insulated spaces evenly.
Can I use a gas heater in my bedroom?
Building codes often have strict regulations, and many prohibit the use of vent-free gas heaters in bedrooms due to the risk of oxygen depletion. Always check your local codes and manufacturer’s guidelines; a vented heater is typically the safer and more compliant choice for sleeping areas.
What does ‘thermostat control’ mean on a gas heater?
A thermostat control allows you to set a desired room temperature, and the heater will cycle on and off to maintain that temperature. This provides more consistent comfort and is more energy-efficient than manually adjusting a low-high heat setting.
How much does it cost to run a gas space heater?
Operating costs are generally lower than electric heaters but depend heavily on your local gas prices (per therm or gallon) and the heater’s BTU rating. High-efficiency models and proper sizing for your space will provide the best value and lowest running costs.