Best Gas Wall Heaters Under $300

Last updated: November 2, 2026

The best gas wall heaters at a checked price under $300.

Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.

Best Gas Wall Heaters Under $300: Vent-free

  1. Mr. Heater 30K Blue Flame Dual Fuel
    #1 of 144.5Full review

    The pick for heating a big room on either fuel with a thermostat and a long warranty. Add the blower kit for high ceilings.

    Amazon $265.39
    $265.39
    30,000 BTUDual fuelYes
  2. Mr. Heater 30K Radiant Dual Fuel
    #2 of 144.5Full review

    A big radiant heater for a garage, workshop or open room on either fuel. It pairs thermostat control with the longest warranty in this group.

    Amazon $265.39
    $265.39
    30,000 BTUDual fuelYes
  3. Mr. Heater 20K Blue Flame Dual Fuel
    #3 of 144.2Full review

    A thermostat blue flame heater for a living room or cabin of up to about 700 sq ft that may switch between propane and natural gas. The long warranty sets it apart.

    Amazon $199.99
    $199.99
    20,000 BTUDual fuelYes
  4. Mr. Heater 20K Radiant Dual Fuel
    #4 of 144.2Full review

    A radiant heater for a drafty room, shop or cabin up to about 700 sq ft on either fuel. Radiant heat suits spaces where warm air escapes.

    Amazon $209
    $209
    20,000 BTUDual fuelYes
  5. Heatstar HSSVFRD20NGBT 20K Radiant
    #5 of 144.0Full review

    A natural gas radiant heater for a mid size room or workshop that comes complete with blower and thermostat. Pay the premium if you would otherwise buy a fan kit.

    Amazon $259.99
    $259.99
    20,000 BTUNatural gasYes
  6. Comfort Glow KWN523 30K Infrared
    #6 of 143.4Full review

    A thermostat infrared heater for a large natural gas room, basement or garage. It offers a longer warranty than most budget rivals.

    Amazon $257.67
    $257.67
    30,000 BTUNatural gasYes
  7. Dyna-Glo BFSS30NGT-4N 30K Blue Flame
    #7 of 143.3Full review

    A thermostat blue flame heater for a large natural gas room or garage. It works well, but the Mr. Heater dual fuel 30K has a longer warranty for little more.

    Amazon $253.51
    $253.51
    30,000 BTUNatural gasYes
  8. ProCom MN300TPA-B 30K Infrared
    #8 of 143.3Full review

    A low cost thermostat infrared heater for a large natural gas room, workshop or garage. Radiant heat suits spaces where warm air leaks away.

    Amazon $208.12
    $208.12
    30,000 BTUNatural gasYes
  9. ProCom ML300TBA-B 28K Blue Flame
    #9 of 143.3Full review

    The cheapest way here to heat a large propane room or garage with a thermostat. Pick it when price matters more than warranty length.

    Amazon $188.99
    $188.99
    28,000 BTUPropaneYes
  10. Dyna-Glo IR30PMDG-1 30K Infrared
    #10 of 143.1Full review

    A propane infrared heater for a garage, workshop or large drafty room where radiant heat beats warm air. Its wide turn down makes it flexible, but you set the heat by hand.

    Amazon $234.05
    $234.05
    30,000 BTUPropaneNo
  11. ProCom ML200TBA-B 20K Blue Flame
    #11 of 142.9Full review

    A low cost thermostat heater for a propane home, cabin or shop up to a mid size room. It stays useful when the power is out.

    Amazon $170.99
    $170.99
    20,000 BTUPropaneYes
  12. Dyna-Glo BF20NMDG-4 20K Blue Flame
    #12 of 142.6Full review

    A plain manual blue flame heater for a natural gas living room or den. Most buyers will get more for the money from a thermostat model.

    Amazon $210.69
    $210.69
    20,000 BTUNatural gasNo
  13. ProCom MN100TBA-B 10K Blue Flame
    #13 of 142.3Full review

    A cheap thermostat controlled heater for one small natural gas room or office. Buy it when you want hands-off warmth and do not need much output.

    Amazon $129.59
    $129.59
    10,000 BTUNatural gasYes
  14. Dyna-Glo BF10NMDG-4 10K Blue Flame
    #14 of 141.9Full review

    A small manual heater for one natural gas room, including a bedroom where local code allows vent-free heat. Choose a thermostat model if you want it to hold a set temperature.

    Amazon $175.86
    $175.86
    10,000 BTUNatural gasNo

Best Gas Wall Heaters Under $300: Direct vent

  1. Comfort Glow DVN08 Direct Vent Heater
    #1 of 12.7Full review

    For a single small bedroom or bathroom on natural gas where a low price and heat during outages matter more than automatic control.

    Amazon $283.06
    $283.06
    8,000 BTUNatural gasNo