10 Best Ventless Gas Heater 2022

10 Best Ventless Gas Heater 2022

Best Ventless Gas Heater Canada

For those looking for a reliable heater for a large area, ventless heaters are worth looking into.

Below are our top picks for best ventless heaters. We based our picks on customer reviews, features, and overall price value online.

Prices on my list from, $169 – $299 .

  • Dyna-Glo Propane Gas Heater
  • Mr. Heater Natural Gas Ventless Heater
  • Blue Flame Gas Ventless Heater
  • Dyna-Glo Natural Gas Ventless Wall Heater
  • Mr. Heater Radiant Natural Gas Heater
  • Mr. Heater Gas Garage Heater
  • Mr. Heater 20K BTU Natural Gas Heater
  • Coming soon!
  • FYI:  links go to Amazon (had lowest heater prices)

    The Best Ventless Heater Canada

     Top #1 Pick: Mr. Heater Propane Ventless Heater

    Mr. Heater model works on natural gas and heats spaces of 4,500 sq. ft.. (one of the larger heaters on my list)

    It’s fairly similar to the Dyna-Glo Natural Gas Heater in size and power.

    Power: 30,000 BTU

    Room size: 4,500 sq. ft.

    Pricing: Medium

    To allow for convection heat, they included a blue flame heating along with multiple safety features.

    Very easy to install – you can use as a standing ventless heater or mount on a wall.

    Includes legs for use as a portable heater.

    Fair price and good buyer reviews!

    #2.)  Dyna-Glo Propane Ventless Heater

    Dyna-Glo Propane Gas Heater is the best ventless heater for rooms up to 1,000 sq. ft.

    Powerful enough to heat most areas — from a garage, cabin, or just a room in your home.

    Power: 30,000 BTU

    Room size: 1,000 sq. ft.

    Pricing: Medium

    Best thing about Dyna-Glo’s propane wall heaters is that they don’t run on electricity – You can rely on them even during a power outage!

    Heater runs on a liquid propane system making it cost effective.

    Also comes with a remote control allowing you to adjust the temp to your liking.

    One of the key safety features is the new oxygen depletion sensor – notifies you fi there are hazardous gasses in the air.

    #3.) Blue Flame Natural Gas Ventless Heater

    The blue-flame 30,000 BTU ventless heater by Dyna-Glo can warm up large rooms.

    As a user-friendly ventless heater, the Blue Flame model includes a temperature control knob – super easy to adjust heat levels.

    Room size: 1,000 sq. ft.

    Pricing: Medium

    Requiring zero energy, you’ll be able to rely on this heater if the electricity has gone out.

    If you live in an area prone to storms and power outages the electricity-free system is a nice feature. Similar to an space heater, it can operate on low power for long hours.

    Good price and positive reviews online.

    #4.) Dyna-Glo Natural Gas Ventless Heater

    The Dyna-Glo 30,000 BTU model works comes with a natural gas function – It uses blue flame tech to allow convection heat to warm the room.

    It works similarly to a central heating system, except that it can be more portable.

    Room size: 1,000 sq. ft.

    Pricing: Affordable

    I liked how you’re able to control the exact heat that you’d like to keep the room at too.

    The built-in thermostat allows you to control the heat level with the control knob on the side.

    Gas heater operates on an electric-free system  — you can count on it to produce a source of heat during in event of an outage .

    One of the best natural gas ventless heaters on the market.

    #5.) Mr. Heater Radiant Natural Gas Heater

    The Orange-flame, 20,000 BTU ventless gas heater comes with a safety  auto-shutoff feature for low oxygen level.

    I liked how they’ve included a wall mount in case you’d rather have it take less room – in this way it is similar to a mini split heat pump unit.

    Rooms: 4,500 sq. ft.

    Pricing: Affordable

    As a ventless gas heater you can it provides a nice, ambient heat.

    In terms of power it can heat larger rooms of 4,500 square feet . It’s one of the larger ventless heaters on my list.

    Also includes radiant heat and auto-shutoff, safety feature.

    #6.) Mr. Heater Natural Gas Heater

    Blue-flame Mr. Heater has power of  30,000 BTU  and can heat rooms up to 750 sq. ft.

    Like the other Mr. Heater’s on my list, it features an auto-shutoff safety feature that kicks in if the oxygen level has dipped too low. It’s a fantastic mechanism that keeps you out of harm’s way.

    To ensure stable convection heat is able to be produced, they’ve incorporated a blue flame.

     Best Ventless Gas Heater for Smaller Rooms

    I also liked how they included a thermostat . This lets you keep an eye on the temperature. Furthermore, they provide you with everything you need to mount the heater to a wall.

    Alternatively, you could stand it up on the legs provided if you wanted to be more mobile with it.


    • Power: 30,000 BTU
    • Room size:  750 square ft.
    • Weight: 26.7 pounds
    • Best ventless gas heater for smaller spaces
    • Auto shutoff feature
    • Blue flame tech
    • Thermostat included

    Potential Flaws

    • Can produce a smell when in operation

    #7.) Mr. Heater 20k BTU Natural Gas Heater

    This ventless gas heater includes a thermostat lets you control the overall room temperature — the top dial (which you can see on the image above) make it easy to adjust.

     Best Ventless Gas Heater for Small Rooms

    Subtle blue-flame tech, it’s one of the smaller heaters on my list – ideal for rooms up to 500 sq. ft.

    To ensure safety, it also comes with an auto-shutoff feature.


    • Power: 20,000 BTU
    • Room size:  500 square ft.
    • Weight: 28.7 pounds
    • Best ventless gas heater for smaller rooms
    • Thermostat available
    • Auto shutoff feature
    • Quiet operation

    Potential Flaws

    • Aluminum material be too soft for some

    ** I’ll be adding #8-10 Best Ventless Gas Heater later this year! Stay tuned!


    Now that you know more what the best ventless gas heaters have to offer, you can start to narrow down your search.

    Be sure to consider all the main features and potential downsides prior to picking one out. We hope our review helps to make the entire process quick and easy!

    Best Ventless Gas Heater Review

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  • Top #1 Pick: Mr. Heater Propane Ventless Heater
  • #2.) Dyna-Glo Propane Ventless Heater
  • #3.) Blue Flame Natural Gas Ventless Heater
  • #5.) Mr. Heater Radiant Natural Gas Heater
  • #6.) Mr. Heater Natural Gas Heater
  • #7.) Mr. Heater 20k BTU Natural Gas Heater