Top 8 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 the best ventless heaters. We based our picks on customer reviews, features, and overall price value online.

Prices on my list from $169 – $299.

best ventless propane heater

The Best Ventless Heater Canada

Mr. Heater Propane Ventless Heater

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Mr. Heater’s 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 w/ multiple safety features.

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

Includes legs for use as a portable heater.

Fair price and good buyer reviews!

Dyna-Glo Propane Ventless Heater

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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

The 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!

The heater runs on a liquid propane system making it cost-effective.

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

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

Blue Flame Natural Gas Ventless Heater

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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 a space heater, it can operate on low power for long hours.

Good price and positive reviews online.

Dyna-Glo Natural Gas Ventless Heater

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The Dyna-Glo 30,000 BTU model works comes w/ 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 w/ the control knob on the side.

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

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

Mr. Heater Radiant Natural Gas Heater

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

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 provide 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 features.

Mr. Heater Natural Gas Heater

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Blue-flame Mr. Heater has the 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

  • It can produce a smell when in operation

Mr. Heater 20k BTU Natural Gas Heater

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This ventless gas heater includes a thermostat that lets you control the overall room temperature — the top dial (which you can see in 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 may 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 about 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!

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