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Mr. Heater Vent Free 20,000 British Thermal Unit Radiant Propane Heater with Thermostat and Automatic Low Oxygen Shut Off for Indoor Use, White

4.4 4.4 out of 5 stars 2,385 ratings

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Purchase options and add-ons

Brand Mr. Heater
Special Feature Low-Oxygen Safety Shutoff
Color Multicolor
Form Factor Cabinet
Indoor/Outdoor Usage Indoor
Power Source
Corded Electric
Heating Method
Convection
Item Weight
24.75 Pounds
Heat Output
30000 British Thermal Units

About this item

  • 20, 000 BTU Liquid Propane heater to heat spaces up to 700 square feet
  • Blue flame burner for even convection heat.
  • Automatic low oxygen shut-off system (ODS). CSA Certified
  • Operating this heater at altitudes over 4, 500 FT above sea level could cause pilot/ODS to shutdown the heater.
  • Thermostat, legs and wall mounting hardware included

Customer ratings by feature

Easy to install
4.3 4.3
Easy to use
4.2 4.2
Comfort
4.2 4.2
Value for money
4.2 4.2

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$39.95
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Mr. Heater Vent Free 20,000 British Thermal Unit Radiant Propane Heater with Thermostat and Automatic Low Oxygen Shut Off for Indoor Use, White
Mr. Heater Vent Free 20,000 British Thermal Unit Radiant Propane Heater with Thermostat and Automatic Low Oxygen Shut Off for Indoor Use, White
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Price-29% $169.99
List:$238.43
-13% $216.90
List:$249.99
-7% $153.99
List:$164.99
-22% $148.49
Typical:$189.99
-10% $52.79
Typical:$58.97
-35% $100.16
List:$155.00
Delivery
Get it Apr 1 - 3
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Customer Ratings
Easy to install
4.3
4.4
3.5
4.4
4.7
Easy to use
4.2
4.8
4.4
4.4
4.6
Value for money
4.2
4.0
4.2
4.3
4.4
Heat output
4.6
3.6
4.5
4.2
Sold By
Acme Tools
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
power source
Corded Electric
gas powered
gas powered
Corded Electric
propane
gas powered
heating method
Convection
Convection
Radiant
Convection
Radiant
Radiant
heating coverage
500 sq ft
700 sq. ft.
950 square feet
750 sq ft
95 sq. ft.
450 sq ft
heat output
30000 btus
20000 btus
20000 btus
30000 btus
3800 btus
18000 btus
weight
24.75 pounds
26.75 pounds
1 pounds
19 pounds

From the manufacturer

Blue Flame Vent Free, home heater, hearth, propane, natural gas, get cozy on the couch
no electricity, no venting, indoor safe, low oxygen safety shut off, wall mounted, free standing

Blue Flame Vent Free, indoor safe, wall mounted, free standing, no electricity

Blue Flame Vent Free, indoor safe, not vented, low oxygen safety shut off

Blue Flame Vent Free,mr heater, wire guards

Can be wall mounted or freestanding, feet and hardware are included

Clean burning blue flame tube burner uses convection heating to warm the air

Wire guard protects against contact with burner

blue flame, convection, indoor, radiant, infrared, drafty, cozy, heat room, vent free
Blue Flame Vent Free Blue Flame Vent Free Blue Flame Vent Free Blue Flame Vent Free Blue Flame Vent Free Blue Flame Vent Free
Learn More Learn More Learn More Learn More Learn More Learn More
Customer Reviews
4.3 out of 5 stars
446
4.3 out of 5 stars
428
4.4 out of 5 stars
2,385
4.4 out of 5 stars
669
4.5 out of 5 stars
2,821
4.5 out of 5 stars
4,035
BTU 10,000 10,000 18,000 20,000 30,000 30,000
Heating Area (Sq. Ft.) 300 300 700 700 1,000 1,000
Ignition Piezo Piezo Battery Igniter (1-AAA) Battery Igniter (1-AAA) Battery Igniter (1-AAA) Battery Igniter (1-AAA)
Inlet Gas Pressure (Max) 14 Inches of Water 14 Inches of Water 14 Inches of Water 14 Inches of Water 14 Inches of Water 14 Inches of Water
Inlet Gas Pressure (Min) 11 Inches of Water 7 Inches of Water 11 Inches of Water 7 Inches of Water 11 Inches of Water 7 Inches of Water
Thermostat X X
Optional Blower Kit X X Sold Separately (F299201) Sold Separately (F299201) Sold Separately (F299201) Sold Separately (F299201)

Product information

Warranty & Support

For warranty information about this product, please click here. [PDF ]

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Mr. Heater Vent Free 20,000 British Thermal Unit Radiant Propane Heater with Thermostat and Automatic Low Oxygen Shut Off for Indoor Use, White


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Product guides and documents

Product Description

This Blue Flame 20,000 BTU Liquid Propane Vent Free heater is the perfect supplemental heating solution even on the coldest days. This heater is conveniently equipped with a thermostat for superior control of the temperature in your space. Also, with a battery powered electronic ignition, starting it is a breeze - battery included. This unit can be permanently mounted to the wall or securely fastened to the floor with included mounting brackets and fasteners. A clean burning blue flame tube burner uses the natural convection of the burn to circulate warm comfortable air. With a factory standard Oxygen Depletion Sensor (ODS), rest assured this heater will provide you with years of comfortable and safe heat.*WE ARE NOT ABLE TO SELL THIS PRODUCT TO CANADA AND CALIFORNIA* ** Please note when operating this heater at altitudes over 4,500 FT above sea level could cause pilot/ODS to shutdown the heater.**

Customer reviews

4.4 out of 5 stars
4.4 out of 5
2,385 global ratings

Customers say

Customers like the ease of installation and performance of the space heater. For example, they mention it's easy to setup and maintain, and the controls are easy to use. That said, some complain about the pilot light not staying lit and the noise it makes. Opinions are mixed on quality.

AI-generated from the text of customer reviews

258 customers mention239 positive19 negative

Customers are satisfied with the warmth of the space heater. For example, they mention it heats well, it's a great heater, and it keeps their house toasty. Some say that the thermostat works great and it saves on gas. Overall, most are happy with the product's warmth.

"Very efficient! Easy to install and operate! It’s great heat for a room that has no heat or insulation (I have a sunroom) it’s perfect...." Read more

"Works well to heat a small space. It has a pilot light which is not ideal for my planned use...." Read more

"Heats my 2 bay garage perfectly" Read more

"liked all, used it in basement. good steady heat source. thermostat works great." Read more

208 customers mention179 positive29 negative

Customers like the performance of the space heater. They say it does a great job, is very efficient, and easy to set up. Some say the thermostat works even below 1. It warms things up quickly and is perfect for their needs.

"Very efficient! Easy to install and operate! It’s great heat for a room that has no heat or insulation (I have a sunroom) it’s perfect...." Read more

"Works great. Great value." Read more

"...I'm in awe these two heaters can keep up but they do, and quite well! They are comparatively economical to operate too...." Read more

"liked all, used it in basement. good steady heat source. thermostat works great." Read more

100 customers mention86 positive14 negative

Customers find the installation process of the space heater to be easy. They mention that it is easy to setup and operational, it starts up very easy, and that maintenance is quick and easy. Customers also say that the controls are easy to use and that it burns very little gas.

"Very efficient! Easy to install and operate! It’s great heat for a room that has no heat or insulation (I have a sunroom) it’s perfect...." Read more

"Very well made and easy setup. I contacted customer service because one part was missing and to ask about a noise it was making...." Read more

"...Don't forget teflon tape for the threaded pipe joints! Maintenance is quick & easy. Basically cleaning the pilot orfice of dust that may accumulate...." Read more

"...It was incredibly easy to install with the Mr. Heater hook up kit. I purchased the one with the blower and it was all essentially plug and play...." Read more

49 customers mention41 positive8 negative

Customers like the value of the space heater. They mention that it's great for the money, comparatively economical to operate, and one of the best heaters money can buy. They also say that it uses propane, which is way cheaper than electricity, and is pretty cheap to run.

"Works great. Great value." Read more

"...They are comparatively economical to operate too. Hopefully our new house will be finished before next winter...." Read more

"...Nope, totally quiet. For my money.... It is an incredible value...." Read more

"...It is a decent replacement for the cost...." Read more

49 customers mention17 positive32 negative

Customers are mixed about the quality of the space heater. Some mention it's well made, dependable, and excellent, while others say it'd not be ideal for their planned use and is extremely inferior. The install kit is completely worthless and the unit does not function reliably.

"...It has a pilot light which is not ideal for my planned use. I have propane tanks to provide fuel and the pilot wastes gas...." Read more

"Very well made and easy setup. I contacted customer service because one part was missing and to ask about a noise it was making...." Read more

"...This is a poor and unsafe design on this heater." Read more

"There is a serious design flaw in this unit, that could have been simply mitigated. The propane input is at the bottom facing down...." Read more

40 customers mention10 positive30 negative

Customers are dissatisfied with the noise produced by the space heater. They mention that it makes a lot of noise popping, banging, and ticking when heating up. The fan is a little noisy, and when it comes on it makes puffing sound. When you first light it, it makes very high pitched howl. The sound is very startling, and the heater screams when starting.

"...When you first light it, it makes a very high pitched howl...." Read more

"...The fan is a little noisy for me but in general it works well for what I'm doing with it." Read more

"...No noise, ( I expected some cracking sounds as the metal expanded and contracted) as it warmed and cooled. Nope, totally quiet...." Read more

"...Also this one makes a lot of noise ping ping ping wakes me up in the night makes me sad. I've read other posts that have the exact same issues." Read more

31 customers mention7 positive24 negative

Customers are dissatisfied with the lighting of the space heater. For example, they mention that the pilot light will not stay lit, it's hard to light, and it only stays lit for about one hour. Customers also say that the unit would have to be refilled with water due to the pilot lights going out.

"...Bought another last month and the pilot light will not stay lit. Another issue for me I am using the unit to heat a 10' x 20' greenhouse...." Read more

"...Getting the pilot light to light is a bit tricky but it does eventually go on...." Read more

"...We have called customer support 2 times already, the pilot light will not ignite...." Read more

"...standard size so was easy to get at the local hardware store… lights easy and doesn’t take long to notice it’s on.. I close all the doors and..." Read more

25 customers mention5 positive20 negative

Customers are dissatisfied with the flame of the space heater. They mention that it comes up, has a large burst of yellow flame, and sputters for 30 seconds before actually coming on. The heater stinks up the house and flashes fire out of the grill when it lights. It burns through a regular propane tank in about 24 hours on low. Customers also complain that the flame is open and wide open to the room.

"When temperature changes alstge flame comes up then settles down not sure if it is safe" Read more

"...or especially small children from putting their hand into the flame is very wide and I can actually reach my hand into the flame bar...." Read more

"...When I looked at it I saw what you see in the video; a tiny blue flame fluttering on the heating element, which should have been completely off...." Read more

"I like that it burns clean no carbon monoxide problem ." Read more

This is what you need to set up the heater EASY!!
4 Stars
This is what you need to set up the heater EASY!!
Great when you can figure out how to install it- we went to the home improvement store 5 times getting the wrong parts and a regulator that wouldn't put out enough pressure to make it actually light. So frustrating! Then we went to the propane store and got exactly what we needed and felt like idiots. Anyways Ive taken a picture of what you need!! The mr heater setup, regulator, hose and everything for this exact heater is sold as a package!!! picture of the packaging is attached.Anyways, we use this heater in our RV in Alaska in the snow and it heats up the place beautifully! No need for the extra blower system thing, we just set up fans around the RV.-it heats up so quickly-there is a glass and metal layer over the front so my dogs can't stick their tails in-you actually can't set the amount of heat it puts out. It puts out one amount - A lot. What you can adjust is the timer (1 through 5) and it will automatically turn itself on and off in intervals-pretty much completely silent. I sleep in the same room as it just fine.I only wish there was a lower setting than 1 ! I am sweating after its on setting one during the night. but would rather be sweating than frozen! A heater this big is likely overkill for an RV, maybe get the smaller size :-)
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Top reviews from the United States

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Top reviews from other countries

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Jorge Gordillo
5.0 out of 5 stars Muy eficiente!
Reviewed in Mexico on September 16, 2021
Material Type: PropaneVerified Purchase
Consuelo Sánchez
1.0 out of 5 stars Necesito su ayuda
Reviewed in Mexico on January 17, 2021
Material Type: PropaneVerified Purchase
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Consuelo Sánchez
1.0 out of 5 stars Necesito su ayuda
Reviewed in Mexico on January 17, 2021
Calidad, Aún no lo instalo hace tres semanas instalé mi Calenton pero tal parece que tiene una fuga que el plomero no puede arreglar y la he detectado precisamente en el botón rojo de encendido, el Plomero dice que este artículo no puede abrirse para revisarlo porque está sellado, mi pregunta es pueden hacer algo ustedes por mí, aún lo puedo regresar o cambiar? Agradezco de antemano su atención
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Cliente de Amazon
3.0 out of 5 stars Tiene una falla.
Reviewed in Mexico on January 14, 2021
Material Type: PropaneVerified Purchase
3 people found this helpful
Report
ALFREDO M.
3.0 out of 5 stars Requiere reparación.
Reviewed in Mexico on December 15, 2021
Material Type: PropaneVerified Purchase
One person found this helpful
Report
Javier Migoya Janet
3.0 out of 5 stars Eficacia
Reviewed in Mexico on December 19, 2020
Material Type: PropaneVerified Purchase