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4.3 out of 5 stars. 342 reviews
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Mr. Heater Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU

4.3

(342 Reviews)

|

Item # 136311399

$289.99
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A woman outside with a dog

Mr. Heater Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU

Mr. Heater Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU

Item # 136311399

Highlights
  • Maximum BTU Heat Output:20,000 BTU
  • Power Type:Propane
  • Heater Area Heated:700 Sq ft
View more details

$289.99
or
or
Notice:
This Item cannot be shipped to CA.
Add a protection plan
What's included
Powersport plans are not available in CA & MD.
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Mr. Heater Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU

Item # 136311399

Highlights
  • Maximum BTU Heat Output:20,000 BTU
  • Power Type:Propane
  • Heater Area Heated:700 Sq ft
View more details

$289.99
or
or
financeCard Logo
$49/mo.†  suggested payments with 6 Months Financing or earn $14 in Rewards+ on this purchase.

Shopping at

Grassland (franklin) TN

Delivery to

Free standard delivery on online footwear & Clothing purchases of $49 and over.


Notice:
This Item cannot be shipped to CA.
Add a protection plan
What's included
Powersport plans are not available in CA & MD.
Neighbor's Club logo
Neighbor’s Club Members earn points with purchases.

Sign in or Join Now

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.

For additional information on this product, please see the Product Documents section for all downloadable user manuals, installation guides, brochures and warranty statements.

Looking for more information on heaters? Check out our guide on heaters in the product documents section.

  • On-board thermostat for accurate temperature control of the blue flame heater
  • Push button electronic ignition makes it easy to start the liquid propane heater
  • Mounting feet and hardware included for mounting the liquid propane heater on the wall or fastening to the floor
  • Factory installed Low Oxygen Safety System
  • Certified vent free blue flame heater
  • 20,000 BTU output per hour
  • For use with liquid propane
  • Heats up to 700 sq. ft.
  • Clean burning blue flame tube for even convection heat
  • 4500 ft. high altitude restriction
  • 1 year limited warranty
  • Convenient top-mounted comfort control adjustable thermostat
  • Battery operated electronic ignition - requires one AA battery (included)
  • Easy to install - wall mount or free standing (feet kit included)
  • ODS low oxygen safety shut-off control

Q&As

1 - 10 of 78 Questions

Q: I want to use this in multiple locations that range from 330 sf (studio shed) and 1,000 sf. Is it light enough to move easily and is it ok to use in the smaller space?

4 months ago
1 Answer
  • A: Thank you for your inquiry. This heater will struggle to run in that smaller space, due to the lower amount of oxygen in that room. It will burn through that and shut itself down for safety reasons. The heater weighs about 24 lbs. Have a great day!
    3 months ago
    Helpful?

Q: Does it have a fan

4 months ago
1 Answer
  • A: Thank you for your inquiry. This unit does not come with an internal fan, but you can add one on using item #F299201. Have a great day!
    4 months ago
    Helpful?

Q: Does propane need to run from outside and through the wall?

4 months ago
1 Answer
  • A: Thank you for your inquiry. Yes, since this heater requires at least a 20 lb tank, the tank will need to be stored outside. Have a great day!
    4 months ago
    Helpful?

Q: how long will it run on 16oz. of propane on high

4 months ago
1 Answer
  • A: Thank you for your inquiry. This heater will not run on a 1 lb bottle of propane. Have a great day!
    4 months ago
    Helpful?

Q: Will this work with 5lb tank?

4 months ago
1 Answer
  • A: Thank you for your inquiry. This heater requires at least a 20 lb tank to operate normally. A smaller tank will struggle to keep the heater running. Have a great day!
    4 months ago
    Helpful?

Q: Why is the 30000 btu cheaper ?

4 months ago
1 Answer
  • A: Hello, thank you for your question. Prices can differ online due to stock, vendor pricing, and how merchandise is sourced or listed, not just BTU ratings.
    4 months ago
    Helpful?

Q: how long does 20 lb. tank last?

4 months ago
1 Answer
  • A: Thank you for your inquiry. This heater burns about 1 lb/hr while it's running. Exactly how often it's running will depend on the thermostat setting it's being run on and the environment that it's in. Have a great day!
    4 months ago
    Helpful?

Q: Is battery included ?

4 months ago
1 Answer
  • A: Thank you for your inquiry. Yes, a battery is included with this heater. Have a great day!
    4 months ago
    Helpful?

Q: What temperature does it run at?

4 months ago
1 Answer
  • A: Thank you for your inquiry. This unit will generate 20k BTUs of heat while in operation. Have a great day!
    4 months ago
    Helpful?

Q: Does it come with a hose to attach to 20 pound propane tank?

4 months ago
1 Answer
  • A: Thank you for your inquiry. No, this unit requires a hose and low pressure propane regulator. We recommend the F273684 kit, but any hose and regulator will work. Have a great day!
    4 months ago
    Helpful?
1 - 10 of 78 Questions

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Reviews

Rating Snapshot

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238 reviews with 5 stars.
42 reviews with 4 stars.
20 reviews with 3 stars.
12 reviews with 2 stars.
30 reviews with 1 star.

Overall Rating

4.3
116 out of 133 (87%) reviewers recommend this product

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1 to 4 of 342 Reviews .
1 – 4 of 342 Reviews
Reviews 3

Heats well

3 months ago
It works amazingly well.
SweepstakesYes
Grove, Ok.
Review 1

Heated 700 sq ft just as advertised.

4 months ago
Very pleased with operation of heater.

Yes, I recommend this product.

Review 1

Not bad

4 months ago
They seem to work ok but fair warning,propane throws out a lot of humidity with its water content. Had to get a dehumidifier as my walls and windows were getting wet. Been super cold in Massachusetts and each using a 40lb tank about every 10 days so not too bad. Way cheaper then electric heat.

Yes, I recommend this product.

oregon
Review 1

Love this Heater

5 months ago
Heats a 1000 square foot room easily, Fuel efficient. Quiet,
SweepstakesYes

Yes, I recommend this product.