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4.2
(14)
4.2 out of 5 stars. 14 reviews
product-image
Shop all Mr. Heater

Mr. Heater 20.25 in. Dual Fuel Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU

4.2

(14 Reviews)

|

Item # 149662799

$199.99
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  9. Mr. Heater 20.25 in. Dual Fuel Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU

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  4. Wall & Baseboard Heaters

Mr. Heater 20.25 in. Dual Fuel Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU

Shop all Mr. Heater
Mr. Heater 20.25 in. Dual Fuel Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU

Item # 149662799

Mr. Heater Mr. Heater 20.25 in. Dual Fuel Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Mr. Heater Mr. Heater 20.25 in. Dual Fuel Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Highlights
  • Maximum BTU Heat Output:20,000 BTU
  • Heater Area Heated:700 Sq ft
  • Product Length:11.42 in.
View more details

$199.99
or
or
Notice:
This Item cannot be shipped to CA.
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Shop all Mr. Heater
Mr. Heater 20.25 in. Dual Fuel Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU

Item # 149662799

Mr. Heater Mr. Heater 20.25 in. Dual Fuel Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Mr. Heater Mr. Heater 20.25 in. Dual Fuel Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Highlights
  • Maximum BTU Heat Output:20,000 BTU
  • Heater Area Heated:700 Sq ft
  • Product Length:11.42 in.
View more details

$199.99
or
or
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$34/mo.†  suggested payments with 6 Months Financing or earn $9 in Rewards+ on this purchase.

This item is available online only

Out of stock delivering to

37027

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Notice:
This Item cannot be shipped to CA.
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Mr. Heater certified dual fuel vent free heaters are your perfect supplemental heating solution. This blue flame 20,000 BTU heater comes with integrated electronic ignition and on-board thermostat for superior temperature control. With mounting feet and wall mount hardware included, installing and starting the unit is a breeze. Mr. Heater provides peace-of-mind with a patented, two-step fuel connection process to eliminate wrong-fuel hook-up. Featuring a clean burning blue flame tube, the heater uses natural convection properties to circulate warm, comfortable air. With factory installed dual, Low Oxygen Safety System, you can be confident and comfortable for years to come.

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.

  • Dual LP/NG Low Oxygen Detection Systems
  • Fail-safe fuel-type selector knob for simple use
  • Thermostatic Control for Accurate Temperature
  • Battery Operated Electronic Spark Ignition
  • Feet and Wall Mounting Hardware Included
BrandMr. Heater
Country of OriginImported
Assembly RequiredPartial
FinishPowder-Coated
Heater Area Heated700 Sq ft
Heater ControlDial
Heater FeaturesVent-Free
Installation TypeWall mount
Heater Maximum BTU Heat Output Range20,000 - 40,000
Housing MaterialMetal
Maximum BTU Heat Output20,000 BTU
Number Of Heat Settings5
Product Height25.51 in.
Product Length11.42 in.
Product Weight20.82 lb.
Product Width20.28 in.
Voltage120V
Warranty1 Year Limited
Wattage5K W
Manufacturer Part NumberF299320

Have a question?
Start typing your question and we'll check if it was already asked and answered.
1 - 8 of 8 Questions
Sort by
Newest questions

Q: Can the propane tank be kept in the house

6 months ago
1 Answer
  • A: Thank you for your inquiry. In most places, keeping a propane tank larger than 1 lb indoors is against fire codes. We recommend checking your local laws for the best guidance on propane storage. Have a great day!
    5 months ago
    Helpful?

Q: real nice even with additional information what are the DUAL FUELS that it uses? Gasoline? Propane? Kerosene? What exactly?

6 months ago
1 Answer
  • A: Thank you for your inquiry. This heater can use propane (LP) or natural gas (NG). Have a great day!
    5 months ago
    Helpful?

Q: Can this product be used with a 100 lb propane tank?

7 months ago
2 Answers
  • A: Thank you for your inquiry. This heater can be used with any propane tank that is 20 lb or larger. Have a great day!
    7 months ago
    Helpful?

Q: Will the Mr Heater adapter and hose for a 15-pound tank be able to work with the MHVFDF20BFT F299320 unit? Thanks!

8 months ago
1 Answer
  • A: Thank you for your inquiry. For this heater we recommend the F273684 kit, which includes a hose, low pressure regulator, and the fittings to connect them to the heater. However, any low pressure regulator and hose will work. Have a great day!
    8 months ago
    Helpful?

Q: Can i use this heater at elevation of 4700 ft

8 months ago
1 Answer
  • A: Thank you for your inquiry. These heaters have an elevation limit of 4,500 ft. Above that, the heater will struggle to operate normally. Have a great day!
    8 months ago
    Helpful?

Q: I just installed this heater. But its burning an orange flame. I know thats mot right. Since the unit is new, does this mean it’s something on my tank outside?

9 months ago
1 Answer
  • A: Thank you for your inquiry. The exact color of your flame will vary based on a few things, such as the quality of the air around the heater and how clean the heater is. Seeing some orange flame is normal. Please feel free to reach out to us directly at 1-855-663-0660 if you have any more questions about the color of your flame. Have a great day!
    8 months ago
    Helpful?

Q: Will this operate on natural gas? If so, do I need any additional parts for it

9 months ago
1 Answer
  • A: Thank you for your inquiry. This dual fuel heater will run on either natural gas or propane, without the need for additional parts. Have a great day!
    9 months ago
    Helpful?

Q: Does it come with all the hooks up how do u hook prone to it

a year ago
1 Answer
  • A: Thank you for your inquiry. No, this heater doesn't come with the hose or regulator needed to run it. You'll need a low pressure propane regulator and a propane hose to connect this heater to a propane tank. Have a great day!
    a year ago
    Helpful?

Q&As

Have a question?
Start typing your question and we'll check if it was already asked and answered.
1 - 8 of 8 Questions
Sort by
Newest questions

Q: Can the propane tank be kept in the house

6 months ago
1 Answer
  • A: Thank you for your inquiry. In most places, keeping a propane tank larger than 1 lb indoors is against fire codes. We recommend checking your local laws for the best guidance on propane storage. Have a great day!
    5 months ago
    Helpful?

Q: real nice even with additional information what are the DUAL FUELS that it uses? Gasoline? Propane? Kerosene? What exactly?

6 months ago
1 Answer
  • A: Thank you for your inquiry. This heater can use propane (LP) or natural gas (NG). Have a great day!
    5 months ago
    Helpful?

Q: Can this product be used with a 100 lb propane tank?

7 months ago
2 Answers
  • A: Thank you for your inquiry. This heater can be used with any propane tank that is 20 lb or larger. Have a great day!
    7 months ago
    Helpful?

Q: Will the Mr Heater adapter and hose for a 15-pound tank be able to work with the MHVFDF20BFT F299320 unit? Thanks!

8 months ago
1 Answer
  • A: Thank you for your inquiry. For this heater we recommend the F273684 kit, which includes a hose, low pressure regulator, and the fittings to connect them to the heater. However, any low pressure regulator and hose will work. Have a great day!
    8 months ago
    Helpful?

Q: Can i use this heater at elevation of 4700 ft

8 months ago
1 Answer
  • A: Thank you for your inquiry. These heaters have an elevation limit of 4,500 ft. Above that, the heater will struggle to operate normally. Have a great day!
    8 months ago
    Helpful?

Q: I just installed this heater. But its burning an orange flame. I know thats mot right. Since the unit is new, does this mean it’s something on my tank outside?

9 months ago
1 Answer
  • A: Thank you for your inquiry. The exact color of your flame will vary based on a few things, such as the quality of the air around the heater and how clean the heater is. Seeing some orange flame is normal. Please feel free to reach out to us directly at 1-855-663-0660 if you have any more questions about the color of your flame. Have a great day!
    8 months ago
    Helpful?

Q: Will this operate on natural gas? If so, do I need any additional parts for it

9 months ago
1 Answer
  • A: Thank you for your inquiry. This dual fuel heater will run on either natural gas or propane, without the need for additional parts. Have a great day!
    9 months ago
    Helpful?

Q: Does it come with all the hooks up how do u hook prone to it

a year ago
1 Answer
  • A: Thank you for your inquiry. No, this heater doesn't come with the hose or regulator needed to run it. You'll need a low pressure propane regulator and a propane hose to connect this heater to a propane tank. Have a great day!
    a year ago
    Helpful?

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Reviews

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Overall Rating

4.2
4 out of 5 (80%) reviewers recommend this product

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1 to 4 of 14 Reviews .
1 – 4 of 14 Reviews
Sort by
Most Recent
Review 1
1 out of 5 stars.

Bad out of the box

5 months ago
Did not work, would not light. Customer service determined - bad thermocouple- TSC refunded no problem
SweepstakesYes
Review 1
5 out of 5 stars.

Great heater

8 months ago
Will buy again when needed, dual fuel propane or natural gas easy to switch between fuel on back of unit. Heats the area I'm in on the lowest setting.
Anonymous
Silver City, NM
Review 1
1 out of 5 stars.

Not happy with this unit.

8 months ago
After connecting this unit to propane, the pilot would not light. I removed the front and found the wire to the pilot button was disconnected. After reconnecting it, the pilot lit every time but I could not get the main burner to light and called for tech support. After talking for 10 minutes and trying several things, I was told to send it back to the factory for exchange. I'm still waiting for the new one.
SweepstakesYes

No, I do not recommend this product.

Response from Mr. Heater Product Expert:
8 months ago
Mr. Heater Product Expert
We are very sorry to hear about the problem with the heater. Please call us at 855-663-0660, and we will be glad to share any updated information about your replacement delivery. Enerco
Review 1
5 out of 5 stars.
a year ago
Very easy to operate best heater you can get
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