Yes, this heater will run on a 20 lb. tank.
Mr. Heater 20,000 BTU Vent-Free Radiant Heater, Dual Fuel, Natural Gas, LP, MHVFDF20RTT

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Shipping:
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- Dual LP/NG Low Oxygen Depletion Systems
- Fail Safe Fuel Type Selector Knob
- Thermostat Control for Superior Temperature Control
- Battery Operated Electronic Spark Ignition
- Even radiant heat warms 700 sq. ft. of indoor spaces
See full description
Description
Key Specs
Reviews
Q & A
Warranty
Compare
Product Summary
What's Included
- (1) HEATER (1) AAA BATTERY (1) FEET & MOUNTING HARDWARE
Downloads
Features + Benefits
- Dual LP/NG Low Oxygen Depletion Systems
- Fail Safe Fuel Type Selector Knob
- Thermostat Control for Superior Temperature Control
- Battery Operated Electronic Spark Ignition
- Even radiant heat warms 700 sq. ft. of indoor spaces
- For use as supplemental heat in cold rooms, additions, Sun rooms, Cabins
- Indoor Safe with the Oxygen Depletion System
- Can be wall mounted or free standing, feet and hardware included
- Optional Blower item# 52571 (sold separately)
Key Specs
| Attribute | Specification |
|---|---|
item# | 6609600 |
Brand | Mr. Heater |
Manufacturer's Warranty | 1 year limited warranty |
Ship Weight | 25.8 LB |
Heat Output | 20,000 Btu/hour |
Heating Capability | 700 ft² |
Heat Type | Radiant |
Hardwired | No |
Vent-Free | Yes |
Assembled Width | 20.25 in |
| Attribute | Specification |
|---|---|
Assembled Height | 25.25 in |
Assembled Depth | 9.25 in |
Remote Included | No |
Blower Included | No |
Thermostat Included | Yes |
Needs Direct Venting | No |
Fuel Consumption | 1.389 GPH |
Thermal Cutoff Safety Device | No |
Product Weight | 21.4000 lb |
Dimensions L x W x H (in.) | 9.25 x 202.25 x 25.25 in |
Reviews
Questions & Answers
Questions
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· 9 months ago
will this heater work on a 20lb a 5 gallon tank?
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ProductExpert23· 8 months ago
Helpful?
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Mr. Heater Product Expert· 8 months ago
Thank you for your inquiry. Yes, this heater will run on a 20 lb tank. Have a great day!
Helpful?
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· 9 months ago
Does this heater require electricity
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ProductExpert18· 9 months ago
This heater doesn't require electricity.
Helpful?
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Mr. Heater Product Expert· 9 months ago
Thank you for your inquiry. No, this heater doesn't require electricity. Have a great day!
Helpful?
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· 10 months ago
Where can I buy blower fitting heater?
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Mr. Heater Product Expert· 10 months ago
Thank you for your inquiry. The blower kit for this heater is item F299201 and is available most places that sell the heater. Have a great day!
Helpful?
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ProductExpert10· 10 months ago
The Mr. Heater 20,000 BTU Vent‑Free Radiant Heater, Dual Fuel (Natural Gas/LP) is sold without a blower — the optional blower (item #52571) must be purchased separately.
Helpful?
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· 10 months ago
Can I inset the heater into a wall cavity made up of Dry Wall and wood studs? It would be inset about 1/2 - 2/3 of the depth of the heater and have about 6"-8" of space between the side wall and bottom wall and of course be mounted to the back.
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ProductExpert29· 10 months ago
This heater is not approved for recessed installation; it must be fully exposed and maintain at least 10" side clearance.
Helpful?
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Mr. Heater Product Expert· 10 months ago
Thank you for your inquiry. This heater requires at least 10" of clearance from the sides of the heater. Have a great day!
Helpful?
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· 11 months ago
Does it come with attachment and propane tank
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Mr. Heater Product Expert· 11 months ago
Thank you for your inquiry. No, this stove does not come with a hose or propane tank. Have a great day!
Helpful?
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ProductExpert29· 11 months ago
This model does not include a propane tank or any fuel attachments. The heater is dual-fuel and can be connected to either natural gas or propane; however, the propane tank and any required fuel connections must be purchased separately.
Helpful?
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· 8 months ago
What is needed to connect a 20 pound propane tank
1 answer-
ProductExpert18· 8 months ago
For this heater you'll need a low-pressure propane regulator and a hose. We recommend the F273684 kit, but any matching hose and regulator will do.
Helpful?
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· 8 months ago
Does this heater have a hose? If not what fitting or hose does it need? Does it have an internal pressure regulator or does the hose need a regulator?
1 answer-
ProductExpert18· 8 months ago
This heater will need a hose. If you're running it on natural gas, you will likely not need a regulator, but propane will require a low-pressure regulator. We recommend the F273684 kit for this, but any hose and low-pressure propane regulator would work.
Helpful?
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· 8 months ago
What type of gas line fits this MHVFDF20RTT"
1 answer-
ProductExpert18· 8 months ago
The heater's gas inlet is a 3/8" female flare fitting.
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Anonymous· 9 months ago
how long burn time on 20 gal. tank ?
1 answer-
ProductExpert18· 9 months ago
This heater burns about 1 lb/hr of propane while it's running. Exactly how often it's running will depend on the thermostat setting it's on and the environment that it's placed in.
Helpful?
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· 9 months ago
Is it propane ready
1 answer-
ProductExpert18· 9 months ago
The dual fuel heaters come set up for propane by default.
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Warranty
Manufacturer's Warranty
1 year limited warranty
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Specifications
20,000 Btu/hour
25,000 Btu/hour
17,000 Btu/hour
11,000 Btu/hour
700 ft²
825 ft²
570 ft²
375 ft²
Radiant
Convection
Convection
Convection
No
No
No
No
Yes
No
No
No
20.25 in
32.28 in
27.36 in
17.36 in
25.25 in
26.3 in
20 in
20 in
9.25 in
8.74 in
6.61 in
6.61 in
No
No
No
No
No
No
No
No
Yes
No
No
No
No
Yes
Yes
Yes
1.389 GPH
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-
-
No
-
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21.4000 lb
84.0000 lb
58.0000 lb
40.0000 lb
9.25 x 202.25 x 25.25 in
8.74 x 32.28 x 26.3 in
6.61 x 27.36 x 20.0 in
6.61 x 17.36 x 20.0 in
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3/8 in
3/8 in
3/8 in
-
5
-
5
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See All Mr. Heater Dual-Fuel Wall Heaters
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