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Mr. Heater 20,000 BTU Vent Free Blue Flame Dual Fuel Heater

Marsoni M251S
Sale price$114.50
Pay 4 payments of $28.62 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Mr. Heater 20,000 BTU Vent Free Blue Flame Dual Fuel HeaterThe Mr. Heater Vent Free Dual Fuel system is designed with absolute safety in mind. Mr. Heater's patented vent free dual fuel system is composed of dual valves, dual oxygen depletion sensors, and a manual selector switch to ensure correct installation. Description 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
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Your Mr. Heater 20,000 BTU Vent Free Blue Flame Dual Fuel Heater orders ship within 1-2 business days.

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  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 1968 reviews
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Verified Purchase
Elaine Andrew
Lowell, US
★★★★★ 5
I would buy again!
Size: Large, Color: Burgundy
I bought this set for my son's high school graduation back in May! Came quickly, and it was exactly what we needed. It fit as described, and looked very nice during the ceremony, along w his cap n gown. Well worth the $ spent!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 10, 2025
A
Verified Purchase
April Russell
Whiting, US
★★★★★ 5
Nice
Size: Medium, Color: White
Fit well for my son, he’s 6ft and 170
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 22, 2026
C
Verified Purchase
Catherine Smith'Dent
Boise, US
★★★★★ 5
Love it
Size: X-Large, Color: Mint Green
Love the look, fits perfectly, great material.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
B
Verified Purchase
Brandee
Bozeman, US
★★★★★ 3
Ok product for average shape
Size: Large, Color: White
ok for the price but didn't work out for us. I had one guy whose body is thick and one who is thin. Couldn't get the set to fit on top and bottom at the same time, pants were a lil see through, but still decent quality and price.
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Reviewed in the United States on July 26, 2025
A
Verified Purchase
Amazon Customer
Bozeman, US
★★★★★ 5
Would order again!
Size: Small, Color: Royal Blue, Size: Small, Color: Royal Blue
This set was very affordable, lightweight and my son said it was comfortable. It came back fast and it was perfect for Easter Sunday! My son is 6’1 and he weighs 140 lbs.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026

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