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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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  • 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
4.8 ★★★★★
Based on 778 reviews
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Product Reviews
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Verified Purchase
Storyteller
Natrona Heights, US
★★★★★ 5
Great Filter Set for Allergy‑Sensitive Families and MPG‑Minded Drivers
Size: 21-25 TLX, 18-25 Odyssey
I bought this set because I prefer handling routine maintenance myself, especially cabin and engine air filters, rather than paying dealership prices for simple jobs. The package included one cabin air filter and one engine air filter, plus a full backup set for the next service interval. Both filters installed easily and fit the 2018 Honda Odyssey exactly as expected. No trimming, no forcing, and no alignment issues. The cabin filter seated cleanly in the glove‑box housing, and the engine filter dropped into the airbox without any airflow restriction or sealing gaps. This setup is ideal for Odyssey owners who want to maintain optimal cabin air quality—especially helpful for families with allergies—and for drivers looking to keep engine airflow unrestricted for the best possible MPG and throttle response. It may not be necessary for anyone who relies exclusively on dealership service or doesn’t perform their own maintenance. Overall, this is a straightforward, high‑value filter set that installs cleanly and supports both air quality and engine efficiency for DIY‑minded Odyssey owners.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
T
Verified Purchase
Tom Crum
Bozeman, US
★★★★★ 5
Auto air filters
Size: 16-22 Pilot, 14-16 MDX
Perfect - product great - installation easy and much cheaper than having dealer or auto shop do it ——
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
I
Verified Purchase
Intrepid Air
Lake Worth, US
★★★★★ 5
Solid Filter at a solid price
Item Package Quantity: 1
I am actually pretty impressed with it overall. The filter was sturdy and firm. And a perfect fit for my vehicle.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
J
Verified Purchase
jo
Carnegie, US
★★★★★ 5
air filter for Toyota
Item Package Quantity: 1
This air filter fits perfectly and is a good replacement product. It was easy to install and the price was right.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
J
Verified Purchase
Jon
Carnegie, US
★★★★★ 5
Right parts, fair price, quick ship. Great sale.
Item Package Quantity: 1
All first rate parts that fit perfectly
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026

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