Name: Mr. Heater Tough Buddy 9000 -BTU Indoor/Outdoor Portable Radiant Propane Heater
Brand: Mr. Heater
SKU: 3678478
Price: 109 USD
Availability: InStock
Rating: 4.5 (658 reviews)

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North America's most popular portable propane heater! This patented radiant 4,000 and 9,000 BTU propane heater connects directly to a 1 lb. cylinder and is the perfect solution for heating workshops, tents or ice-shanty's up to 225 sq ft. The Lowe's exclusive 9BX features a convenient fold-down handle and an easy start Piezo ignition system. And, with Mr heater's advanced safety detection systems including the Low Oxygen Safety system and apex 30 degree tip-over detection, you can be confident and comfortable in any weather conditions. The Portable Buddy also features a patented swivel regulator for easy tank installation as well as the ability to connect to a remote 20lb tank for hours more safe comfortable heat.

Radiant propane heater in a portable, indoor safe design
Integrated Life Safety System includes tip-over shutdown system, patented cross thread protection system, emergency low oxygen safety system, and is designed with flame retardant materials
Exclusively at Lowe's
High and low heat settings: 9,000-4,000 BTUs
Approximate 2.4 hour run time on high and 5.4 hour on low with 1 lb cylinder
Piezo igniter - no electricity or matches required
Swivel regulator connects directly to 1 lb propane cylinder (sold separately)
Adapts to a remote 20 lb propane cylinder with a hose and filter (sold separately)
Ideal for tents, campsites, porches, tailgating, hunting, ice fishing, garages, workshops, job sites, and power outages

General
Type	Radiant	Color/Finish Family	Red
Ignition Type	Piezo	Maximum BTUs	9000
Use Location	Indoor/Outdoor	Maximum Heating Area (Sq. Feet)	225
Series Name	Tough Buddy

Dimensions
Assembled Depth (Inches)	8.63	Assembled Weight (lbs.)	9.85
Assembled Height (Inches)	14.15	Heating Area Range (Sq. Ft.)	Less than 1000
Assembled Width (Inches)	13.91

Features
Max Operating Hours on 40-Lb. LP Tank	96	Overheat Shut-Off	No
Max Operating Hours on 100-Lb. LP Tank	0	Oxygen Depletion Sensor	Yes
Assembly Required	No	Hose and Regulator Included	No
Portable	Yes	Auxiliary Power Outlet	No
Thermostat	No	Variable Heat Settings	Yes
Tip-Over Safety Switch	Yes	Max Operating Hours on 20-Lb. LP Tank	48
Cordless	Yes	Max Operating Hours on 1-Lb. LP Tank	6

Compatibility
Compatible Tank Sizes	1-lb. or 20-lb.

Warranty
Warranty	1-year limited

Certifications
CA Residents: Prop 65 Warning(s)	Prop 65 WARNING(S) -	OMNI Safety Listing	No
Safety Listing	CSA safety listing	PFS Safety Listing	No

Miscellaneous
UNSPSC	40101600

Check out the Best Selling Propane Heaters on Lowes.com

Review

4.5 out of 5

658 Reviews

87% Recommend this product

Ratings may include incentivized customer reviews.

Read All Reviews

+ 13

What Customers Are Saying

This portable radiant heater is praised for its effective and efficient heating capabilities, making it suitable for various indoor and outdoor applications. Customers highlight its ease of use, good heat output, and portability as key benefits. However, some users have experienced issues with the heater not staying lit or running out of fuel quickly, especially when using smaller propane canisters. Recommendations include using a larger propane tank and optional accessories for improved fuel efficiency. Overall, the heater is widely regarded as a reliable and versatile heating solution when used and maintained properly.

Customer review summary generated by AI, including incentivized reviews.

658 Customer Reviews

Sort By

Ease of use.

Would Recommend

This product is the perfect size for in home and outside. It's useful in the colder months when I do market's outside. Super easy to use and extremely durable. Would highly recommend.

JavajamiMay 16, 2026
From Tough Buddy 9000 -BTU Indoor_SLASH_Outdoor Portable Radiant Propane Heater Verified Purchaser

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Tough buddy for life

Keeping you warm

JanjoMarch 30, 2026
From Tough Buddy 9000 -BTU Indoor_SLASH_Outdoor Portable Radiant Propane Heater Verified Purchaser

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Pick up was quick and easy!

Would Recommend

Thank you to the Missoula MT Lowes for being so quick and helpful with a heat source during a recent prolonged power outage! Your team was quick and pleasant!

GanieanysMarch 17, 2026
From Buddy FLEX Propane Heater 11000 -BTU Indoor_SLASH_Outdoor Portable Radiant Propane Heater Verified Purchaser

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Fire Hazard

Would Not Recommend

The single bottle unit made a load pop, it then ignited into a ball of fire!! If you own one, do not operate without monitoring the unit.

MichaelMarch 12, 2026
From Tough Buddy 9000 -BTU Indoor_SLASH_Outdoor Portable Radiant Propane Heater

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86bG93ZXM/fd4a9dc9-91df-5ad4-af99-193b6a24df61

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86bG93ZXM/a0f642f5-3a69-577d-b2e9-3f536f1d2755

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Response from Mr. Heater Product Expert

We are very sorry for the strange experience you had with our product. When propane appliances do things they are not supposed to do, it can be quite...

Mr. Heater Product ExpertMarch 16, 2026

Enerco

Nice unit

Would Recommend

Good value for price. Needed indoor option and this fit the need.

JbosMarch 3, 2026
From Tough Buddy 9000 -BTU Indoor_SLASH_Outdoor Portable Radiant Propane Heater Verified Purchaser

Was this Review Helpful ?

Works very well, easy to operate

Would Recommend

Works very well, easy to operate

DoubleDFebruary 27, 2026
From Tough Buddy 9000 -BTU Indoor_SLASH_Outdoor Portable Radiant Propane Heater Verified Purchaser

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Great heater

Would Recommend

Great heater for indoor use.

FuzzyFebruary 26, 2026
From Tough Buddy 9000 -BTU Indoor_SLASH_Outdoor Portable Radiant Propane Heater Verified Purchaser

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Heats area quickly

Would Recommend

Easy to set up and use

KateFebruary 26, 2026
From Tough Buddy 9000 -BTU Indoor_SLASH_Outdoor Portable Radiant Propane Heater Verified Purchaser

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Its light weight and easy to move

Would Recommend

The ease of attaching the propane cylinder

rita2redFebruary 22, 2026
From Tough Buddy 9000 -BTU Indoor_SLASH_Outdoor Portable Radiant Propane Heater Verified Purchaser

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		Name	Current Item Mr. HeaterTough Buddy 9000 -BTU Indoor/Outdoor Portable Radiant Propane Heater
		Ratings	658
		Type	Radiant
		Maximum BTUs	9000
		Thermostat
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