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Mr. Heater F215100 MH4B Little Buddy 3800-BTU Indoor Safe Propane Heater With Portable|Low-Oxygen Safety Shutoff|Tip-Over Protection|Lightweight, Medium , Black/Red

4.5 4.5 out of 5 stars 7,778 ratings

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Heater

Purchase options and add-ons

Brand Mr. Heater
Special Feature Portable, Low-Oxygen Safety Shutoff, Lightweight, Tip-Over Protection
Color Black/Red
Form Factor Cabinet
Indoor/Outdoor Usage Outdoor, Indoor
Power Source
propane
Heating Method
Radiant
Item Weight
16 ounces
Heat Output
3800 British Thermal Units

About this item

  • Indoor-safe portable propane heater for rooms up to 95 square feet. THIS UNIT IS NOT INTENDED FOR GOLF CART USE OR FOR MOTORIZED VEHICLES.
  • Continuous odor-free, 45-degree heating angle. Maximum Elevation (Ft) 7000 Feet. Automatic low oxygen shut-off system (ODS). Perfect solution for heating small enclosed spaces like tents up to 95 square feet
  • Simple on/off buttons; uses 1-pound disposable propane cylinder (not included). Run time at minimum btu and maximum btu is 5.6 hours. Do­ not­ operate­ heater­ in­ any ­moving­ vehicle. This ­heater ­requires ­a­ vent­ area­ of­ 4­ square­ inches­ minimum ­for­ adequate ventilation ­during­ operation
  • Low-oxygen sensor and accidental tip-over switch with auto shut-off for safety.THE USE OF UN-AUTHORIZED ACCESSORIES/ATTACHMENTS WITH THIS HEATER ARE EXPRESSLY PROHIBITED, MAY CAUSE SERIOUS INJURY, AND WILL VOID THE WARRANTY.
  • Recommended for emergency heat, tents, campers, workshops, job sites, porches, patios, decks, garages, storage buildings, picnics, tailgate parties, construction trailers, sporting events, barns, sheds, hunting blinds, shelters and ice fishing shanties

Customer ratings by feature

Safety Features
4.4 4.4
Easy to use
4.4 4.4
For small spaces
4.3 4.3
Value for money
4.3 4.3

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$52.79
Get it as soon as Monday, Apr 1
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$36.36 ($1.11/Item)
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Mr. Heater F215100 MH4B Little Buddy 3800-BTU Indoor Safe Propane Heater With Portable|Low-Oxygen Safety Shutoff|Tip-Over Protection|Lightweight, Medium , Black/Red
Mr. Heater F215100 MH4B Little Buddy 3800-BTU Indoor Safe Propane Heater With Portable|Low-Oxygen Safety Shutoff|Tip-Over Protection|Lightweight, Medium , Black/Red
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Price-10% $52.79
Typical:$58.97
-6% $149.99
List:$159.99
-5% $34.99
Typical:$36.99
-20% $39.99
Typical:$49.99
-18% $82.00
List:$99.99
Delivery
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it Apr 4 - 11
Customer Ratings
Easy to use
4.4
4.6
4.4
4.1
Value for money
4.3
4.4
4.0
Heat output
4.2
4.5
4.8
Sold By
Amazon.com
Amazon.com
Hotdevil
Camplux
Brown Design and Sales LLC
power source
propane
gas powered
gas powered
gas powered
Gas Powered
heating method
Radiant
Radiant, Convection
Radiant
Radiant
Radiant
heating coverage
95 sq. ft.
450 square feet
100
heat output
3800 btus
18000 btus
6200 btu per hour per foot per fahrenheit
15000 btus
4000 btu per hour per foot per fahrenheit
weight
1 pounds
15 pounds
2.23 pounds
6 pounds

From the manufacturer

Little Buddy;mr heater;portable heater;portable radiant heater;camping heater
Little Buddy

Little Buddy;MH4B;mr heater;portable heater

Little Buddy;MH4B;mr heater;portable heater

Little Buddy;MH4B;mr heater;portable heater

Heavy-duty grill

Comfortable, ergonomic handle

Solid 8" base provides stability

Little Buddy;mr heater;portable heater;adjustable heater;heater with handle;fishing heater
Little Buddy;MH4B Portable Buddy;MH12BX Hunting Buddy:MH12HB Big Buddy;MH18B Buddy Flex;MH11BFLEX
Learn More Learn More Learn More Learn More Learn More
Customer Reviews
4.5 out of 5 stars
7,778
4.7 out of 5 stars
26,153
4.7 out of 5 stars
985
4.6 out of 5 stars
2,971
4.4 out of 5 stars
992
BTU 3,800 BTU 4,000 / 9,000 BTU 6,000 / 12,000 BTU 4,000 / 9,000 / 18,000 BTU 8,000 - 11,000 BTU
Heats up to 95 sq. ft. 225 sq. ft. 300 sq. ft. 450 sq. ft. 275 sq. ft.
Run time 5.6 hours 5.4 hours on low / 2.4 hours on high 3.6 hours on low / 1.8 hours on high 10.8 hours on low / 4.8 hours on medium / 2.4 hours on high 3.5 hours on low / 2 hours on high
Ignition Piezo Piezo Electric Piezo Electric
Tank Size 1 lb. cylinder 1 lb. cylinder 1 lb. cylinder (2) 1 lb. cylinders 1 lb. cylinder
20 lb. tank hook up option
Swivel regulator
Indoor safe

Product guides and documents

Product information

Warranty & Support

Product Warranty: For warranty information about this product, please click here. [PDF ]

Feedback

Mr.

Mr. Heater F215100 MH4B Little Buddy 3800-BTU Indoor Safe Propane Heater With Portable|Low-Oxygen Safety Shutoff|Tip-Over Protection|Lightweight, Medium , Black/Red


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Product Description

Mr. Heater offers the latest evolution in portable heating with the Portable Little Buddy Propane Heater. Use it in garages, tents, workshops, cabins, porches, patios, or hunting blinds to heat up to 95 sq. ft.. Equipped with a low-oxygen shut-off pilot system and accidental tip-over shutoff for indoor safety and one heat setting of 3,800 BTU/hr. allowing you to control comfort level. Accidental tip-over safety shutoff. Lightweight, easy to carry. *WE ARE NOT ABLE TO SELL THIS PRODUCT TO CANADA AND MASSACHUSETTS.

Customer reviews

4.5 out of 5 stars
4.5 out of 5
7,778 global ratings

Customers say

Customers like the ease of use, outdoor use, and efficiency of the camping heater. For example, they mention it's simple to set up and operate, great for fall camping trips, and perfect for tent camping. That said, some disagree on safety shutoff, quality, safety, and size.

AI-generated from the text of customer reviews

696 customers mention495 positive201 negative

Customers like the efficiency of the product. They mention that it works well, is easy to use, and has simple functions. Some say that it's a good, compact portable heater that burns clean and has no propane smell.

"Easy to light and portable. The heater has great output...." Read more

"...It is small, easy to light (you only need to hold the ignite button for like 5~10 sec, not 30sec)..." Read more

"...I use it inside my van, and the O2 sensor works very well and I have to leave a window open a couple inches or it will shut off which is good...." Read more

"In extreme conditions, this heater is difficult to start and not very efficient, you practically have to have it a few inches from you to feel the..." Read more

688 customers mention557 positive131 negative

Customers like the heat of the product. They say it's great for heating small rooms, and it generates a lot of heat. The heater is also great for warming fingers and making sleeping areas toasty fast. Customers also mention the product is a great option for staying warm in a low-space setting. Overall, customers are satisfied with the heat provided by the product and recommend it to others.

"...40s and 50s (Fahrenheit), this heater sits on the floor nearby and keeps me warm at a VERY reasonable operating cost...." Read more

"...hours not 6 and I don’t leave it on after I go to bed, but this keeps me toasty warm even below freezing. It can get too hot after about 3-4 hours...." Read more

"...-story living room, and this Mr. Heater Little Buddy product heated the room perfectly - all by itself.5...." Read more

"Kept my tent comfortably warm on a night in the teens...." Read more

147 customers mention144 positive3 negative

Customers find the product super easy to use and set up. They also say it works great, has good instructions, and starts up right away. Customers also mention that they have had no difficulties with the ignition or the heat output. They say the heater is convenient and useful.

"...600 square foot garage actually got warm inside! The easy operation and safety features are sensibly designed, and it seems to be well-made and..." Read more

"Simple to set up & operate. Solid and rugged. Super portable and easy to carry. Well built, not shoddy or flimsy craftsmanship...." Read more

"...I have friends that have the larger version and like it also. Great convenience and very durable. Also easy to use!" Read more

"Simple functions. Hook up and push a button. Wish it had a temperature control. Or atleast like high/low. Great unit." Read more

98 customers mention91 positive7 negative

Customers like the outdoor use of the product. They mention it's great for fall camping trips, tent camping, and hunting. It's also portable and has been a great addition to their active outdoor lifestyle. Overall, customers say it has great utility for hunting, camping, or workshop use. Customers also say it really opened up their camping season.

"...Perfect for vanlife!" Read more

"Perfect for indoor small areas or a tent or camper. Very safe. Good value." Read more

"Definitely extremely happy with this little heater. Great for my Rv. Doesn’t take up a lot of space...." Read more

"This is great for my fall camping trips. Great for use in my camper." Read more

177 customers mention112 positive65 negative

Customers are mixed about the size of the product. Some mention that it's the perfect size to use on their back patio for those early mornings, and that it fits perfectly in that bag. They also say that it is compact, small enough to store easily, and great for their duck boat. However, others say that the size is far too big for that, and the base needs to fit a little better.

"...It can get too hot after about 3-4 hours. Small enough to store easily and the propane cans are readily available just about anywhere...." Read more

"...Perfect for one man ice hut. Only complaint is the base needs to fit a little better ...." Read more

"bought this just in case we get a power outage during winter.It is small, easy to light..." Read more

"The size was great for my duck boat and my 2 buddies." Read more

111 customers mention75 positive36 negative

Customers are mixed about the safety of the product. Some mention that it has great safety features, works well, and is safe enough to use anywhere. However, others say that the canister is a safety hazard, the switches are a little sensitive, and the tip-over switch is very touchy.

"...The easy operation and safety features are sensibly designed, and it seems to be well-made and reliable...." Read more

"...02 sensor, like I said, and tip over feature work perfectly. PEACE ON EARTH PEOPLE🥰..." Read more

"...Note that the tip over control is sensitive and it shut off as I carried it. Outdoors it provided heat in the immediate vicinity next to me...." Read more

"...It has a tip over valve built in...." Read more

109 customers mention46 positive63 negative

Customers are mixed about the quality of the product. Some mention that the construction is very solid, and it's dependable. However, others say that it'll break after a few months of use.

"...For 15 minutes. I thought darn it, the thing is broken. And we're not staying a second night if this thing is broken...." Read more

"...features are sensibly designed, and it seems to be well-made and reliable. I recommend this product for heating a small open (or enclosed) space." Read more

"Works if there is no wind at all, it blows out to easy, even if there is a breeze it's goes our. But when it's on its on...." Read more

"...Super portable and easy to carry. Well built, not shoddy or flimsy craftsmanship. Only short comings are no temperature (low, medium or high) control." Read more

107 customers mention41 positive66 negative

Customers are mixed about the safety shutoff. Some mention that it does shut off, while others say that it turns off on its own in low ventilation. The O2 sensor and tip-over shut off are important features. That said, some say that the heat output is excessive, requiring frequent start-ups and shutdowns.

"...shelter and find that the heat output is excessive, requiring frequent start-ups and shutdowns. A variable heat ouput feature would be great." Read more

"...It has the auto shutoff feature, I just feel like it should come with a wider base for the propane bottle." Read more

"...But the propane doesn't last as long as I had hoped. It has a tip over valve built in...." Read more

"...Note that the tip over control is sensitive and it shut off as I carried it. Outdoors it provided heat in the immediate vicinity next to me...." Read more

Great for vanlife!
5 Stars
Great for vanlife!
I live in a van traveling through all kinds of weather and have tried several other heater options but this is the best that I’ve tried. ventilation (half inch window opening recommended) and buying a carbon monoxide alarm are VIP safety precautions. The 16 oz cans of fuel only last about 5 hours not 6 and I don’t leave it on after I go to bed, but this keeps me toasty warm even below freezing. It can get too hot after about 3-4 hours. Small enough to store easily and the propane cans are readily available just about anywhere. Perfect for vanlife!
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Reviewed in the United States on January 12, 2024
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Reviewed in the United States on March 4, 2024
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5.0 out of 5 stars Great for vanlife!
Reviewed in the United States on March 4, 2024
I live in a van traveling through all kinds of weather and have tried several other heater options but this is the best that I’ve tried. ventilation (half inch window opening recommended) and buying a carbon monoxide alarm are VIP safety precautions. The 16 oz cans of fuel only last about 5 hours not 6 and I don’t leave it on after I go to bed, but this keeps me toasty warm even below freezing. It can get too hot after about 3-4 hours. Small enough to store easily and the propane cans are readily available just about anywhere. Perfect for vanlife!
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Reviewed in the United States on January 20, 2024
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Sergio Reyes
5.0 out of 5 stars Increíble para camping
Reviewed in Mexico on April 25, 2022
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Blackjack
5.0 out of 5 stars Quite a large unit. But brilliant.
Reviewed in the United Kingdom on March 9, 2020
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One person found this helpful
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Dimitri Raptis
5.0 out of 5 stars Safety comes first and is achieved by this product
Reviewed in the United Kingdom on April 13, 2020
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2 people found this helpful
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Armando v
5.0 out of 5 stars MUY BUENO
Reviewed in Mexico on January 4, 2018
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One person found this helpful
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Oscar Cerda
5.0 out of 5 stars Que el articulo cumpla con lo que requiero
Reviewed in Mexico on January 5, 2019
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