Big Buddy heaters are a trusted heating solution for both indoor and outdoor spaces, offering powerful warmth, portability, and fuel efficiency.
Designed to operate on propane, these heaters are popular for camping, garages, workshops, RVs, patios, and emergency home heating.
With advanced safety features like low-oxygen shutoff sensors, tip-over protection, and adjustable heat settings, Big Buddy heaters provide reliable comfort in cold conditions.
Choosing the right model ensures efficient heat coverage, easy operation, and peace of mind. This guide highlights the top 10 best Big Buddy heaters to help you find the ideal option for your heating needs.
10. Mr. Heater MH9BX Portable Buddy Heater
The Mr. Heater MH9BX Portable Buddy Heater is the perfect companion for any off‑grid adventure or small‑space heating need.
Whether you’re warming a camper, cabin, porch, garage, barn, shed, or even a hunting blind, this compact unit lets you dial in just the right amount of heat with three selectable settings—high (9,000 BTU), medium, and low (4,000 BTU).
It covers up to 225 sq ft, delivering rapid warmth from a 1‑lb or 20‑lb propane cylinder (hose not included).
A single‑turn control knob with a reliable piezo spark makes ignition effortless, while the built‑in Automatic Oxygen Depletion Sensor (ODS) automatically shuts the heater off if it tips over, adding an essential layer of safety.
The swivel regulator lets you switch from disposable 1‑lb tanks to a remote 20‑lb supply, and the rugged, easy‑grip handle with a heavy‑duty safety wire guard protects the heater during transport.
On low, the unit runs up to six hours; on high, up to three hours—enough time to keep you comfortable wherever you set up camp.
Pros
- Three heat settings for custom comfort
- Works with 1‑lb or 20‑lb propane tanks
- ODS safety shutoff prevents carbon‑monoxide risk
- Easy‑grip handle and durable wire guard
- Up to 6 hours runtime on low
Cons
- No hose or filter included
- Propane cylinder must be purchased separately
- Not suitable for large indoor spaces
9. Comfort Gear Portable Propane Heater
The Comfort Gear Portable 10000 BTU Propane Heater is a compact, freestanding heat source that delivers rapid infrared warmth wherever you need it.
Choose the 5,500 BTU or 18,000 BTU setting to comfortably heat up to 450 sq ft—perfect for a patio, garage, campsite, or even a small work area.
Its sturdy base and protective guard keep it stable, while the tip‑over shut‑off and built‑in Oxygen Depletion Sensor (ODS) add an extra layer of safety for indoor or tent use.
Switching tanks is effortless: connect two 1‑lb disposable cylinders or, with the optional hose, a 20‑lb tank for longer outdoor sessions.
One‑button piezo ignition gets you warm in seconds, and the low‑heat setting can run up to nine hours on two 1‑lb tanks.
Quiet, efficient, and rugged, this heater is ready for camping trips, job sites, or chilly evenings around a fire pit—without the need for electricity or matches.
Pros
- Powerful heat up to 450 sq ft
- Tip‑over shut‑off for safety
- One‑button piezo ignition
- Dual‑tank flexibility (1 lb & 20 lb)
- Quiet operation, no fan noise
Cons
- Extension hose required for 20 lb tank
- Not ideal for large spaces
- Requires ventilation indoors
8. Mr. Heater MH12B Portable Heater
The Mr. Heater MH12B Hunting Buddy is a rugged, camouflage‑finished propane heater built for the backcountry and any outdoor workspace.
It delivers a powerful 6,000‑ to 12,000‑BTU radiant heat output, comfortably warming areas up to 300 sq ft.
Designed for clean‑burning performance, it operates at nearly 100 % efficiency while automatically shutting off if tipped, if the pilot light extinguishes, or if low‑oxygen conditions are detected—providing peace of mind in remote settings.
Key Features
– 6,000‑12,000 BTU output for 300 sq ft coverage
– Approved for outdoor use; clean‑burning, almost 100 % efficient
– Auto shut‑off for tip‑over, pilot loss, or low‑oxygen detection
– Fold‑down handle and swivel‑out regulator for easy transport and setup
– Connects to standard propane tank (tank not included)
Pros
- Powerful heat for large outdoor areas
- Nearly 100 % combustion efficiency
- Automatic safety shut‑off mechanisms
- Portable with fold‑down handle
- Camouflage finish blends into wilderness
Cons
- Altitude limit above 7,000 ft may trigger shut‑off
- Propane tank sold separately
This heater is an ideal companion for hunters, campers, and anyone needing reliable warmth in the field, combining robust performance with essential safety features.
7. Camplux Portable Propane Heater (12000 BTU)
The CAMPLUX Portable Propane Heater is a rugged 12,000 BTU buddy heater built for both outdoor adventures and well‑ventilated indoor spaces.
Its ceramic plate burner delivers up to six hours of steady warmth from a standard 1 lb propane cylinder (or a 20 lb tank, hose not included), making it perfect for camping trips, ice‑fishing cabins, picnics, patios, and even construction sites.
Weighing just 9.4 lb, the unit features an ergonomic grip handle with an integrated LED light, so you can set it up safely after dark.
A single‑turn control knob with a piezo igniter lights the burner in under a minute—no external flame or batteries required.
Safety is front‑and‑center: an automatic ODS (oxygen‑depletion sensor) and tip‑over shut‑off instantly cut the gas if oxygen levels drop or the heater is knocked over, protecting you in enclosed or poorly ventilated areas.
With zero assembly needed, you simply attach a propane tank, turn the knob, and enjoy instant radiant heat wherever you need it.
Pros
- 12,000 BTU rapid heat output
- Built‑in LED for night use
- Automatic ODS and tip‑over shut‑off
- Lightweight, easy‑carry design
- One‑step ignition, no batteries
Cons
- No built‑in fuel tank
- Requires well‑ventilated area
- Hose not included with tank
6. Heat Hog 9,000 BTU Portable Propane Heater
The Heat Hog 9,000 BTU Portable Propane Radiant Space Heater delivers instant, reliable warmth wherever you need it—whether you’re working in the garage, tailgating with friends, ice‑fishing, hunting, camping, or on a boat.
With up to 9,000 BTUs of radiant output, it comfortably heats spaces of up to 225 sq ft, and it runs on a 1‑lb LP cylinder or a 20‑lb propane tank (accessory hose included), so you never have to rely on electricity.
Its tiltable design lets you aim the heat precisely, while the curved‑plaque technology spreads warmth across a 33‑degree wider area than a standard heater.
Built for safety, the unit features a rugged guard, an automatic tip‑over switch, and an Oxygen Depletion Sensor (ODS) that shuts the heater off if oxygen levels drop or the unit falls.
The Heat Hog line also offers 4,000 BTU and 18,000 BTU models, giving you the right size for any indoor or outdoor occasion.
Pros
- Portable, no‑electricity operation
- Heats up to 225 sq ft quickly
- Tiltable with 33° wider coverage
- Built‑in tip‑over and ODS safety
- Compatible with 1‑lb or 20‑lb tanks
Cons
- Requires propane refills
- Not ideal for large commercial spaces
- Open flame may need ventilation
5. Mr. Heater F274805 Portable Heater
The Mr. Heater F274805 Big Buddy Propane Tank Powered Heater comes as a convenient 2‑pack, perfect for anyone who needs reliable heat both inside and out.
Each unit runs on standard 20‑lb propane tanks and delivers a selectable output of 4,000, 9,000 or 18,000 BTU, allowing you to comfortably warm up to 450 sq ft—whether it’s a garage, a large camping tent, or a backyard shelter.
Designed for effortless operation, the heater features an easy‑start four‑position control, a fold‑down handle for transport, and a swivel‑out fuel connection that makes hookup a breeze.
The expansive heating surface distributes warmth evenly, while built‑in safety systems—including an Oxygen Depletion Sensor (ODS) and tip‑over detection—automatically shut the unit off if oxygen levels drop or the heater is knocked over.
With two units in the bundle, you can set one up in a living space and keep the other ready for outdoor adventures, ensuring you stay warm wherever you go.
Compact, durable, and engineered for both indoor and outdoor environments, the Big Buddy is the go‑to portable heating solution for campers, DIY‑ers, and anyone needing fast, dependable heat.
Pros
- Dual‑heater 2‑pack convenience
- Adjustable 4,000‑18,000 BTU output
- Indoor and outdoor safe use
- Easy‑start four‑position control
- ODS and tip‑over safety features
Cons
- Requires 20‑lb propane tank
- No built‑in thermostat control
- Heavier than electric models
4. Mr. Heater Big Buddy Propane Heater
The Mr. Heater Portable Big Buddy Propane Heater paired with its rugged Big Buddy Carry Case delivers reliable, on‑the‑go warmth for any indoor‑safe environment—from a garage workshop to a spacious camping tent.
Choose from three heat outputs—4,000 BTU, 9,000 BTU, or 18,000 BTU—to comfortably warm up to 450 sq ft.
The unit’s four‑position easy‑start control, fold‑down handle, and swivel‑out fuel connection make setup a breeze, while the large heating surface maximizes efficiency.
Safety is built in: an Oxygen Depletion Sensor (ODS) and tip‑over detection automatically shut the heater off if oxygen levels drop or the unit is knocked over, giving you peace of mind during long stays.
The included carry case protects the heater during transport and storage, turning this bundle into the ultimate portable heating solution for work sites, outdoor events, or emergency preparedness.
Pros
- Multiple BTU settings
- Easy‑start four‑position control
- Fold‑down handle for portability
- ODS & tip‑over safety sensors
- Durable carry case included
Cons
- Requires propane canisters
- Not suitable for open‑air use
- Heavier than electric models
3. Mr. Heater MH9BX Portable Propane Heater
The Mr. Heater MH9BX is a compact, Massachusetts/Canada‑approved propane heater built for rugged outdoor use.
It delivers a flexible output of 4,000 – 9,000 BTU, making it ideal for warming spaces up to 225 sq ft such as patios, campsites, or work sites.
Its clean‑burning design approaches 100 % efficiency, so you get maximum heat with minimal fuel waste.
The unit features an automatic safety system that shuts off the burner if it’s tipped, the pilot light goes out, or low‑oxygen levels are detected—providing peace of mind in any environment.
A fold‑down handle and swivel‑out regulator make transport and hookup to a standard propane tank (tank not included) quick and easy.
At its minimum setting, the heater runs roughly 5.6 hours on a single tank. Note that at altitudes above 7,000 ft the heater may automatically shut off, and using any unauthorized accessories will void the warranty and could cause serious injury.
Pros
- Adjustable 4,000‑9,000 BTU output
- Heats up to 225 sq ft efficiently
- Auto shut‑off for tip‑over safety
- Fold‑down handle for easy transport
- Swivel regulator simplifies tank connection
Cons
- Not rated for high‑altitude use
- Propane tank sold separately
- Requires careful adherence to safety warnings
2. Mr. Heater Big Buddy Propane Heater
The Mr. Heater Portable Big Buddy Propane Heater bundle delivers reliable warmth wherever you need it—whether you’re camping, working in a garage, or heating a workshop.
The package includes the heater, a 10‑foot propane hose, and a solid‑brass tank refill adapter, so you’re ready to go right out of the box. Choose from 4,000, 9,000, or 18,000 BTU output to comfortably heat up to 450 sq ft of enclosed space.
Its easy‑start four‑position control, fold‑down handle, and swivel‑out fuel connection make set‑up a breeze, while the large heating surface maximizes efficiency.
Safety is built in: an Oxygen Depletion Sensor (ODS) and tip‑over detection automatically shut the unit off if oxygen levels drop or the heater is knocked over.
The brass refill adapter lets you refill a 1‑lb propane bottle in under a minute, thanks to a durable brass nipple and rubber gasket seal.
Pros
- Powerful 4,000‑18,000 BTU options
- Heats up to 450 sq ft quickly
- ODS and tip‑over safety sensors
- Quick‑connect 10‑ft hose included
- Brass adapter refills in seconds
Cons
- Requires propane tank access
- Not suited for large open areas
- Manual ignition may need practice
1. Mr. Heater MH18B Propane Heater
The Mr. Heater Enerco MH18B Big Buddy is a versatile radiant heater designed for both indoor and outdoor environments.
Delivering 4,000‑to‑18,000 BTU, it comfortably warms spaces up to 450 sq ft, making it ideal for workshops, garages, patios, and cabins.
Its clean‑burning propane system operates at nearly 100 % efficiency, so you get maximum heat with minimal waste.
The unit features an automatic safety shut‑off that activates if the heater is tipped, the pilot light extinguishes, or oxygen levels drop, giving you peace of mind during extended use.
A simple three‑position knob lets you dial low, medium, or high heat for a steady, consistent temperature.
Connect it directly to a standard propane tank (tank not included) and enjoy reliable warmth wherever you need it. Note that at altitudes above 7,000 ft the heater may shut off automatically to protect performance.
Pros
- Powerful 4,000‑18,000 BTU range
- Works indoors and outdoors safely
- Nearly 100 % combustion efficiency
- Auto shut‑off for tip‑over and low oxygen
- Easy three‑position heat control
Cons
- Propane tank not included
- May shut off above 7,000 ft altitude
- Requires ventilation for indoor use
Frequently Asked Questions
What makes Big Buddy Heaters suitable for both indoor and outdoor use?
Big Buddy Heaters are built with a weather‑resistant steel housing and sealed combustion chambers, allowing them to operate safely in rain, snow, or direct sunlight.
They also feature adjustable thermostats and quiet low‑flame settings that are ideal for indoor environments, while the high‑output models deliver up to 30,000 BTU for rapid outdoor heating.
How do I safely install a Big Buddy Heater in a garage or workshop?
- Ventilation: Ensure at least 12 inches of clearance to any combustible material and provide a vent or open door for fresh air.
- Floor protection: Place the heater on a non‑combustible surface (concrete, tile, or a fire‑proof mat).
- Clearance: Keep a minimum of 24 inches from walls, shelving, or equipment.
- Follow the manual: Connect the fuel source (propane or natural gas) using the supplied hose and regulator, and perform a leak check with soapy water before lighting.
What maintenance is required to keep my Big Buddy Heater running efficiently?
- Monthly inspection: Check the burner, ignition electrode, and fuel lines for debris or wear.
- Clean the air intake: Remove dust or leaves from the intake grilles to maintain proper airflow.
- Annual service: Have a qualified technician clean the heat exchanger, replace the spark plug (if applicable), and test the safety shut‑off mechanisms.
- Fuel check: Verify that propane tanks are full and that gas pressure matches the specifications in the user manual.
Regular maintenance not only prolongs the heater’s life but also ensures consistent heat output and safety for both indoor and outdoor applications.
Conclusion
Choosing a Big Buddy heater means investing in dependable warmth that adapts to any setting, whether you’re cozying up indoors or braving the chill outdoors.
Their reputation for durability, safety features, and user‑friendly design ensures peace of mind, while efficient fuel consumption keeps operating costs low.
By prioritizing consistent performance across a range of temperatures and environments, Big Buddy heaters provide the flexibility to tackle everything from a backyard gathering to a winter night in the garage.
Ultimately, the brand’s commitment to quality engineering and practical convenience makes it a trustworthy solution for anyone seeking reliable, hassle‑free heating year after year.
