Quick Overview: This guide compares five portable propane heaters suitable for camping, RV use, tents, and small outdoor spaces. Each model includes key features like ignition type, safety shutoffs, and BTU output so you can match a heater to your space and use case.
| Product | Brand | BTU Range | Suggested Coverage |
|---|---|---|---|
| Mr. Heater Portable Buddy MH9BX | Mr. Heater | 4,000–9,000 BTU | Up To 225 Sq. Ft. |
| Mr. Heater 4000–18000 BTU Dual Tank | Mr. Heater | 4,000 / 9,000 / 18,000 BTU | Up To 450 Sq. Ft. (high) |
| Mr. Heater MH4B Little Buddy | Mr. Heater | 3,800 BTU | Up To 95 Sq. Ft. |
| Mosoyolo 6500 BTU Portable Heater | Mosoyolo | 6,500 BTU | Small Outdoor Spaces, Tents |
| Buyplus 6200 BTU Portable Heater | Buyplus | 6,200 BTU | Small Outdoor Areas, Garages |
Mr. Heater Portable Buddy MH9BX
The Mr. Heater Portable Buddy MH9BX is a compact propane radiant heater designed to provide adjustable heat from 4,000 to 9,000 BTUs. Its infrared radiant output warms people and objects directly and is rated for spaces up to 225 square feet. The unit uses a Piezo igniter for matchless start-up and includes an improved tip-over safety switch to automatically cut fuel if the heater is displaced. Intended for both indoor-safe applications (well-ventilated) and outdoor use, this model emphasizes efficient, direct heating suitable for campers, workshops, and porches.
Mr. Heater 4K–18K BTU Portable LP Unit
This variable BTU heater offers three heat levels—4,000, 9,000, or 18,000 BTUs—to match different environments. With a potential heat range up to 450 square feet at the highest setting (when connected to a larger tank), the unit supports a dual tank connection option for extended runtime or higher-capacity tanks. It features a single control knob and a reliable piezo sparking mechanism, plus automatic safety shutoff for tip-over events. This model is suited to users who need flexible output from small tents to larger covered patios or sheds.
Mr. Heater MH4B Little Buddy
The MH4B Little Buddy delivers 3,800 BTU with a focused 45° heating angle, designed for small enclosed spaces such as tents up to 95 square feet. It incorporates an Oxygen Depletion Sensor (ODS), tip-over protection, and a patented cross thread connector to reduce installation errors. Lightweight and cordless, the Little Buddy is intended for short-run heating inside well-ventilated campers or micro-cabins, and it runs for several hours on a 1-pound cylinder at maximum output.
Mosoyolo 6500 BTU Portable Propane Heater
The Mosoyolo 6500 BTU portable heater offers a middle-ground output geared toward outdoor activities such as camping, hunting blinds, and golf carts. Key features include a built-in electric igniter, foldable legs for compact transport, an all-aluminum reflector for durable radiant performance, and a tip-over automatic leak protection mechanism to stop fuel flow if knocked over. The unit connects to standard 1-pound canisters and emphasizes rapid heat-up for small outdoor spaces.
Buyplus 6200BTU Portable Patio Heater
The Buyplus 6200BTU portable patio heater focuses on outdoor and semi-enclosed use with an electronic ignition, control valve, and a protective mesh guard around the heating element. The mesh reduces direct contact risk and helps prevent foreign objects from interfering with the burner. The model is marketed for tent use, garages, and short-term outdoor activities, and highlights quick start-up and consistent heat delivery for small areas.
Buying Guide
This buying guide outlines key considerations when choosing a propane camping heater and provides comparison perspectives to match heater characteristics to common use cases.
1. Match BTU Output To Space Size
BTU indicates heating capacity. For small tents and enclosed shelters, 3,000–6,500 BTU units (e.g., MH4B, Mosoyolo, Buyplus) usually suffice. For larger RVs, screened porches, or garage use, consider 9,000–18,000 BTU or higher models. Keep in mind that radiant heaters warm objects and people directly rather than heating all air quickly.
2. Indoor-Safe Rating And Oxygen Depletion Sensor
For enclosed or partially enclosed spaces, choose Indoor-Safe models with an Oxygen Depletion Sensor (ODS) and automatic shutoff. ODS reduces the risk of CO exposure by shutting the unit off if oxygen falls below safe levels. Models like the Little Buddy include ODS and are intended for close-quarters use with proper ventilation.
3. Ignition Type: Piezo Vs Electronic
Piezo igniters provide matchless starts without batteries and are very common in Mr. Heater units. Electronic igniters use a small battery or electric spark and often deliver a quick, repeatable startup. Both work well; the choice comes down to reliability preferences and whether you want battery dependence for ignition.
4. Safety Features To Prioritize
- Tip-Over Shutoff: Automatically stops fuel flow if the heater falls over—essential for tents and busy areas.
- Flame Failure/ODS: Shuts off if the flame extinguishes or oxygen levels drop.
- Protective Mesh/Guard: Reduces accidental contact with hot surfaces, beneficial around children or pets.
5. Fuel Source, Runtime, And Tank Compatibility
Small portable heaters typically run on 1-pound disposable cylinders for ease of transport. Larger models support 20 lb or 30 lb tanks and sometimes dual-tank hookups for extended runtime or higher output. Match tank type to your trip length and portability needs. Consider regulator and hose compatibility if using non-standard tanks.
6. Portability, Weight, And Mounting
For backpacking and lightweight camping, compact cordless, low-weight heaters with foldable stands are preferable. For basecamp, tailgating, or porches, heavier, higher-output units offer more heat but reduce portability. Tank-top heaters mount directly to larger tanks for stationary use, while buddy-style units are freestanding.
7. Heat Type: Radiant Vs Convection
Radiant heaters warm people and objects directly and are efficient for spot heating in tents or around seating areas. Convection heaters move air and can take longer to warm a whole space. Propane camping models are typically radiant, making them effective for sitting areas or targeted warmth.
8. Altitude And Performance
Some propane heaters may operate differently above high elevations (commonly >7,000 ft). Check manufacturer guidelines for high-altitude operation; automatic shutoff or performance changes can occur. If you camp at high elevations, choose a unit rated for that altitude or plan for limited runtime.
9. Ventilation And Safe Operation
Always provide adequate ventilation when using any fuel-burning heater in a tent or enclosed area. Even indoor-safe heaters require some air exchange. Follow manufacturer instructions on minimum clearances from walls, sleeping bags, and combustible materials. Use CO detectors when running heaters in semi-enclosed spaces.
10. Use Case Comparisons
- Small Tent Or Single Person Shelter: Low-BTU, compact units like the MH4B Little Buddy provide focused radiant heat with ODS for safer enclosed use.
- Group Camping Or Trailer Interior: Mid-range units (6,000–9,000 BTU) such as Mosoyolo or Buyplus can warm a small group area while remaining portable.
- Large Porch, Garage, Or Tailgate: Variable or high-output units with 9,000–18,000 BTU or tank-top 45,000 BTU devices are designed to warm larger open or semi-enclosed spaces.
11. Maintenance, Storage, And Accessories
Inspect hoses, connectors, and regulator seals before each use. Store propane cylinders upright in a cool, ventilated place. Consider accessories like tank holders, wind screens for outdoor use, and travel cases for protection. Replace worn O-rings and keep the burner area free of debris.
12. Regulatory And Location Considerations
Some models are certified or restricted for specific regions. Check local guidelines for indoor use and certifications (e.g., Canada/Massachusetts approvals). Ensure your chosen heater complies with campground and park regulations about open-flame devices and fuel storage.
13. Choosing Based On Longevity And Versatility
If you want a single unit for a mix of uses—tent, RV, and occasional patio—consider a heater with multiple BTU settings and strong safety features. For dedicated tent use, prioritize ODS, tip-over protection, and compact form factor. For stationary outdoor use, prioritize higher BTU and tank compatibility.
Use this guide to align BTU, safety features, portability, and fuel options to your primary camping scenarios. Proper selection and safe operation will maximize performance and reduce risk when using propane heaters outdoors or in semi-enclosed spaces.