Best Small Vented Propane Heater for Campers and RVs

Quick Summary: This guide compares small vented and closely related propane heating options for campers and RVs, including compact direct-vent wall heaters, portable propane units often used in small spaces, and useful vent accessories. Below is a simple product summary to help you scan options quickly.

Product	Type	BTU Range	Best For
Comfort Glow 11,000 BTU Direct Vent	Direct Vent Wall Heater	11,000 BTU	Small to medium camper rooms
Comfort Glow 17,000 BTU Direct Vent	Direct Vent Wall Heater	17,000 BTU	Larger camper or multi-zone RV areas
Dyna-Glo 30,000 BTU Blue Flame	Vent-Free Wall Heater	24,000–30,000 BTU	Unvented spaces needing high output
Mr. Heater Portable Buddy MH9BX	Portable Radiant Propane Heater	4,000–9,000 BTU	Small cabins, quick spot heat
TOODOO RV Furnace Vent Screen	Accessory	N/A	Protects vents from insects and debris

Comfort Glow 11,000 BTU Direct Vent Propane Wall Heater

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This 11,000 BTU direct vent wall heater is designed for sealed combustion, drawing combustion air from outside and exhausting all combustion products outdoors. The sealed-burn design reduces indoor air contamination and suits installations where indoor oxygen levels are a concern.

• Coverage: Listed for up to about 375 sq. ft., appropriate for small to medium camper spaces or cabins.
• Safety: Matchless piezo ignition and a safety pilot with built-in pressure regulation help stop gas flow if pilot extinguishes.
• Design: Wall-mount, compact footprint (approx. 20 H x 17 W x 7 D) to preserve floor space.
• Installation Note: Requires proper venting through RV exterior wall and adherence to manufacturer clearances and RV codes.

Comfort Glow 17,000 BTU Direct Vent Propane Wall Heater

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The 17,000 BTU Comfort Glow model is a larger direct vent wall heater intended for bigger camper interiors or RVs with multiple compartments that need more heat capacity.

• Coverage: Rated for up to about 570 sq. ft., useful when a single unit must service larger open-plan RV areas.
• Sealed Burn & Safety: Uses a sealed combustion chamber, piezo ignition, and a safety pilot with integrated pressure regulation to limit gas flow if the pilot goes out.
• Space Saving: Wall-mounted design keeps usable floor area free and positions exhaust and intake for efficient operation.
• Installation Consideration: Because of higher BTU output, confirm RV structure, vent routing, and clearance specs before selecting.

Dyna-Glo 30,000 BTU Blue Flame Vent Free Wall Heater

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This Dyna-Glo model is a vent-free blue flame heater that convects heat into the living space. It is listed for higher output and larger area coverage than many small vented units.

• BTU Range: Variable output from about 24,000 to 30,000 BTU, suitable for spaces up to roughly 1,000 sq. ft. depending on insulation and layout.
• Operation: Blue flame technology convects heated air; no external venting required which simplifies installation in many RV setups.
• Vent-Free Considerations: Vent-free units add combustion byproducts and moisture to cabin air; they require careful attention to CO/ODS sensors and manufacturer ventilation rules, especially in small campers.
• Use Case: Effective where vent penetration isn’t possible, but check RV manufacturer recommendations and local regulations for vent-free appliance use.

Mr. Heater Portable Buddy MH9BX 4,000–9,000 BTU Radiant Heater

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The Mr. Heater Portable Buddy is a compact, portable radiant propane heater that produces direct, sun-like warmth. While not a vented wall heater, it’s a common choice for small camper spot heating and emergency supplemental heat.

• Output: Adjustable 4,000 to 9,000 BTU suitable for up to about 225 sq. ft. as spot or supplemental heat.
• Safety Features: Enhanced tip-over switch and oxygen depletion safety system variants exist; this model relies on a proven tip-over protection and piezo ignition.
• Portability: Lightweight and quick to set up for short-term or outdoor use; not a permanent vented solution.
• RV Use Notes: If used inside, confirm oxygen depletion safety device (ODS) compatibility and follow propane handling guidelines; many RV owners reserve this for intermittent use with ventilation.

TOODOO RV Furnace Vent Screen — 2 Pack Stainless Mesh

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This pack of stainless-steel mesh vent screens is an accessory rather than a heater, but it addresses an important practical issue for vented heaters in campers: keeping vents clear of insects, debris, and small animals.

• Fit: Each screen measures about 2.8″ diameter, designed to fit many Duo-Therm and Suburban furnace vents common in RVs.
• Protection: Prevents nests and blockages that could degrade performance or create safety risks for vented appliances.
• Installation: Includes spring hooks and an installation tool for straightforward attachment to exterior vent openings.
• Why It Matters: Vented heater performance and safety depend on unobstructed intake and exhaust; screens help maintain reliable operation.

Buying Guide: Choosing A Small Vented Propane Heater For Your Camper

Selecting the right heater for a camper requires balancing heating needs, ventilation type, safety features, and installation constraints. Below are the key factors to evaluate before purchasing.

Vented Versus Vent-Free

Direct Vent/Sealed Combustion: Draws air from outside and exhausts outdoors, reducing moisture and combustion byproducts inside the camper. Preferred for tight or occupied spaces and when RV manufacturers require vented appliances.

Vent-Free (Blue Flame): No external venting needed, easier to install, and effective at converting fuel to usable room heat. However, they increase indoor moisture and require strict adherence to ODS/CO detector guidance and local codes.

BTU Output And Space Size

Match the BTU rating to the camper’s usable heated volume, insulation, and expected outdoor temperatures. Smaller campers often need 5,000–12,000 BTU, while larger RVs may require 15,000–20,000+ BTU. Overheating is wasteful; undersizing leaves the space cold.

Safety Features

• Oxygen Depletion Sensor (ODS): Shuts off the heater if oxygen falls below safe levels—critical for indoor propane use.
• Tip-Over & Flame Failure Devices: Important for portable units and wall heaters with standing pilot systems.
• Sealed Combustion: For direct vent models, sealed combustion prevents room air from mixing with combustion gases.
• Carbon Monoxide and Combustion Gas Monitoring: Install certified CO and propane detectors in the camper regardless of heater type.

Installation And Venting Requirements

Direct vent heaters require a through-wall vent kit or approved ducting. Verify clearance distances, wall thickness compatibility, and whether your RV shell can accommodate a vent penetration. Professional installation is often recommended to meet code and warranty requirements.

Fuel Consumption And Cylinder Access

Consider propane consumption rates and how tanks or hook-ups will be used in the RV. Some units operate from small disposable cylinders while others connect to the RV supply. Confirm regulator compatibility and hose connections.

Moisture And Indoor Air Quality

Vent-free heaters add water vapor to the interior; in cold climates this can increase condensation and mold risk. Direct vent units minimize this issue. Factor in ventilation and dehumidification strategies when selecting a unit.

Portability Versus Permanent Mounting

Portable units like the Mr. Heater Buddy provide flexible spot heat and easy storage. Wall-mounted direct vent heaters deliver consistent, permanent heat and free up living space but require proper installation.

Compatibility With RV Systems

Check whether the heater is approved for mobile home or RV installation and whether it meets manufacturer and insurance guidelines. Some RV manufacturers restrict use of vent-free appliances, so verify before purchase.

Maintenance And Vent Protection

Regularly inspect vents and combustion areas for blockages or damage. Accessories like vent screens help keep external vents clear of insects and debris. Follow manufacturer maintenance schedules for pilots, sensors, and seals.

Multiple Comparison Perspectives

• Performance: Direct vent units provide cleaner indoor air quality; vent-free units deliver higher heat output for the same unit size.
• Installation: Vent-free models are easier to install; direct vent models require through-wall modifications and careful sealing.
• Safety & Indoor Air: Direct vent is superior for air quality; vent-free demands strict detector use and attention to humidity.
• Cost & Complexity: Portable and vent-free solutions are generally less complex; direct vent systems carry installation complexity and potential contractor costs.

Use this guide to weigh trade-offs according to your camper size, installation capability, ventilation options, and safety priorities. For any permanent installation, consult the heater manual and a qualified installer to meet RV regulations and ensure safe operation.