Choosing the best wall-mounted gas heater requires balancing heat output, fuel type, safety features, and installation needs. Below is a concise comparison of selected wall gas heaters from well-known brands to help you evaluate fit for rooms, venting preferences, and control features.
Product | Brand | Type | BTU / Coverage |
---|---|---|---|
Dyna-Glo IR30NMDG-1 | Dyna-Glo | Infrared, Natural Gas | 30,000 BTU / Up To 1,000 Sq. Ft. |
ProCom MN300TPA-B | ProCom | Ventless Infrared, Natural Gas | 30,000 BTU / Up To 1,400 Sq. Ft. |
ProCom MN300HBA-B | ProCom | Ventless Blue Flame, Natural Gas | 30,000 BTU / Up To 1,400 Sq. Ft. |
Comfort Glow 17,000 BTU | Comfort Glow | Direct Vent Natural Gas | 17,000 BTU / Up To 570 Sq. Ft. |
Dyna-Glo 20,000 BTU Blue Flame | Dyna-Glo | Vent Free Blue Flame, Natural Gas | 20,000 BTU / Up To 700 Sq. Ft. |
Content Navigation
- Dyna-Glo IR30NMDG-1 30,000 BTU Natural Gas Infrared Wall Heater
- ProCom MN300TPA-B Ventless Natural Gas Infrared Space Heater
- ProCom MN300HBA-B Blue Flame Ventless Natural Gas Heater
- Comfort Glow 17,000 BTU Direct Vent Natural Gas Wall Heater
- Dyna-Glo 20,000 BTU Natural Gas Blue Flame Vent Free Wall Heater
- Buying Guide
Dyna-Glo IR30NMDG-1 30,000 BTU Natural Gas Infrared Wall Heater

Type: Natural Gas infrared wall heater. Heating Method: Infrared radiation warms objects first, then the surrounding air.
Key Features: Natural Gas ready; infrared technology radiates heat similar to sunlight; up to 30,000 BTU for spaces up to 1,000 sq. ft.
This model targets direct radiant heating for occupants and objects rather than relying solely on air convection. The infrared approach can feel different from conventional blue-flame or convective units because surfaces absorb and re-radiate heat. It is designed for Natural Gas and does not permit fuel conversion. Installation typically requires appropriate wall clearances and a qualified gas connection.
ProCom MN300TPA-B Ventless Natural Gas Infrared Space Heater

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Type: Ventless Infrared Natural Gas heater with thermostat control. Heating Capacity: 30,000 BTU and rated to heat up to 1,400 sq. ft.
Key Features: Thermostat control with High/Medium/Low settings; compact modern profile; includes wall mount hardware and base feet for floor placement.
As a ventless infrared unit, this heater radiates heat into the room and does not require a flue, which simplifies installation where venting is impractical. Built-in thermostat control allows more consistent temperature management compared with manual-only controls. Ensure local codes permit ventless natural gas equipment and verify room size and ventilation requirements before installation.
ProCom MN300HBA-B Blue Flame Ventless Natural Gas Heater

Type: Ventless blue flame heater, Natural Gas only, manual control. Output: 30,000 BTU heats up to 1,400 sq. ft.
Key Features: No electricity required; push-button Piezo ignition; three manual heat settings; Oxygen Depletion Sensor (ODS) with automatic shut-off.
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This blue flame unit uses convective heating to warm air, which can be effective for general room temperature rise. The ODS provides an essential safety layer by shutting off fuel flow if oxygen drops below safe levels. Because the unit is ventless, combustion byproducts enter the living space, so adequate ventilation and adherence to code are important. Manual controls can be simpler for users preferring straightforward operation without thermostatic automation.
Comfort Glow 17,000 BTU Direct Vent Natural Gas Wall Heater

Type: Direct vent (sealed combustion) Natural Gas wall heater. Heat Output: 17,000 BTU suitable for up to 570 sq. ft.
Key Features: Sealed burn system; matchless Piezo ignition; built-in safety pilot and pressure regulator to stop gas flow if pilot is extinguished; compact wall-mount design.
Direct vent heaters draw combustion air from outdoors and exhaust to the outside using a sealed system, which separates combustion byproducts from indoor air. This design lowers indoor pollutant and moisture concerns associated with ventless models. The lower BTU rating compared with other options reflects targeted room sizes and improved indoor air quality considerations. Verify venting path and clearance requirements during planning.
Dyna-Glo 20,000 BTU Natural Gas Blue Flame Vent Free Wall Heater

Type: Vent-free Blue Flame Natural Gas heater. Output Range: 10,000–20,000 BTU for spaces up to 700 sq. ft.
Key Features: Blue flame convective heating mimics central heating circulation; variable heat output between 10,000 and 20,000 BTU; Natural Gas ready without conversion.
Vent-free blue flame units are designed to provide efficient in-room heating without the need for external venting. Because combustion occurs directly in the room, these heaters can raise humidity and introduce low levels of combustion byproducts into indoor air. They are suitable where venting is not feasible and when occupants maintain recommended ventilation. Choose appropriate sizing for room volume and use features like variable output to match comfort needs.
Buying Guide
Selecting a wall gas heater involves assessing room size, fuel type, venting preferences, controls, safety features, and compliance with codes. Below are key considerations to guide purchase decisions across multiple perspectives.
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Room Size And BTU Requirements
- Determine Square Footage: Measure floor area and ceiling height to estimate required heating capacity. Manufacturers list approximate coverage based on standard conditions.
- BTU Matching: Smaller rooms often require 10,000–20,000 BTU; medium rooms 20,000–30,000 BTU; larger or poorly insulated spaces may need higher outputs or multiple units.
- Allow For Insulation And Climate: Colder climates and poorly insulated rooms require more BTU margin to reach desired comfort.
Vented Vs Ventless (Direct Vent, Vent-Free, Infrared)
- Direct Vent / Sealed Combustion: Draws outdoor air and exhausts outside. Best for indoor air quality and tight homes. Common with Comfort Glow direct vent models.
- Ventless / Blue Flame: No external flue; efficient heat output but combustion byproducts and moisture enter the room. Check local codes and ventilation needs.
- Infrared Heating: Radiant heat warms objects and occupants directly. Perceived warmth can be higher even at lower air temperatures. Useful for targeted heating.
Fuel Type And Conversion
- Natural Gas vs Propane: Confirm availability of Natural Gas or Liquid Propane in your home. Some models are LP-only or NG-only and do not permit conversion.
- Conversion Limitations: Many units specify that fuel conversion is not permitted. Verify fuel designation before purchase.
Controls And Usability
- Manual Controls: Simple push-button or dial controls are reliable for basic operation but offer limited temperature regulation.
- Thermostat Controls: Built-in thermostats maintain set temperatures and can improve energy use and comfort consistency, as seen on the ProCom MN300TPA-B.
- Installation Options: Wall-mount only vs. wall-and-floor placement affects flexibility. Some heaters include base feet and wall brackets.
Safety Features
- Oxygen Depletion Sensor (ODS): Shuts off fuel supply if oxygen falls below safe levels. Standard on many ventless units.
- Sealed Burn System & Pressure Regulators: Direct vent models use sealed combustion and regulators to stop gas flow if pilot extinguishes.
- Clearances & Mounting: Follow manufacturer clearance and mounting instructions to prevent fire hazards and ensure safe operation.
Indoor Air Quality & Moisture
- Ventless Units: Will increase indoor moisture and introduce combustion byproducts. Consider a dehumidifier or additional ventilation if needed.
- Direct Vent Units: Minimize indoor air impact by isolating combustion. Preferable for tight, well-insulated homes or allergy concerns.
Installation & Local Regulations
- Professional Installation: Gas connections and vent runs typically require licensed professionals. Hire a qualified technician for safe installation and code compliance.
- Building Codes: Local and state codes may restrict ventless gas appliances in certain room types or jurisdictions. Confirm requirements before purchasing.
Energy Efficiency & Operating Costs
- Efficiency Metrics: Ventless heaters are typically more heat-delivery efficient because no exhaust is lost, but real-world efficiency depends on distribution and insulation.
- Operating Costs: Compare BTUs and fuel costs locally. Thermostat control can reduce runtime and energy use compared with manual-only units.
Maintenance And Longevity
- Routine Checks: Inspect pilot assemblies, burners, and clean vents or grills periodically. Follow manufacturer maintenance schedules.
- Replacement Parts: Verify availability of pilot assemblies, thermocouples, and mounting hardware for long-term serviceability.
Comparison Perspectives
- Best For Indoor Air Quality: Direct vent models separate combustion from living space.
- Best For Simpler Installation: Ventless units avoid flue installation but require ventilation planning.
- Best For Targeted Comfort: Infrared units provide immediate radiant warmth to occupants and surfaces.
- Best For Manual Simplicity: Manual blue flame units operate without electricity, useful where power is unreliable.
- Best For Thermostat Control: Models with built-in thermostats reduce temperature swings and runtime.