Ventless wall heaters provide localized warmth without ductwork. Below is a concise comparison of five relevant models covering infrared vs blue flame, natural gas vs propane, and controls like thermostats or manual settings.
| Product | Fuel / Type | Max BTU | Coverage | Control |
|---|---|---|---|---|
| ProCom MN300TPA-B | Natural Gas / Infrared | 30,000 | Up To 1,400 Sq. Ft. | Thermostat (High/Med/Low) |
| Mr. Heater MHVFBF20LPT | Propane / Blue Flame | 20,000 | Up To 700 Sq. Ft. | Thermostat / Electronic Ignition |
| Dyna-Glo IR30PMDG-1 | Liquid Propane / Infrared | 30,000 | Up To 1,000 Sq. Ft. | Variable Heat Output |
| ProCom MN300HBA-B | Natural Gas / Blue Flame | 30,000 | Up To 1,400 Sq. Ft. | Manual Control (3 Settings) |
| Dyna-Glo 30,000 BTU Blue Flame | Liquid Propane / Blue Flame | 24,000–30,000 | Up To 1,000 Sq. Ft. | Variable Heat Output |
Content Navigation
- ProCom MN300TPA-B Ventless Natural Gas Infrared Space Heater
- Mr. Heater MHVFBF20LPT 20,000 BTU Blue Flame Vent Free Propane Heater
- Dyna-Glo IR30PMDG-1 30,000 BTU Liquid Propane Infrared Wall Heater
- ProCom Natural Gas Ventless Blue Flame Heater MN300HBA-B
- Dyna-Glo 30,000 BTU Liquid Propane Blue Flame Vent Free Wall Heater
- Buying Guide: How To Choose A Ventless Wall Heater
ProCom MN300TPA-B Ventless Natural Gas Infrared Space Heater
This infrared ventless wall heater uses natural gas and is rated at 30,000 BTU, described to heat up to 1,400 sq. ft. The unit includes a built-in thermostat with High/Medium/Low settings, and it ships with both wall-mount hardware and base feet for floor placement.
Key functional aspects listed by the manufacturer include compact infrared technology for radiant heating, a slim modern profile for room integration, and thermostat control to adjust heat output. The mount flexibility supports installation on a wall or placement on the floor using included feet. The listed application areas include offices, bedrooms, and living rooms.
Mr. Heater MHVFBF20LPT 20,000 BTU Blue Flame Vent Free Propane Heater
This propane powered blue flame vent-free heater is rated at 20,000 BTU with a stated coverage up to 700 sq. ft. It is designed for varied spaces including rooms, additions, sunrooms, cabins and garages. The model supports operation up to elevations of 4,500 ft.
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Manufacturer features include an accurate thermostat, battery-powered electronic ignition (battery included), and an Oxygen Depletion Sensor (ODS) for automatic shut-off under low oxygen conditions. Fuel consumption rate and elevation capability are provided, which are relevant for installation planning and ongoing operation considerations.
Dyna-Glo IR30PMDG-1 30,000 BTU Liquid Propane Infrared Wall Heater
This Dyna-Glo unit is a liquid propane infrared vent-free wall heater offering up to 30,000 BTU and variable output down to 6,000 BTU, with manufacturer-stated coverage around 1,000 sq. ft. It emphasizes radiant heating that warms objects before air, similar to solar radiation.
Key product notes include that it is liquid propane ready and that fuel conversion is not permitted. The variable heat output allows adjustment to match room size and demand. Infrared operation may lead to different perceived warmth distribution compared to convective blue flame models.
ProCom Natural Gas Ventless Blue Flame Heater MN300HBA-B
This ProCom model is a natural gas blue flame ventless heater with a listed maximum of 30,000 BTU. It is described to heat up to 1,400 sq. ft. and is designed to operate without electricity using push-button Piezo ignition.
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Manufacturer features include manual control with three heat settings (Low/Medium/High), a non-electric ignition method, included base feet, and an Oxygen Depletion Sensor for automatic shut-off. The manual control design may suit installations where simple, reliable adjustments are preferred.
Dyna-Glo 30,000 BTU Liquid Propane Blue Flame Vent Free Wall Heater
This Dyna-Glo blue flame vent-free heater is rated at 24,000–30,000 BTU for spaces up to 1,000 sq. ft. It is intended for wall mounting and uses blue flame technology to convect heat and warm air similar to a central heating approach.
Manufacturer features note liquid propane readiness with no permitted fuel conversion, wall-mounting design, and a variable heat output to match room requirements. Blue flame convective heating tends to distribute warm air, in contrast with infrared radiant models.
Buying Guide: How To Choose A Ventless Wall Heater
This buying guide covers key considerations when selecting a ventless wall heater: fuel type, heating method, BTU and coverage, controls and safety, installation, and room application.
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Fuel Type: Natural Gas vs Propane
- Natural Gas typically requires a gas line connection and is common in homes with existing service. It can offer continuous supply without tank changes.
- Propane (Liquid Propane) uses cylinders or bulk tanks and is suitable where natural gas is unavailable. Check that the model is specifically rated for propane or natural gas; many units do not permit fuel conversion.
Heating Method: Infrared vs Blue Flame
- Infrared (Radiant) warms objects and people directly and can feel warmer at lower air temperatures. It is useful in spaces where targeted warmth is needed.
- Blue Flame (Convective) heats the air to provide overall room temperature rise. It behaves more like central heating and can circulate warmth throughout the space.
BTU Output And Coverage
- Match BTU rating to the room size. Higher BTUs cover larger areas but require proper ventilation and fuel supply considerations.
- Manufacturer coverage estimates (sq. ft.) assume specific conditions; real-world performance depends on insulation, ceiling height, climate, and room layout.
Controls And Features
- Thermostat Control allows temperature regulation and can improve comfort and efficiency.
- Manual Settings are simple and may be preferred for reliability and installations without electricity.
- Ignition Type: Electronic ignition may require batteries/electricity; piezo ignition avoids electrical needs.
Safety Features
- Oxygen Depletion Sensor (ODS) — Automatically shuts the unit off if oxygen levels fall below safe thresholds; commonly included in ventless models.
- Follow local codes and manufacturer instructions regarding clearances, installation, and combustible materials near the heater.
Installation And Location
- Confirm whether the unit ships with wall-mount hardware and base feet if floor placement is desired.
- Consider elevation ratings if located at high altitude, as some models specify elevation limits for proper combustion.
- Check that your home’s gas supply (line size, pressure) and, for propane, tank capacity and placement meet the heater’s requirements.
Additional Comparison Perspectives
- Energy Use And Fuel Costs: Fuel efficiency depends on local rates; higher BTU output uses more fuel but may reach target temperatures faster.
- Comfort Preference: Choose infrared if you prefer direct radiant warmth; choose blue flame for convective whole-room heating.
- Maintenance: Regular inspection of burners, pilot/ignition components, and clearances is important. Follow manufacturer maintenance guidance.
- Compatibility With Existing Systems: Consider whether the ventless heater will supplement or replace other heating sources and how controls will be managed.