Best Vented Natural Gas Heaters With Blower for Home Heating

Choosing a vented natural gas heater with a blower can improve heat distribution and indoor air quality compared to vent-free units. Below is a compact comparison of five relevant heaters selected from the product list, followed by focused reviews and a practical buying guide.

Product	Type	Key Feature
Mr. Heater Vent Free Flame Natural Gas Heater, 20k BTU	Vent-Free	Quiet Integrated Blower
Mr. Heater 20K – 30K BTU Natural Gas Heater with Blower	Vent-Free + Blower Kit	Blower Fan Kit Included
Mr. Heater MHVFBF30NGT 30,000 BTU Vent Free Blue Flame	Vent-Free	Thermostat Control
Comfort Glow 17,000 BTU Direct Vent Natural Gas Wall Heater	Direct Vent	Sealed Burn System
Comfort Glow 25,000 BTU Direct Vent Natural Gas Wall Heater	Direct Vent	Larger Coverage Area

Mr. Heater Vent Free Flame Natural Gas Heater, 20k BTU

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This Mr. Heater model is a vent-free blue flame heater delivering 20,000 BTU and claims to heat spaces up to 500 sq. ft. It includes a quiet integrated blower that circulates warmed air for improved convection and more even room temperatures. The blue flame burner design supports steady, convection-style heat rather than direct infrared output.

Relevant features: 20,000 BTU per hour, suitable for natural gas; Blue flame burner for even convection heat; integrated quiet blower for gentle air circulation. As a vent-free unit, it relies on room air for combustion and does not require an external vent or chimney.

Mr. Heater 20K – 30K BTU Heater With Blower

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This listing bundles a compatible vent-free blue flame heater with a dedicated blower fan kit. The kit is designed for Mr. Heater 20,000 and 30,000 BTU models made from 2016 onward. The blower adds forced-air circulation, with a three-position rocker switch for basic blower speed control.

Relevant features: bundle includes vent-free blower fan kit and a 20,000 BTU base heater; compatibility limited to specified Mr. Heater models; three-position rocker switch for user control. This option is for buyers who want improved air movement with vent-free heating systems, not a direct-vent configuration.

Mr. Heater MHVFBF30NGT 30,000 BTU Vent Free Blue Flame

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This wall-mounted Mr. Heater provides up to 30,000 BTU and serves areas up to about 1,000 sq. ft. It includes a built-in thermostat and a free battery for the electric ignition system. The unit employs a blue flame burner designed to deliver efficient convection heating.

Relevant features: 30,000 BTU natural gas wall heater; thermostat for precise temperature adjustment; battery-powered electric ignition; blue flame burner that promotes even convection. While not explicitly marketed with an integrated blower, it is often paired with optional blower accessories for improved circulation.

Comfort Glow 17,000 BTU Direct Vent Natural Gas Heater

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This Comfort Glow model is a direct vent (sealed combustion) wall heater delivering 17,000 BTU, designed to heat up to ~570 sq. ft. The sealed burn system isolates combustion air from the living space, which can improve indoor air quality. The unit includes a matchless piezo ignition and safety pilot with a built-in pressure regulator.

Relevant features: Sealed burn system for safer indoor air, matchless piezo ignition, safety pilot with pressure regulator, space-saving wall-mount design. Direct-vent units like this typically do not rely on room air for combustion and are categorized as vented heaters even if they lack a separate forced-air blower.

Comfort Glow 25,000 BTU Direct Vent Natural Gas Heater

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The larger Comfort Glow direct vent heater increases capacity to 25,000 BTU and is rated to heat spaces up to ~825 sq. ft. It retains the same sealed combustion advantages—prevention of indoor combustion contamination—and includes safety features similar to the smaller model.

Relevant features: 25,000 BTU capacity for larger spaces, sealed burn and safety pilot with regulator, space-saving wall mount. Direct vent design means exhaust and combustion intake are routed outside, reducing the need to manage indoor combustion byproducts.

Buying Guide: How To Choose A Vented Natural Gas Heater With A Blower

Selecting the right heater involves combining safety, performance, and installation needs. Below are the key factors and comparison perspectives to weigh before purchasing.

Vented vs Vent-Free: Combustion Air And Indoor Air Quality

• Vented (Direct Vent / Sealed Combustion): Draws combustion air from outside and vents exhaust outside. Best for indoor air quality and for spaces where moisture and combustion byproducts must be minimized.
• Vent-Free: Uses room air for combustion and releases products into the living space. Vent-free units can be efficient and simpler to install but may affect indoor humidity and air quality.
• For homes with tight envelopes, basements, or those sensitive to indoor pollutants, vented units are generally preferable.

Blower Benefits And Placement

• Integrated Blower: Improves heat distribution, moves warm air faster into living zones, reduces stratification near ceilings.
• Optional Blower Kits: Many convection-style heaters can accept aftermarket blower kits. Confirm model compatibility before purchasing.
• Consider blower noise ratings, switch/control options, and wiring needs if the blower requires electrical power.

Heating Capacity And Room Size

• Match BTU output to room square footage and ceiling height. Typical guidance: 20,000–30,000 BTU units serve small-to-medium spaces; 25,000–30,000 BTU suits larger rooms or open plans.
• Account for insulation quality, windows, and climate. A more efficient design (blue flame or direct vent) may lower required BTU in well-insulated spaces.

Controls, Thermostat, And Ignition Type

• Thermostat Control: Provides accurate temperature regulation and energy savings compared to manual-only units.
• Ignition: Matchless piezo, battery-powered electronic ignition, or continuous pilot—each has trade-offs in reliability and standby energy usage.
• Look for user-friendly controls and compatibility with optional wall or remote thermostats if needed.

Safety Features

• Oxygen Depletion Sensor (ODS): Shuts down vent-free units if oxygen drops below safe levels.
• Sealed Burn Systems: Reduce exposure to combustion byproducts—standard for direct vent models.
• Pressure Regulators and Safety Pilots: Prevent unintended gas flow and improve safe operation.

Installation And Venting Requirements

• Direct Vent: Requires proper venting to exterior with approved piping and clearances; often needs professional installation.
• Vent-Free: Easier to install but check local building codes; some jurisdictions restrict vent-free heaters in certain rooms.
• Verify manufacturer-specified clearances, altitude limits, and certification for indoor use.

Energy Efficiency And Operating Costs

• Blue Flame Burners: Typically provide steady convection heat with good fuel efficiency.
• Infrared vs Convection: Infrared heaters warm objects and people directly; convection heaters warm air. Choose based on room layout and occupant preferences.
• Consider blower usage patterns—running a blower can increase electricity use but may reduce overall gas runtime by distributing heat more effectively.

Noise, Maintenance, And Serviceability

• Blower Noise: Check reviews or specs for “quiet” blower claims if low noise is important.
• Maintenance: Regular checks of pilot, burners, vents, and blower motor extend service life. Sealed combustion systems often require less indoor maintenance but still need periodic inspection.
• Parts Availability: Confirm that replacement parts and compatible blower kits are available for the model chosen.

Comparison Perspectives

• Small Room / Budget Focus: Vent-free 20,000 BTU units with integrated blower offer simple installation and improved circulation but require attention to ventilation and local code compliance.
• Larger Spaces / Air Quality Priority: Direct vent (sealed combustion) models at 25,000+ BTU provide safer combustion isolation and better indoor air control; pair with an inline or optional blower if available.
• Retrofit / Blower Upgrade: If you own a compatible unit, a blower fan kit can enhance distribution—confirm compatibility and electrical requirements first.

When comparing models, prioritize safety systems, confirm venting type, match BTU output to room needs, and verify blower compatibility or integrated blower specifications. Professional installation is recommended for vented systems to ensure safe, code-compliant operation.