Find reliable, thermostat-equipped propane space heaters that deliver controlled warmth for garages, cabins, rooms, and additions. The table below summarizes five propane heaters selected for thermostat features, BTU output, and intended coverage so you can compare core specs at a glance.
Product | Type | Max BTU | Coverage | Thermostat |
---|---|---|---|---|
ProCom ML100TPA | Infrared Ventless | 10,000 | Up To 500 Sq. Ft. | On-Unit Thermostat (High/Med/Low) |
ProCom ML100TBA | Blue Flame Ventless | 10,000 | Up To 500 Sq. Ft. | On-Unit Thermostat (High/Med/Low) |
Mr. Heater MHVFBF20LPT | Blue Flame Vent Free | 20,000 | Up To 700 Sq. Ft. | Built-In Thermostat |
Bluegrass Living B18TPIR-BB | Infrared Vent Free With Blower | 18,000 | Up To 950 Sq. Ft. | T-Stat Control |
Mr. Heater 30,000 BTU Radiant | Radiant Vent Free | 30,000 | Up To 1,000 Sq. Ft. | Top-Mounted Thermostat |
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- ProCom ML100TPA Ventless Propane Infrared Heater
- ProCom ML100TBA Ventless Blue Flame Space Heater
- Mr. Heater MHVFBF20LPT 20,000 BTU Blue Flame Heater
- Bluegrass Living 18,000 BTU Infrared Heater With Blower
- Mr. Heater 30,000 BTU Vent Free Radiant Propane Heater
- Buying Guide: Choosing A Propane Space Heater With Thermostat
- Heat Output And Room Size
- Thermostat Type And Control Precision
- Heating Method: Radiant, Infrared, Or Blue Flame
- Ventless Vs. Vent Free Considerations
- Safety Features
- Installation And Placement
- Fuel Supply And Consumption
- Maintenance And Reliability
- Noise And Comfort
- Regulatory And Indoor Air Quality Considerations
- Comparing Multiple Perspectives
ProCom ML100TPA Ventless Propane Infrared Heater

This compact infrared ventless heater offers a 10,000 BTU output and is designed to warm up to 500 sq. ft. The unit uses liquid propane and includes both wall-mount hardware and base feet for floor placement.
- Thermostat Control: On-unit thermostat with High/Medium/Low settings to regulate heat flow.
- Technology: Infrared heating warms objects directly for efficient, comfortable warmth.
- Installation Options: Wall mount or free-standing with included hardware; slim modern profile for limited spaces.
This model emphasizes versatility and compact footprint, suitable for bedrooms, offices, and living rooms where targeted radiant warmth and a thermostat are desired.
ProCom ML100TBA Ventless Blue Flame Space Heater

The ML100TBA is a blue flame ventless heater producing up to 10,000 BTU and intended for spaces up to 500 sq. ft. It combines visual blue-flame operation with thermostat-driven temperature control.
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- Thermostat Control: High/Medium/Low on-unit thermostat for basic temperature cycling.
- Performance: Blue flame design provides convective heat distribution for steady room warming.
- Design: Slim profile, wall-mount or floor placement with included mounting kit and base feet.
Best suited for users who prefer blue flame convection heat with a simple thermostat interface and flexible installation choices.
Mr. Heater MHVFBF20LPT 20,000 BTU Blue Flame Heater

The Mr. Heater MHVFBF20LPT provides up to 20,000 BTU and is rated to heat areas up to 700 sq. ft. This blue flame vent-free heater features a factory-installed thermostat and battery-powered electronic ignition for easy startup.
- Safety: Built-in Oxygen Depletion Sensor (ODS) for automatic shutoff in low-oxygen conditions.
- Controls: Integrated thermostat for accurate temperature control and improved comfort management.
- Performance: Designed for reliable operation at elevations up to 4,500 ft.; fuel consumption details provided by manufacturer.
This heater is appropriate for larger rooms, garages, and cabins where a higher BTU and a built-in thermostat enhance steady temperature maintenance and safety.
Bluegrass Living 18,000 BTU Infrared Heater With Blower

The Bluegrass Living B18TPIR-BB is an infrared vent-free heater with blower assistance, rated at 18,000 BTU and intended to heat up to 950 sq. ft. It includes a thermostat that cycles the unit to maintain set temperatures.
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- Thermostat: T-Stat control automates on/off cycles to hold desired room temperatures.
- Efficiency: Vent-free burner with high reported efficiency for energy-focused applications.
- Function: Blower enhances air circulation for more even heat distribution beyond pure radiant warming.
Suitable for garages, larger living spaces, and workshops where a combination of infrared warmth and blower-assisted circulation improves comfort control via thermostat cycling.
Mr. Heater 30,000 BTU Vent Free Radiant Propane Heater

This high-output radiant vent-free heater produces 30,000 BTU and is rated to heat up to 1,000 sq. ft. It uses multiple burner tiles for radiant heat and includes a top-mounted adjustable thermostat control.
- Thermostat: Top-mounted comfort control for easy temperature adjustments on the unit.
- Heating Method: Radiant heating directly warms objects and occupants for efficient comfort.
- Use Cases: Designed for larger rooms, additions, sunrooms, and cabins needing strong, consistent heat.
Consider this model when seeking high-capacity radiant heat paired with thermostat regulation for sizable interior spaces where direct warmth is preferred.
Buying Guide: Choosing A Propane Space Heater With Thermostat
Selecting the right propane space heater with thermostat involves balancing heat output, control accuracy, safety features, installation needs, and the heating method. The sections below outline the main purchase considerations and comparison perspectives.
Heat Output And Room Size
Match BTU to the room’s square footage. Lower BTU units (around 10,000 BTU) suit small rooms and offices, while mid-range (18,000–20,000 BTU) cover larger rooms and garages. High-capacity units (30,000 BTU) are meant for big spaces or poorly insulated areas. Manufacturers typically list estimated coverage; verify based on ceiling height and insulation.
Thermostat Type And Control Precision
Thermostats range from basic multi-position switches (High/Med/Low) to electronic or digital thermostats that maintain tighter temperature control. For consistent comfort and better fuel economy, consider models with precise thermostatic control or programmable thermostats if available.
Heating Method: Radiant, Infrared, Or Blue Flame
- Radiant/Infrared: Warms objects and people directly—comfortable and efficient indoors.
- Blue Flame (Convective): Heats air that circulates around the room—good for general warming of enclosed spaces.
- Blower-Assisted Units: Combine radiant/infrared warmth with forced-air circulation to distribute heat more evenly.
Ventless Vs. Vent Free Considerations
“Ventless” or “vent free” heaters exhaust combustion gases into the room, so follow local codes and manufacturer recommendations. Ensure adequate ventilation and consider models with built-in Oxygen Depletion Sensors (ODS) if safety is a priority.
Safety Features
- ODS (Oxygen Depletion Sensor): Automatically shuts the heater off if oxygen levels fall below safe thresholds.
- Tip-Over or Overheat Shutoffs: Important for portable or freestanding units.
- Certified Components: Look for units meeting applicable safety standards and listing references in product documentation.
Installation And Placement
Decide between wall-mounted and floor-standing models. Many units include mounting hardware and base feet for flexible placement. Clearance to combustibles, orientation, and installation by a qualified technician may be required by local code.
Fuel Supply And Consumption
Check required propane cylinder size and estimated fuel consumption at rated BTU. Larger BTU units consume more fuel per hour. Match run-time expectations to cylinder capacity and usage patterns.
Maintenance And Reliability
Inspect burner access for cleaning and service. Vent-free burners are generally low maintenance but periodic checks ensure stable performance. Availability of replacement parts and manufacturer support are practical considerations.
Noise And Comfort
Infrared and radiant units are often quiet; models with blowers produce some noise but aid circulation. If quiet operation matters, prioritize radiant-only models or check blower noise specifications where listed.
Regulatory And Indoor Air Quality Considerations
Local building codes may restrict ventless gas appliances in certain jurisdictions. Because ventless heaters release combustion by-products into the room, consider indoor air quality factors and ventilation. Models with ODS are designed to reduce risk related to low oxygen, but proper use and fresh air are still important.
Comparing Multiple Perspectives
- Performance-Oriented: Choose higher BTU radiant or infrared units for direct warmth in poorly insulated or large spaces.
- Efficiency-Focused: Vent-free infrared and blue flame units can provide high efficiency; thermostat cycling improves fuel economy.
- Safety-Focused: Prioritize built-in ODS and certified models; adhere to installation clearances and ventilation guidance.
When comparing options, weigh the balance between required heat output, thermostat precision, installation constraints, and safety features to select the propane heater that best matches your space and usage patterns.
Tips for Getting the Best HVAC Prices
- Prioritize Quality Over Cost
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Request at least three estimates before making your choice. You can click here to get three free quotes from local professionals. These quotes include available rebates and tax credits and automatically exclude unqualified contractors. - Negotiate Smartly
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