Quick Summary: This guide compares five infrared propane heaters suited for workshops, garages, and small commercial spaces. The table below highlights each model’s core specs to help you pick the right unit for your space.
| Product | BTU Output | Approx. Coverage | Key Feature |
|---|---|---|---|
| Dyna-Glo IR30PMDG-1 | 6,000–30,000 BTU | Up To 1,000 Sq. Ft. | Liquid Propane Ready, Vent-Free Infrared |
| Mr. Heater 30,000 BTU Vent Free | 30,000 BTU | Up To 1,000 Sq. Ft. | High Efficiency Radiant Infrared |
| ProCom ML250TPA-B | Up To 25,000 BTU | Up To 1,150 Sq. Ft. | Thermostat Control, Compact Design |
| Dyna-Glo IR12PMDG-1 | 6,000–12,000 BTU | Up To 300 Sq. Ft. | Liquid Propane Ready, Small Footprint |
| Heatstar 30000 Vent Free Radiant | 30,000 BTU | Supplemental Heat For Larger Rooms | Thermostat And Blower Included |
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Dyna-Glo IR30PMDG-1 30,000 BTU

This vent-free infrared propane heater operates at 6,000–30,000 BTU and is marketed as liquid propane ready (field fuel conversion is not permitted). Infrared technology warms objects and people directly rather than heating air first, which is efficient in drafty or tall-shop environments. The manufacturer lists coverage up to 1,000 sq. ft., making it suitable for medium to large shops when properly sized. As a vent-free unit, it requires consideration of indoor air quality, ventilation, and local codes before installation.
Mr. Heater 30,000 BTU Vent Free Radiant

The Mr. Heater 30,000 BTU unit uses advanced infrared radiant technology to warm people and surfaces, with stated coverage up to 1,000 sq. ft. It highlights high efficiency and a measured fuel consumption (about 1.389 lbs/hr at max output), which translates into extended runtime on typical propane cylinders. The heater’s multiple burner tiles distribute radiant heat like “sun-like” warmth, making it suitable for localized task areas within a shop, garage, or addition. Consider ventilation and required cylinder sizes during planning.
ProCom ML250TPA-B 25,000 BTU

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The ProCom ML250TPA-B is a compact infrared mini heater producing up to 25,000 BTU. It lists heating coverage up to 1,150 sq. ft. and includes thermostat control with High/Medium/Low settings. Its slim profile supports wall mounting or floor placement with included hardware. For workshop use, the thermostat-controlled output can provide steady supplemental heating to maintain comfortable working temperatures while avoiding overheating sensitive equipment or materials.
Dyna-Glo IR12PMDG-1 12,000 BTU

This smaller Dyna-Glo model delivers 6,000–12,000 BTU and is designed for spaces up to 300 sq. ft. It is liquid propane ready and uses infrared radiation to warm objects and occupants directly. Its reduced output and compact size make it practical for localized heating in small workshops, parts rooms, or garage bays where a full-size unit would be excessive. Vent-free operation still requires attention to room size and air-exchange rates per code.
Heatstar 30000 Vent Free Radiant

The Heatstar 30,000 BTU radiant propane heater includes a top-mounted adjustable thermostat and an integrated blower to circulate warmed air. It offers a user-friendly ignition system and flexible mounting options (wall or free-standing with included feet). The combination of radiant panels and blower can enhance heat distribution in irregular shop layouts. As with other vent-free models, check local codes and indoor air requirements prior to installation.
Buying Guide: Choosing An Infrared Propane Shop Heater
Selecting the right infrared propane heater for a shop involves multiple factors. Below are key considerations with practical perspectives to guide a safe, effective purchase.
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Heat Output And Coverage
- Match BTU To Space: Calculate your shop’s heated volume (sq. ft. × ceiling height). Infrared heaters list BTU ranges and approximate coverage; choose a model with adequate output and avoid undersizing for open or poorly insulated spaces.
- Multiple Units Vs One Large Unit: For uneven layouts or several workstations, multiple smaller units can provide targeted heat and avoid wasted energy heating unused zones.
Fuel Type And Compatibility
- Liquid Propane Ready: Many models are factory-configured for liquid propane—verify whether field conversion is allowed. Some units are strictly one fuel type.
- Cylinder Sizing And Runtime: Check listed fuel consumption (lbs/hr) to estimate runtime on common tank sizes. This affects maintenance and convenience in remote or off-grid shops.
Vent-Free Infrared Considerations
- Indoor Air Quality: Vent-free propane heaters release combustion byproducts into the room. Ensure adequate ventilation, follow manufacturer clearance recommendations, and comply with local building codes.
- Carbon Monoxide And Oxygen Depletion: Use units with safety features and consider adding CO and oxygen-depletion sensors in the workspace.
Thermostat And Control Options
- Integrated Thermostats: Built-in thermostats enable consistent temperature control and improved fuel economy.
- Manual vs Automatic Controls: For shops where temperature swings are common, automatic thermostat control reduces cycling and maintains comfort for workers and stored materials.
Mounting, Footprint, And Airflow
- Wall-Mounted vs Floor Units: Wall mounting saves floor space and directs radiant heat into a work area. Floor models can be repositioned but may require more clearance.
- Blowers And Distribution: Models with blowers can help distribute heat from radiant panels into a larger area, useful in high-ceiling shops.
Durability And Maintenance
- Materials And Finish: Choose corrosion-resistant finishes if the shop has moisture, chemicals, or outdoor access.
- Serviceability: Consider ease of burner access, replacement parts availability, and local service options for safety inspections and maintenance.
Safety Features And Compliance
- Certifications: Look for units certified by recognized testing labs. Verify compliance with local codes for vent-free propane appliances.
- Clearance Requirements: Follow manufacturer-specified clearances from combustibles and ensure proper installation by qualified personnel when required.
Operational Costs And Efficiency
- Fuel Efficiency: Infrared heaters directly warm people and objects, often using less fuel than unit heaters that heat air. Compare listed lbs/hr or BTU/hour ratings for fuel cost estimates.
- Thermostat Use: Effective thermostat control and zoned heating minimize runtime and fuel consumption.
Use-Case Comparison
- Small Workshop Or Single Bay: Consider compact units like the Dyna-Glo IR12PMDG-1 for targeted heat.
- Medium To Large Shops: 25,000–30,000 BTU vent-free models (Dyna-Glo IR30PMDG-1, Mr. Heater 30k, Heatstar 30k) offer broader coverage; evaluate blower or multiple units for even distribution.
- Intermittent Use Or Task Heating: Units with quick radiant response and thermostat control are preferable to maintain comfort during work periods while saving fuel during downtime.
Before purchasing, verify local regulations regarding vent-free propane appliances, confirm proper sizing for your conditional space, and plan for safe installation and ventilation. Professional installation and appropriate safety detectors are recommended for enclosed shop environments.
Tips for Getting the Best HVAC Prices
- Prioritize Quality Over Cost
The most critical factor in any HVAC project is the quality of the installation. Don’t compromise on contractor expertise just to save money. - Check for Rebates
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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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