Finding the right salamander heater for a garage or workshop requires balancing fuel type, output, portability, and safety. Below is a concise comparison of five top options to help you decide. All entries link to the product page on Amazon for more details.
Model | Fuel / Type | Max BTU | Coverage Notes |
---|---|---|---|
Mr. Heater Big Maxx MHU50NG | Natural Gas / Unit Heater | 50,000 BTU | Up To ~1250 Sq. Ft. (vented) |
L.B. White TRADESMAN K210 | Kerosene / Forced Air | 210,000 BTU | High Output For Large, Well-Ventilated Areas |
L.B. White TRADESMAN K175 | Kerosene / Forced Air | 175,000 BTU | Portable Jobsite Or Garage Use |
Master MH-125V-GFA-A | Propane / Forced Air | 125,000 BTU | Variable Output, Large Spaces |
Master MH-80T-KFA | Kerosene/Diesel / Forced Air | 75,000 BTU | Thermostat Option, Floor-Mount |
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Mr. Heater Big Maxx MHU50NG Natural Gas

The Mr. Heater Big Maxx MHU50NG is a natural gas unit heater designed for semi-permanent installation in garages and workshops. It delivers 50,000 BTU per hour, which the manufacturer rates as sufficient to heat up to about 1,250 sq. ft. The model offers a powered exhaust enabling both vertical and horizontal venting, expanding installation flexibility in tight ceiling or wall cavities.
Service access features include outside access to thermostat, A/C terminals, and gas connection, simplifying maintenance and setup. As a vented natural gas unit, it requires proper venting and gas line hookup—factors to consider when comparing to portable torpedo heaters.
L.B. White TRADESMAN K210 Portable Kerosene

The L.B. White TRADESMAN K210 is a high-capacity forced air kerosene torpedo heater rated at 210,000 BTU. It targets heavy construction and large garage spaces that require rapid, high-volume heating. The design emphasizes robust performance and long-term reliability for demanding jobsite conditions.
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Key functional features include a spark ignition system for reliable starts and an integrated thermostatic control for automatic operation. The heater is intended for well-ventilated spaces and jobsite use where high BTU output is required. Ventilation, clearances, and fuel storage must follow local safety codes for kerosene heaters.
L.B. White TRADESMAN K175 Forced Air Kerosene

The TRADESMAN K175 is a slightly lower-output kerosene torpedo heater at 175,000 BTU. It retains the same operational focus on reliability and jobsite readiness as the K210 while offering a more moderate capacity for medium-to-large garages and workshops.
Notable items include spark ignition for consistent starts and a thermostatic control for automatic temperature regulation. The portability and forced-air design make it suitable for spaces that need targeted, moving heat rather than fixed unit heating. Ensure adequate ventilation when using kerosene heaters indoors.
Master MH-125V-GFA-A 125,000 BTU Propane

The Master MH-125V-GFA-A is a propane-fueled forced-air salamander heater with variable output and a 125,000 BTU peak. Manufacturer specs claim heating capacity for large indoor areas and up to thousands of square feet depending on insulation and ambient conditions.
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Highlights include variable heat settings for adjusting output and extended run times using standard propane tanks. The unit is positioned for warehouses, barns, and large garages where propane is preferred. As with all high-BTU forced-air heaters, use in well-ventilated spaces and follow propane fuel safety and regulator requirements.
Master MH-80T-KFA 80,000 BTU Kerosene/Diesel

The Master MH-80T-KFA is a versatile floor-mount forced air heater supporting kerosene or diesel with thermostat control and a rated output around 75,000 BTU. It emphasizes durability with upgraded rotor and vane construction to extend component life and reduce maintenance.
Features include a cold start system for reliable ignition, a built-in thermostat for automatic control, and CAFM specifications for efficient airflow. This unit is targeted at shops, garages, and construction sites where diesel/kerosene fuel is available and extended runtime with reduced upkeep is important.
Buying Guide For Salamander Garage Heaters
Selecting a salamander heater for a garage or workshop depends on several interrelated factors. Use this guide to compare fuel options, output, safety, and practical installation considerations.
Fuel Type And Availability
- Natural Gas: Good for semi-permanent installation where a gas line exists; typically quieter and vented designs reduce indoor combustion products.
- Propane: Portable and high-output; requires cylinder storage and regulator; suitable where line gas is not available.
- Kerosene/Diesel: Common on jobsites for robustness and long run times; requires careful ventilation and safe fuel handling.
- Electric/Infrared: Clean and easy to use indoors but limited by plug capacity and generally lower peak output than fuel-fired torpedoes.
BTU Output And Space Coverage
- Match BTU ratings to enclosed volume, insulation, and expected temperature drop. Manufacturers provide square-foot guidelines—use them as starting estimates, not guarantees.
- Higher BTU units heat larger or poorly insulated spaces faster but produce more combustion byproducts and may require greater ventilation.
Ventilation And Indoor Use
- Forced-air fuel-fired heaters (kerosene, diesel, propane) produce combustion gases; ensure adequate ventilation and follow clearance requirements.
- Vented natural gas unit heaters remove combustion products outside, improving indoor air quality but requiring installation and venting work.
Safety Features And Certifications
- Look For Thermostats, High-Temperature Limit Switches, And Cold-Start Systems To Improve Control And Safety.
- Check CSA, ETL, Or Other Local Certifications Where Applicable.
- Plan For Clearances, Stable Mounting, And Fuel Storage That Meet Local Codes.
Portability Vs Permanent Installation
- Portable Torpedo Heaters: Offer mobility across jobsites and garages; consider fuel handling and tipping/overturn protection.
- Unit Heaters: Require installation but often provide cleaner, quieter operation and permanent mounting advantages for an attached garage.
Control And Runtime
- Thermostatic Controls provide automatic cycling and consistent temperatures, reducing fuel use and wear on the unit.
- Variable Output is helpful when matching heat output to changing conditions or when using a limited fuel supply.
- Consider fuel tank size and burn rate for anticipated continuous run times.
Maintenance And Durability
- Inspect Filters, Burners, Spark Ignition Systems, And Fans Regularly.
- Choose units with durable components if used in heavy-duty or construction environments to lower downtime.
Comparison Perspectives
- Cost To Operate: Fuel price and heater efficiency affect long-term operating costs—natural gas and electricity often lower per-hour costs where available.
- Environmental And Indoor Air Quality: Vented natural gas and electric options minimize indoor combustion byproducts; fuel-fired torpedoes require good ventilation.
- Use Case Fit: For intermittent, portable heating on job sites, high-BTU kerosene or propane torpedoes are typical; for attached garages where permanent heat is desirable, a vented unit heater may be preferable.
When evaluating specific models, verify installation requirements, confirm local code compliance, and consider fuel logistics and ventilation before purchase.
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
Always research current rebates and incentives — they can significantly reduce your overall cost. - Compare Multiple Quotes
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
Once you've chosen a contractor, use the proven strategies from our guide — How Homeowners Can Negotiate with HVAC Dealers — to get the best possible final price.