Best Gas Heaters for Warehouses and Large Spaces

Finding the right gas heater for your warehouse can ensure efficient warmth during cold months, maintaining productivity and comfort in large spaces. This guide highlights some of the best units available, focusing on natural gas and propane heaters suited for warehouses, garages, and large workshops. Below is a summary of five top-rated heaters tailored to meet various heating needs and installation preferences.

Product Fuel Type BTU Output Coverage Area Type
Mr. Heater Big Maxx MHU80NG Natural Gas 80,000 BTU 2,000 Sq. Ft. Unit Heater (Ventable)
Reznor UDXC-60 Propane Heater Propane 34,860 – 49,800 BTU Varies Forced Air Garage Heater
Dyna-Glo IR30NMDG-1 Infrared Wall Heater Natural Gas 30,000 BTU Up to 1,000 Sq. Ft. Infrared Wall Heater
ProCom MN300HBA-B Ventless Blue Flame Heater Natural Gas 30,000 BTU Up to 1,400 Sq. Ft. Ventless Blue Flame
ProCom MN300TPA-B Ventless Infrared Space Heater Natural Gas 30,000 BTU Up to 1,400 Sq. Ft. Ventless Infrared

Mr. Heater Big Maxx Natural Gas Unit Heater

Mr. Heater Big Maxx Natural Gas Unit Heater

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The Mr. Heater Big Maxx MHU80NG is a robust natural gas unit heater delivering 80,000 BTUs, ideal for heating spaces up to 2,000 square feet. This model is designed for commercial applications including large warehouses with a focus on powerful, efficient warmth. It includes two angle brackets and a liquid propane conversion kit (thermostat, hose & regulator are not included).

Key features include a 120V power supply with 2.3 amps and dimensions of approximately 29.33” L x 15.50” W x 26.37” H. The heater supports category 1 vertical and category 3 horizontal venting with a minimum 8-foot clearance from the floor. Its high BTU output and venting flexibility make it well-suited for large garages and industrial workshops.

Reznor 60,000 BTU Propane Unit Heater

Reznor 60,000 BTU Propane Heater

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The Reznor UDXC-60 offers versatile propane-powered heating with two output levels: low fire at 34,860 BTU and high fire at 49,800 BTU. It boasts an impressive 83% thermal efficiency, making it an energy-conscious option for garages, warehouses, and industrial shops.

This forced-air heater can be ceiling- or wall-mounted equipped with suspension points via threaded nuts (mounting brackets sold separately). Its quiet operation suits both commercial and residential environments where discreet but effective heating is required.

Dyna-Glo Infrared Natural Gas Wall Heater

Dyna-Glo IR30NMDG-1 Wall Heater

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The Dyna-Glo IR30NMDG-1 utilizes infrared technology to radiate heat directly onto objects and people, mimicking the sun’s natural warming method. This provides a more efficient heat experience, especially in large, open warehouse spaces covering up to 1,000 square feet.

Operating only on natural gas with 30,000 BTU output, this wall-mounted heater is an excellent option for targeted heating. It is natural gas ready without fuel conversion capability and is designed for easy installation in industrial and commercial environments.

ProCom Ventless Blue Flame Natural Gas Heater

ProCom MN300HBA-B Ventless Blue Flame Heater

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The ProCom MN300HBA-B is a ventless blue flame heater delivering 30,000 BTU and capable of heating up to 1,400 square feet without requiring electricity. Featuring manual control with three heat settings and an oxygen depletion sensor that automatically shuts off for safety, this heater is ideal for indoor spaces needing supplemental heat.

Its compact design with included base feet or wall mount hardware makes it adaptable to various warehouse or workshop layouts. This unit provides efficient and safe heating where venting is impractical or impossible.

ProCom Ventless Infrared Natural Gas Heater

ProCom MN300TPA-B Ventless Infrared Heater

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The ProCom MN300TPA-B combines ventless operation with infrared heat production, generating a maximum of 30,000 BTU and warming spaces up to 1,400 square feet. Its slim modern profile fits discreetly into warehouse office areas or smaller enclosed workspaces.

Thermostat control offers precise adjustment across high, medium, and low heat settings. Designed for flexible placement on a wall or floor (hardware included), this heater provides effective, energy-conscious comfort tailored for commercial or light industrial zones.

Buying Guide for Warehouse Gas Heaters

Heating Capacity and Space Size

Consider the total square footage of your warehouse or workspace. Gas heaters range from 30,000 BTU units suitable for 1,000 sq. ft. spaces to high-capacity 80,000 BTU models covering over 2,000 sq. ft. Choose a heater with an output that matches or slightly exceeds your area’s heating requirements for optimal performance.

Fuel Type: Natural Gas vs. Propane

Natural gas heaters are often preferred for warehouses connected to municipal gas lines, providing convenience and lower operating costs. Propane heaters offer portability and flexibility, suitable for locations without natural gas access but require fuel storage and refills.

Ventilation Requirements

Choose between vented and ventless heaters depending on your building’s infrastructure and safety codes. Vented heaters expel combustion gases outside but require installation effort. Ventless heaters provide space-saving installation but need oxygen depletion sensors and proper air exchange to maintain safety.

Installation Options

Some heaters are designed for ceiling mounting, while others are wall-mounted or portable floor units. Consider available mounting options and the heater’s footprint to suit your warehouse layout and space restrictions.

Energy Efficiency and Safety Features

Look for heaters with high thermal efficiency ratings to reduce fuel consumption. Important safety features include oxygen depletion sensors, automatic shutoff, and compliance with safety standards to prevent hazards in large industrial spaces.

Control and Adjustability

Thermostat control or multiple heat settings allow you to tailor the heating output to current conditions, balancing comfort with energy savings. Manual controls or digital thermostats provide varying levels of precision depending on your preferences.