Heaters

Selecting The Right Size Heater

Area To Be Heated (Sq. Ft)	Watts	BTU
150	1500	5115
250	2500	8252
350	3500	11935
500	5000	17050
750	7500	25575
1000	10000	34100
1500	15000	51150
2000	20000	68200
2500	25000	85250
3000	30000	102300
5000	50000	170500
10000	100000	341000

Heaters are available in a variety of styles, functions, and type of heat source.

The first step in choosing the right heater is to determine the area to be heated. Important questions to ask include “How is your building insulated?” and “What climate zone are you in?”. Using the FHA standard insulation and mid-North American zone average of 8.2 watts/ ft2 here are the basics to guide you. Remember that a poorly-insulated building will require more watts/BTU's.

Measure the size of the area to be heated and multiply length x width x 8.2. Find your total watts required for the room. Figures are based on standard 7' ceiling height, 15% total window and door openings on outside walls and 3/4 total air changes per house.

Frequently Asked Questions

Have a Question? Our experts might already have the answers.

What is the difference between industrial and commercial heaters?

Commercial heaters warm business spaces such as offices, retail, restaurants, and shops, while industrial heaters are heavier-duty units built for warehouses, factories, garages, and job sites. Global Industrial carries both, across electric, gas, oil, and radiant designs.

Should I choose an electric or gas heater?

Electric heaters need no venting, run quietly, and require little maintenance, making them ideal for smaller or well-insulated spaces with reliable power. Gas and oil heaters deliver higher output for large or open areas but require fuel and, in most cases, exhaust venting.

What is the best type of heater for a warehouse or large open space?

For high-bay and open areas, radiant infrared heaters and gas unit heaters are the most efficient, since radiant heat warms people and objects directly instead of heating air that rises out of reach. Smaller or well-insulated spaces can use electric unit heaters.

What types of heaters does Global Industrial offer?

Global Industrial carries electric, gas and oil, steam and hydronic, and specialty heaters, in radiant, infrared, convection, and forced-air designs, including unit heaters, space heaters, process heaters, and patio heaters.

Industrial & Commercial Heaters

Global Industrial is a leading online retailer of heating, ventilation, and air conditioning (HVAC) equipment, including heaters. We offer competitive pricing, fast shipping, and excellent customer service to ensure a hassle-free shopping experience. We offer everything from electric heaters, oil and gas heaters, and blanket heaters to portable heaters, patio heaters, and fire pits. Whether you need a heater for a small space or a large industrial facility, you can count on Global Industrial to provide high-quality products at affordable prices.