How to Choose the Best Heater for Your Facility

If your warehouse or jobsite gets cold during winter, knowing how to choose a space heater can help you keep teams comfortable and maintain productivity. With so many heater types and configurations out there, it’s important to match the heater to your facility’s size, airflow, and usage patterns. Whether you're warming a construction site, large garage, or industrial warehouse, the right heating solution depends on a few key factors: your space size, insulation level, power availability, and how often the heater will run. Let’s walk through what to consider when choosing a heater that fits your space and supports your team’s workday.

There’s no one-size-fits-all when it comes to heaters. Here’s a breakdown of some commonly used heater types for commercial and industrial spaces.

• Unit Heaters: Designed for large, open spaces like warehouses or workshops. These are often mounted and can run on gas or electricity.
• Infrared Heaters: Also known as radiant heaters, they heat objects and people directly instead of the air. These are great for spot heating or areas with high ceilings.
• Electric Heaters: Easy to install and maintain, electric units are ideal for smaller spaces or facilities where gas lines aren’t available.
• Gas Heaters: These include natural gas and propane heaters. They deliver high heat output and are suitable for ventilated areas.
• Space Heaters: Portable and versatile, but best used in smaller areas or for temporary heat.
• Outdoor Heaters: Built to withstand the elements, these can help when outdoor crews need warmth between tasks or breaks.

Each type has its place depending on whether you need full-building heat or localized warmth.

A common rule of thumb is to plan for about 10 watts of heating power per square foot. For example, a 2,000-square-foot warehouse may require a 20,000-watt heating solution, or multiple units placed strategically. For large or poorly insulated spaces, radiant heaters may be more effective since they heat objects rather than the air.

If your facility has high ceilings, you may also want to consider heaters with fans to help push warm air down, or ceiling-mounted units that direct heat where it’s needed.

Before selecting a heater, think about your available utilities.

• Electric heaters are easy to use, but they may not be cost-effective for large spaces that operate constantly.
• Propane or natural gas heaters offer powerful heat output but must be installed and used in accordance with local safety codes.
• For indoor areas, make sure any gas-powered heater is rated for indoor use. Always check that there is adequate ventilation.

Refer to OSHA guidelines for safe indoor air quality and equipment clearances to ensure compliance.

Do you need temporary heat for a seasonal job? A portable space heater or propane unit might do the trick. Are you heating a full warehouse year-round? Then a fixed unit heater or infrared heating system could serve better. Frequency of use, duration, and exposure to the elements all play a part in selecting the right heating option. Also think about mounting options—wall, ceiling, or floor-mounted—especially when floor space is limited or when heating larger zones.

Whatever type you choose, make sure the heater comes with built-in safety features, such as tip-over protection, thermal cut-off switches, or overheat protection. Even though most commercial heaters are designed with rugged environments in mind, they still need regular maintenance. Keep filters clean and ensure vents are clear to help units perform efficiently. Be sure to follow the manufacturer’s guidance and any applicable codes for electrical or gas-powered heating systems.

Final Thoughts

Choosing a heater for your facility doesn’t have to be complicated, but it does need to be thoughtful. By looking at space size, insulation, power source, and usage needs, you can select a heating solution that supports your operations and your crew. Whether you’re heating a warehouse, jobsite, or commercial building, there’s a heater configuration out there that fits your workday.

Product Compliance and Suitability

The statements contained in this guide are intended for general informational purposes only. Such statements do not constitute a product recommendation or representation as to the appropriateness, accuracy, completeness, correctness, or currentness of the information provided. Information provided in this guide does not replace the use by you of any manufacturer instructions, technical product manual, or other professional resource or adviser available to you. Always read, understand, and follow all manufacturer instructions. Portions of this article were generated in part by ChatGPT, and edited by a member of the Zoro team.