Direct, efficient heating is essential for large spaces and industrial settings. This guide highlights five natural gas infrared heaters that fit commercial and industrial demands. Each option targets different space sizes, installation needs, and usage scenarios. Read on to identify the best match for your space, safety requirements, and long-term maintenance considerations.
| Product | Brand | Notes |
|---|---|---|
| SunStar Heating Products Infrared Ceramic Heater- Natural Gas 80,000 BTU | Sunstar | High output for larger spaces; durable aluminized steel; angle-mount capable |
| RHT-100-30-N Two-Stage Natural Gas 100,000 BTU 30′ Long Radiant Tube Heater | Universal Ray | Two-stage operation; designed for longer radiant tubes; commercial use noted |
| Universal Ray RH-75-20-N Single Stage Natural Gas 75,000 BTU 20′ Long Radiant Tube Heater | Universal Ray | Compact 20 ft tube; single-stage; commercial use noted |
| SunStar Natural Gas Heater Infrared Ceramic, 60,000 BTU | GUM | Requires ventilation; not residential certified; contractor installation |
| Universal Ray RH-150-40-N Single Stage Natural Gas 150,000 BTU 40′ Long Radiant Tube Heater | Universal Ray | Very high output; longer tube length; commercial use noted |
SunStar Infrared Ceramic Heater, 80,000 BTU
Best for large spaces or open industrial areas that require high heat output. This model uses aluminized steel construction for corrosion resistance and long life, with aluminum reflectors to maximize radiant efficiency. It allows horizontal angle mounting up to 30 degrees, enabling flexible heat direction. Suitable for workshops and warehouses where steady, directional heat is needed. Caution: ensure adequate ventilation and compliant installation per local codes.
RHT-100-30-N Two-Stage Natural Gas 100,000 BTU
Best for mid-to-large commercial spaces needing adjustable heat. The two-stage design offers better efficiency and control at varying heat demands. This unit is positioned for commercial/industrial use, with black coated aluminized steel emitter tubes that aid in radiant projection. Best for spaces where zoning and staged heating are advantageous. Limitation: listings note potential discrepancies in online descriptions; verify installation requirements with a licensed professional.
RH-75-20-N 75,000 BTU, 20′ Long Tube Heater
Best for compact commercial installations where space constraints exist. This 20-foot long radiant tube heater uses a single-stage operation and is marketed for commercial/industrial use. It is not approved for residential use and features black aluminized steel emitter tubes for durable heat projection. Choose this if you need reliable, straightforward operation in smaller industrial rooms.
RH-150-40-N 150,000 BTU, 40′ Tube Heater
Best for very large or industrial spaces that demand high heat output across long distances. The 150,000 BTU rating and 40-foot tube length indicate strong performance in open, spacious facilities. It is designed for commercial/industrial use and includes black coated emitter tubes. Limitation: larger units require appropriate installation planning and ventilation considerations as part of code compliance.
SunStar Infrared Ceramic 60,000 BTU
Best for moderate spaces where additional ventilation is already considered. This unit notes ventilation requirements of 4 CFM per 1000 BTU/hr of total capacity, and it is not certified or approved for residential use. Installation should be performed by a licensed contractor in compliance with local codes. Useful for controlled, semi-industrial environments with existing ventilation plans.
StarGlo Ceramic Infrared Heater, 40K BTU
Best for smaller spaces or supplementary heat in industrial environments. This unit provides 40,000 BTU and is marketed for general use with package-friendly design. It can serve as a secondary heater in a zoned system or in facilities where moderate radiant warmth is sufficient. Caution: ensure alignment with ventilation and safety requirements for gas-fired infrared units.
Buying Guide
What space size will you heat? Larger spaces benefit from higher BTU and longer tube lengths, while smaller shops can run efficiently with mid-range units.
Is zoning or staggered heating important? Two-stage models offer better control and efficiency in variable-demand environments.
What installation constraints exist? Some units require ventilation, licensed installation, and adherence to local codes; residential use is often restricted in commercial units.
Do you need directional heat? Models with angle-mounting or longer radiants can direct heat where it’s most needed.
What maintenance is expected? Choose units with corrosion-resistant materials and accessible components for easier servicing.
Frequently Asked Questions
- What is a natural gas infrared heater best used for?
- Are these units suitable for residential use?
- Do I need special ventilation?
- What factors influence efficiency?
- Which unit is best for a large warehouse?
- Do these units require professional installation?
Infrared heaters provide targeted heat via radiant energy, suitable for warehouses, workshops, and large open spaces.
Most listed models are marketed for commercial or industrial use; check local codes and product notes for residential eligibility.
Some units specify ventilation requirements; consult a licensed contractor to assess ventilation needs for your space.
Output BTU, tube length, and whether the heater is single or two-stage affect efficiency and heat distribution.
Units with higher BTU and longer radiants, such as 100,000–150,000 BTU models, are typically better suited for large spaces.
Yes, many listings require licensed installation and compliance with local electrical and gas codes.