SunStar Industrial 100K BTU/20ft Straight Tube Heater/NG/Single Stage
Features:
- Available in Btu sizes from 25,000
- Compact size – overall length is 9’2″ for ease of installation
- Efficiencies range up to 84.5%
- Models for both natural and propane gas
- Installation as low as 8ft above floor
- CSA Design Certified for residential & commercial Installations
- Includes 36″ stainless steel gas connector
- Completely aluminized steel construction for high humidity and corrosive environments
- Products of combustion are pulled through the combustion chamber for greater safety - virtually eliminates the possibility of combustion gases leaking into the heated space
- Reliable electronic direct spark ignition system with 100% gas safety shut-off control and 30-second pre-purge - safety and efficiency assurance
- U-Tube Design provides uniform emitter tube temperatures and energy distribution on the floor unlike straight tube heaters which are always hotter at the burner end than at the exhaust end
- Heavy-duty combustion chamber, aluminum reflectors with 97% reflectivity rating, diaphragm safety switch for proof of venting, and system indicator lights
- Natural Gas
- 45,000 BTU
- 4" vent connection
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What Our Experts Think
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Reliable Natural Gas Heating: 100,000 BTU output delivers steady radiant warmth for medium commercial or industrial spaces
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20 ft Straight Tube Design: Radiant heat travels the length of the tube to spread warmth evenly across the area
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Durable & Dependable: Heavy-duty burner with enclosed combustion chamber and spark ignition ensures consistent performance
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Single-Stage Operation: Provides stable, uninterrupted heat output without cycling complexity
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Commercial-Grade Performance: Ideal for warehouses, workshops, garages, and other large open work environments
Q&A
Q: What fuel does this heater use?
A: Natural Gas (NG)
Q: How much heat does it produce?
A: 100,000 BTU
Q: What’s the benefit of the straight tube design?
A: Radiant heat travels along the tube to provide broad, even coverage across your space
Q: Can it be installed in different configurations?
A: Yes — supports horizontal or angled mounting with sidewall or roof venting
Maintenance Tips
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Clean Burners & Tube: Remove dust and debris regularly to maintain heating efficiency
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Inspect Ignition & Safety Controls: Ensure spark ignition and safety shut-offs function properly
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Check Venting Clearance: Keep exhaust and intake paths clear of obstructions
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Annual Professional Service: Have a qualified technician inspect gas connections and performance
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Inspect for Wear: Periodically check tube and reflector surfaces for corrosion or damage
Damage 
Loss 
Theft 
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