LTU Series – Radiant Tube Heaters for Commercial and Industrial Spaces
- Pull Through (Negative Pressure) System
- 19 different Btu sizes to custom design your radiant heating system
- Factory pre-assembled for easy and low cost installation
- Pull-through system for increased radiant efficiency and more uniform tube temperature
- Highly efficient aluminum reflectors designed for more uniform floor level radiant energy distribution
- Single stage or two stage modulation input
- Up to 75 ft. sidewall venting capability
- Up to 50 ft. outside combustion air ducting capability
Pull-Through System (negative pressure or vacuum)
- Pull-through system — the products of combustion are pulled through the combustion chamber for increased radiant efficiency and greater safety
- CSA certified for vertical or horizontal venting
- CSA certified for maximum 75 ft. horizontal sidewall venting
- 4″ O.D. flue connection for LTU40-LTU175; 6″ for LTU180-LTU250
- Draft inducer is equipped with permanently lubricated, totally enclosed, fan cooled and heavy duty ball bearing motor for maintenance free operation
- Draft inducer assembly can be used for through- the-roof-venting or rotated 45 degrees or 90 degrees for horizontal venting
- No draft hoods, totally enclosed combustion chamber
Burner System
- One piece cast iron burner with stainless steel flame retainer
- 10 year limited warranty on burner
- Inside or optional outside air for combustion
- CSA certified for 50 ft. outside combustion air inlet duct
- 4″ O.D. standard fresh air inlet duct opening for LTU40-LTU75; 6″ for LTU80-LTU250
- Burner inspection sight glass
- State-of-the-art step opening combination gas valve for quiet ignition
- Diaphragm Air Proving Switch — a safety device for proof of venting before gas flow and ignition
- Spark ignition system with 100% Gas Shut-Off Safety Control (30 second pre-purge)
- 36″ Stainless Steel flexible gas connector included with control box
Radiant Emitter Tube System
- All radiant emitter tubes are 16 gauge calorized steel — 3″ for LTU40-LTU75 and 4″ for LTU80-LTU250
- Body assembly for some models is 15′ long; other models require the use of additional 5′ and 10′ body packages
- Titanium alloy Alumi-Therm and aluminized steel emitter tubes are calorized for long life and high radiant efficiency
- The calorization process (PDF)produces an emitter tube which is highly radiant absorptive on the interior and highly radiant emissive on the exterior
- 5 year limited warranty on the emitter tube
Reflector System
- Fully factory pre-assembled on tube body to minimize field filed assembly and save installation labor cost
- Highly efficient aluminum reflectors with reflectivity rating of 97%
- Reflector ends are enclosed for maximum radiant heat output and minimum convection loss
- Easy to use mounting brackets
- Suitable for horizontal or angle mount up to 45 degrees
Other
- 3 Monitoring light system for on line diagnosis- power on, insufficient air flow, and ignition sytem operation
- Uncomplicated maintenance access
- Quick slip-on electrical connectors
- Quick 115 volt terminal block connection
- 1/2″ MPT gas inlet connection
- CSA approved for direct vented or indirect vented operation
- Optional deflector kit for reduced clearances to combustible materials
- Optional decorative grille kit for drop ceiling applications
- Optional side reflector kits
- CSA Certified according to ANSI Z83.20 and CSA 2.34. NOT Certified for Residential Use
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