SunStar

Tube Heaters :: SIR Series

SIR Series Features

Available in Btu sizes from 25,000 to 45,000
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 8' above floor
Optional deflector kit for reduced clearances below
CSA Design Certified

Introducing TISS^TM Tube Integrity Safety Shut-Off System

Space-Ray’s patent pending innovative safety feature for positive pressure radiant tube heaters is called the “Tube Integrity Safety System” (TISS™).

In the unlikely event of a tube failure, TISS™ has been designed to automatically shut off the heater. The revolutionary TISS™ uses a simple principle to place an electrically insulated aluminum wire in tension above the reflector. Low voltage is then continuously passed along the wire in line with the gas control circuit. If heat levels increase due to heat exchanger failure, the wire melts and the safety circuit is broken, breaking the 24 volt circuit and shutting down the heater.

You may never know it is there, but it provides peace of mind.

SIR Technical Features

Vacuum System
Products of combustion are pulled through the combustion chamber for greater safety
. . . virtually eliminates the possibility of combustion gases leaking into the heated space.
Solid State Ignition System
Reliable electronic direct spark ignition system with 100% gas safety
shut-off control and 30-second prepurge . . . 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.
Warranty
5-year limited combustion chamber warranty.
Other Features
Heavy-duty combustion chamber, aluminum reflectors with 97% reflectivity rating,
diaphragm safety switch for proof of venting, and system indicator lights.

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SIR Technical Specifications

Model Number	Input BTU/Hour
SIR25	25,000
SIR35	35,000
SIR 45	45,000

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SIR Dimensions Chart

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SIR Supply Requirements

Type Gas	Burner Pressure	Supply Pressure
Natural	3.5" W.C.	5" W.C. min - 14" W.C. max
Propane	10" W.C.	11" W.C. min - 14" W.C. max

Electrical Requirements: 120 VAC, 60 HZ, 2.4 amps. Flue connection: 4" round. Optional outside combustion air connection: 4" round.

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SIR Clearance to Combustibles

Model No.	Mounting Angle	Side Front	Side Rear	Ceiling	Below	Ends
SIR 25	0°	8"	8"	4"	41"*	12"
SIR 25	45°	30"	4"	4"	41"*	12"
SIR 35 or 45	0°	12"	12"	4"	57"**	12"
SIR 35 or 45	45°	40"	4"	4"	57"**	12"
* 33" with deflector **42" with deflector

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SIR Model Selection Guidelines

	Properly selected heaters will provide the most efficient operation for your installation. The models recommended are selected for a 22' x 28' two-car or a 26' x 32' three-car insulated garage. Select the model number corresponding to the geographic location in which the heater will be installed. Model size is determined by garage heat loss. Please consult your SunStar distributor to determine the heat loss for your particular application.
	Zone Model
	I and II	SIR 25
	III and VI	SIR 35
	IV and V	SIR 45

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