User guide
CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
10 
SECTION 5: MAJOR COMPONENTS 
FIGURE 13: Major Component Descriptions
Burner with Tube Gasket
Must be installed with the 
flame observation 
window facing down.
Reflector 
(Aluminum or 
Stainless 
Steel)
Alternate overlap as 
shown on overview and 
on Page 16, Figure 16. 
Minimum overlap is 6" (16 cm).
Tube and Reflector Hanger 
with Clamp Package
Position this hanger no more 
than 4" (10 cm) away from the 
burner.
Coupling Assembly 
with Lock
Reflector End Cap
Punch out center 
section to 
accommodate tube.
Tube and Reflector Hanger
Suspend system from these 
hangers.
Flex Gas Line with 
Shut Off Cock
Tube
Hot rolled or heat 
treated aluminized tube 
supplied in 10' (3 m) lengths.
Burner Tube
Supplied in 10
' 
(3 m) lengths. Burner 
tube is always the first tube 
after the burner.
Reflector Support Strap & 
Wire Form
Turbulator
Turbulator must 
be installed in the last 
standard section of tube. 
Turbulator is not required on the 
CTH2-125/150/175. For 
installation see Page 20, 
Section 6.4.
Vent Adapter










