
SECTION 7: OPTIONAL HEATER ACCESSORIES
FIGURE 18: U-Tube  Heater Assembly Overview
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 | Support Bracket | 
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 | Reflector | 
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 | Support | 
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| Burner Vent Adapter | 
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 | Turbulator | Reflector | |
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 | (With Select | ||
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 | Models) | 
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| Tube Clamp | 
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 | Burner | Tube | 
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| Package | 
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 | Tube | 
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 | Couplings | 
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| 1 | 2 | 
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 | Reflector | ||
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 | End Caps | 
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| 45° | 
 | Tight  | Loose  | 
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 | 2 | 4" (10 cm)  | 2 4" (10 cm)  | 
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 | secured to burner tube | secured to bracket with | 
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 | with 1/4" (.6 cm) | 1/4" (.6 cm) lockwashers | 
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 | lockwashers and | and 1/4" (.6  | 
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 | 1/4"(.6 cm)  | 
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 | allow for tube expansion | |
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 | and contraction. | |
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 | 18" (46 cm) | 
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 | Center to Center | |
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| Opposite 45° | 
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 | Nut | 
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 | Lock Washer | 
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 | Lock Washer | 
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 | Nut | 
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| 1 | 2 | 
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