Combat® UHD[S] 75 - UHD[S] 125 Clearances and Dimension Data
Clearances to Combustibles - Low Profile UHD[S] Range (Models 75 - 125)
Above Heater | Below Heater | To Side of Heater | Access Side Door | To Flue |
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1" | 1" | 1" | 18" Access Clearance | 2" |
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Dimension Data - | UHD[S] Range (Models 75 - 125) |
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Model |
| 75 | 100 | 125 |
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'A' Height | [in] | 17.75 | 23 | 23 |
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'B' Duct Connectors | [in] | 1.25 | 1.25 | 1.25 |
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'C' Center of Flue [Top Option] | [in] | 5.2 | 6.9 | 6.9 |
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'D' Center of Flue | [in] | 2.5 | 2.5 | 2.5 |
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Top View
B 
16.63"
B 
Side View
20.25”
17.63"
| 4 x 3/8” Captive Nuts Provided |
| Air Intake |
18.25” | (UHDS only; Optional Position) |
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| Flue |
6" | (Optional Position) |
C
6.75”
Rear View | Flue |
D
6” 
6.75”
A
Air Intake
6” 
(UHDS only) Thermostat Connection
Gas Supply 
1.8”
Electrical Supply
28.5”
1.5”
3.3”