Clearances To Combustible Material - Watts Aerco TAG-0072 GF-146-E Operation & Maintenance Manual

AM Series Boiler & Water Heater User Manual
CHAPTER 3: INSTALLATION – SITE
Figure 3-3: AMR Option - Recommended Minimum Service Clearances
NOTE:
Service clearances are minimum required clearances for ease of access, but larger service
clearances are always preferred.

3.6 Clearances to Combustible Material

This unit may be installed directly onto a floor of combustible material with the following
clearances:
Table 3-1: Unit Installation Clearance Dimensions
COMPONENT
Ceiling
Front
Rear
Sides
Floor
Concentric vent
Split vent (two pipes) first 3 feet from the boiler
Split vent (two pipes) after 3 feet from the boiler
Boiler piping
OMM-0100_E • GF-146 • 11/15/2019
CLEARANCE DISTANCE
2 inches (51 mm)
2 inches (51 mm)
2 inches (51 mm)
2 inches (51 mm)
0 inches (0 mm)
0 inches (0 mm)
1 inch (25 mm)
0 inches (0 mm)
¼ inch (7 mm)
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