Use and Care Manual
The water heater must be installed level in order for the condensate to proper-
ly flow out of the collection system.
C. CLEARANCES FOR SERVICE ACCESS
See Table 6 for recommended service clearances. If these minimum clearances are not provided, it may not
be possible to service the water heater without removing it from its’ location.
B. LEVELING
Space must be provided with combustion/ventilation air openings correctly sized
for all other appliances located in the same space as the water heater. The water
Vents must be properly supported. The water heater exhaust and intake con-
nections are not designed to carry heavy weight. Vent support brackets must
be within 1’ of the water heater and the balance at 4’ intervals. Venting must
be readily accessible for visual inspection for the first 3’ from the water heater.
NOTE: The exhaust vent piping for this direct vented appliance is approved for zero clearance to com-
bustible construction.
NOTE: If the water heater is installed in a narrow space or corner, ensure that there is sufficient space
for service and maintenance access. There should be easy access to the gas and water lines and internal
components for future service. A combustible door or removable panel is acceptable front clearance.
D. RESIDENTIAL GARAGE INSTALLATION
If the water heater is located in a residential garage, per ANSI Z223.1:
Mount the bottom of the water heater a minimum of 18” above the floor of the garage, to ensure the
burner and ignition devices are well off the floor. Locate or protect the water heater so a moving vehicle can-
not damage it.
E. EXHAUST VENT AND INTAKE PIPE
Table 6 – Minimum Installation and Service Clearances
MINIMUM CLEARANCES
Installation Clearances for Non-Combustibles/ Combustibles Recommended Service and Proper Operation Clearances
To p 9 in. (228.6 mm) 9 in. (228.6 mm)
Back
5/8 in. (15.9 mm) 5/8 in. (15.9 mm)
Front 6 in. (152.4 mm)
24 in. (609.6 mm.) or more (Front of Water heater) (A combustible
door or removable panel is acceptable front clearance.)
Right Side
3 in. (76.2 mm) 3 in. (76.2 mm)
Left Side
Bottom 12 in. (304.8 mm) 12 in. (304.8 mm)
17
CAUTION
WARNING
WARNING
heater cover must be securely fastened to prevent it from drawing air from the water heater room. This
is particularly important if the water heater is in a room with other appliances. Failure to comply with the
above could result in substantial property damage, severe personal injury, or death.