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WARNING
Below are general clearance requirements:
All clearances must conform with local codes or, in
the absence of local codes, with the National Fuel
Gas Code, ANSI Z223.1/NFPA 54, or the Natural Gas
and Propane Installation Code, CSA B149.1 (also
shown in the Rinnai Tankless Water Heater
Installation and Operation Manual).
If you do not have access to the above Standards or
the Rinnai Tankless Water Heater Installation and
Operation Manual, an excerpt has been provided in
Appendix A of this document.
1. Determine a suitable location for the recess box
that meets the installation clearances shown
below (Figure 2).
Figure 2
31 in. (0.79 m) to a soffit or
eve vent, or to a porch or deck
12 in. (0.30 m) to ground/snow line
IMPORTANT
•
All dimensions are from edge of box.
•
Tankless water heater/recess box assembly
are zero inches to all surfaces of the recess
box. A 24 in. (610 mm) clearance to
combustibles and non-combustibles must be
maintained from the front of the unit for
servicing.
9 in. (229 mm)
to inside corner
WARNING
•
Local building codes may restrict the clearances
shown in this section. If you are unsure if the
clearances are acceptable in your area, consult
with local building officials to verify prior to
proceeding with installation.
•
Clearance to the gas meter and electric meter shall
be in accordance with local codes and the
requirements of the gas supplier or electric
supplier.
•
Ensure all clearances are met per the Rinnai
Tankless Water Heater Installation and Operation
Manual.
•
This recess box is designed to be installed between
2 studs in a wall cavity. Do not install the recess
box in any other type of configuration. Warranty
will be voided due to any improper installation.
Prepare an opening for the recess box to the following
dimensions below (Figure 3). The recess box is designed
to fit between 16 in. (41 cm) centered framing.
Figure 3
14.5 in.
36.8 cm
10.2 in.
25.9 cm
39.8 in.
101 cm
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