P-K SOLIS™
Gas Fired Boiler
Technical Service 1.877.728.5351
Revised: March 15, 2021
Released: March 15, 2021
Patterson-Kelley 2021
All Rights Reserved.
2701000090 P-K SOLIS NURO Installation and
Owners Manual (Rev A).docx
Page 5
Clearances
If the boiler is to be installed near combustible surfaces, the minimum clearances are shown in the
illustration below. Failure to provide adequate service clearances, even with non-combustible surfaces,
may present problems during routine maintenance of the boiler.
Maintain a clearance from the vent to
combustible surfaces of 24” or as specified in the vent manufacturer’s listed installation instructions.
The boiler must be installed in a space large in comparison to the boiler as described in the National
Fuel Gas Code, NFPA 54/ANSI Z223.1, Latest Edition.
Type of Surface
Dimensions (inches)
A
B
C†
D
E
CSA Minimum Clearances to Combustibles
0
22*
0
0
0
Clearance to Non-Combustible Surfaces
0
0
0
0
0
Recommended Service Clearances
30
22*
24†
0**
12
* “B” Clearance depends upon exhaust vent configuration.
† “C” Space required for pipes, ducts, etc. in this area above the boiler.
** Do not put pipes, ducts, vents, etc. in this space. Electrical conduit must be installed vertically so that
the side doors can be opened
.
Note:
Failure to provide recommended service clearances may make it difficult to perform service
on the boiler(s).
