5.3.1
ceiling
service clearances to the boiler
Minimum required clearances
Top of boiler
Back of boiler
Front of boiler
Left side of boiler
Right side of boiler
Floor / Ground to
bottom of boiler
Vent
clearances to the boiler
For closet installation: clearance is 1" / 25mm from the front.
Clearances from boiler
Min. 10" /
250mm
15.7"
24"
400
600
to combustibles
All types
inch / mm
0"
0"
1" / 25
0"
0"
0"
0"
2"
50
Minimum required clearances
to non-combustibles
All types
inch / mm
0"
0"
1" / 25
0"
0"
0"
0"
2"
50
figure 4
Required
service clearances
All types
inch / mm
10" / 250
0"
24" / 600
2" / 50
2" / 50
10" / 250
30" / 762
is recommended
0"
table 3
13