12
30484 Rev Q
09/04
MAXUS DIRECT VENT HEATER
4. Top Venting
Use the 5 in. diameter collar assembly (with the
attached gasket) and the four screws removed earlier
to attach the collar assembly where the last plate was
removed. Take care not to strip the screws. Attach the
8 in. diameter collar assembly with four screws, to
where the second plate was removed on the inner
shell. Make sure the gasketing on the plate seals the
firebox inner shell. The third and final piece to install
has insulation attached to it and an 8 in. diameter
hole. This piece should fit around the 8 in. collar
assembly with the insulation going inside the outer
shell of the firebox. Attach with screws. See Figure 6.
Figure 6
Placement of Inner and Outer collars
5. Horizontal Termination
a.
Clearances
See Figures 7 and 8 for clearance information.
Figure 7
Venting Clearances to
Combustible Materials - Rear Venting
Figure 8
Venting Clearances to
Combustible Materials - Top Venting
WARNING!
Always maintain minimum air space clearances or greater around the vent system. See Figures 7
and 8. Do not pack air spaces with insulation or other material.