Munchkin 399M - Manual (Page 16)

16
**IMPORTANT NOTE: All vent pipes must be glued, properly supported and the exhaust must be pitched a
minimum of a ¼" per foot back to the heater (to allow drainage of condensate).
Figure 4-3a: 4" Roof Vent with Tee (Intake) & Coupling (Exhaust)
DIAGRAM FOR VERTICAL VENTING
VENTING
**IMPORTANT NOTE: All vent pipes must be glued, properly supported and the exhaust must be pitched a
minimum of a ¼" per foot back to the heater (to allow drainage of condensate).
Figure 4-2a: 4" Sidewall Vent with V2000 kit
DIAGRAMS FOR SIDEWALL VENTING (cont’d)