User Manual

Installation
90 Degree
Model No. Type Diameter/In. Length/Ft. Elbows
PDWH750 PVC 4 10 Minimum 0
4 35 Maximum 4
PDWH1000 PVC 4 10 Minimum 0
4 35 Maximum 4
Number of
90 Degree
Model No. Type Diameter/In. Length/Ft. Elbows
PDWH750 Stainless Steel 4 10 Minimum 0
4 35 Maximum 4
PDWH1000 Stainless Steel 4 10 Minimum 0
4 35 Maximum 4
Figure 1
9-PDWH
*Clearence from top
of water heater to
combustables must
be no less than 12”.
AIR INTAKE PIPING
Number of
EXHAUST VENT PIPING