Approved Pipe; Use Of Elbows; Measuring Standards - Heatilator HEIR36H Installation Manual

C. Approved Pipe
This appliance is approved for use with Hearth & Home
Technologies DVP venting systems. Refer to Section
12.A for vent component information and dimensions.
DO NOT mix pipe, fi ttings or joining methods from differ-
ent manufacturers.
The pipe is tested to be run inside an enclosed wall.
There is no requirement for inspection openings at each
joint within the wall.
WARNING! Risk of Fire or Asphyxiation. This appli-
ance requires a separate vent. DO NOT vent to a pipe
serving a separate solid fuel burning appliance.
D. Use of Elbows
Diagonal runs have both vertical and horizontal vent
aspects when calculating the effects. Use the rise for the
vertical aspect and the run for the horizontal aspect. See
Figure 4.4.
Two 45º elbows may be used in place of one 90º elbow.
On 45º runs, one foot of diagonal is equal to 8-1/2 in. (216
mm) horizontal run and 8-1/2 in. (216 mm) vertical run. A
length of straight pipe is allowed between two 45º elbows.
See Figure 4.4.
Figure 4.5 shows the vertical and horizontal offsets for
DVP elbows.
VERTICAL
Effective Length
DVP
Pipe
Inches Millimeters
DVP4 4 102
DVP6 6 152
DVP12 12 305
DVP24 24 610
DVP36 36 914
DVP48 48 1219
DVP6A 3 to 6 76 to 152
DVP12A 3 to 12 76 to 305
Figure 4.4
18
RUN
HORIZONTAL
Rise/Run
Inches Millimeters
2-3/4 70
4-1/4 108
8-1/2 216
17 432
25-1/2 648
34 864
2-1/8-4-1/4 54-108
2-1/8-8-1/2 54-216
Heatilator • HEIR36, HEIR42, HEIR50 Installation Manual • 2285-980 Rev. G • 12/14
X
X
Vent
Type
Inches Millimeters Inches
DVP 4-1/2
X
Vent Type
DVP
Figure 4.5 Vertical and Horizontal Offset for DVP Elbows
E. Measuring Standards
Vertical and horizontal measurements listed in the vent
diagrams were made using the following standards:
• Pipe measurements are shown using the effective length
of pipe. See Section 12.A for information on effective
length of pipe components.
• Horizontal terminations are measured to the outside
mounting surface (fl ange of termination cap) (see Figure
4.3).
• Vertical terminations are measured to bottom of
termination cap.
• Horizontal pipe installed level with no rise.
Y
Y
Millimeters
114 17 432
X
X
Inches Millimeters
16-1/4 413