Pitot Tube Information; Horizontal Vent System Clearances; Wall Pass-Through - Heat & Glo Foundation Series Installation And Operating Manual

B. PITOT TUBE INFORMATION

There is a 1/4" pitot tube mounted in the center of the flue collar and is
connected to the pressure switch (Figure 8B).
This monitors the pressure in the flue and is necessary for proper operation.
Take care to keep the end of the tube clean.
IMPORTANT: THIS TUBE MUST NOT BE BENT, CLOGGED,
REMOVED, OR ALTERED IN ANY WAY.
C. HORIZONTAL VENT SYSTEM CLEARANCES
ALL APPROVED VENTING
HORIZONTAL
D. WALL PASS-THROUGH - Follow all local codes for requirement of firestops.
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Heat & Glo • FDN-4-ST, FDN-5-ST, FDN-6-ST, FDN-7-ST Installation Manual • 16400-9801 Rev. H • 11/19
TOP
1 inch (25mm)
BOTTOM
1 inch (25mm)
Figure 8B
Pitot Tube is
mounted in the
center of the
flue collar
SIDES
1 inch (25mm)