460906 Rev. D 8/2020 MASTERTEMP
125 Pool and Spa Heater Installation and User’s Guide
29
Outlet Air
Opening
Inlet Air
Opening
Chimney or Gas Vent
Vent Cap and
Riser Furnished
by Installer
Side
Wall Vent
Heater
Chimney or Gas Vent
Vent Cap and
Riser Furnished
by Installer
Side
Wall Vent
Outlet Air Opening
Inlet Air Opening
Figure 22. Figure 23.
Outlet Air
Opening
Inlet Air
Opening
Chimney or Gas Vent
Vent Cap and
Riser Furnished
by Installer
Side
Wall Vent
Heater
Chimney or Gas Vent
Vent Cap and
Riser Furnished
by Installer
Side
Wall Vent
Outlet Air Opening
Inlet Air Opening
Section 1. Installation Instructions
NOTE: After installation, installer must check for correct and safe operation of the heater.
WARNING
Fire Hazard. Do not run the heater vent into a common vent with any other appliance. Do not run the Special Gas Vent into,
through, or within any active vent such as a factory built or masonry chimney.
8. VentTermination–Horizontal(Continued)
Allow at least 1 M (3 ft) vertical clearance over vent
termination when terminating under an overhang or deck.
Avoid corners or alcoves where snow or wind could have
an effect. Exhaust may affect shrubbery and some building
materials. Keep shrubbery away from termination. To
prevent staining or deterioration, sealing or shielding
exposed surfaces may be required. See Figure 24.
Condensate
drain w/Trap
Condensate
Tee
Support
weight
of pipe
Listed
Terminal
Metal Special
Gas Vent
requires
Appliance
Adapter
Metal
Vent
Body
Slope at least
(1/4" per foot)
2 cm per Meter
down towards
condensate drain
(Optional)
Figure 24.