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23
VENTING
The venting instructions must be followed to avoid restricted combustion or recirculation of flue gases.
Such conditions cause sooting or risks of fire and asphyxiation.
Models TG-150I-N(X), TG-180I-N(X), and TG-199I-N(X) are a direct vent design with a single coaxial vent
tube in which the flue products are discharged to the outdoors through the center flue tube and
combustion air from outdoors is taken through the outside intake air pipe surrounding the center flue
exhaust pipe.
Models TG-237I-N(X) and TG-237I-N(X)A are a direct vent design utilizing two separate pipes for venting;
and, these models still take their combustion air from the outdoors, as well as discharge their flue
products to the outdoors.
All venting components must be ordered separately from the supplier of this water heater or through the
suppliers listed in this manual. These water heaters must use the venting components designed for
EverHot
TG series water heaters. The EverHot standard horizontal vent kit available for this water
heater consists of one 90 horizontal discharge adapter and one horizontal vent termination kit. These
components are suitable for mounting on an outside wall. If longer venting distances are required,
additional venting components are available from the supplier of the suppliers listed in this manual.
NOTICE
The minimum and maximum wall thicknesses for sidewall venting are the following: 4 in. (10.2 cm)
minimum, 20 in. (50.8 cm) maximum.