HTP ELP-199 - Manual (Page 29)

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LP-294 REV. 2.20.14

The exhaust and intake components installed with this boiler must be used for near boiler piping BEFORE transitioning to the
approved materials listed above. DO NOT REMOVE these installed components. Doing so WILL VOID appliance warranty.

PVC/CPVC pipe and fittings of the same diameter are considered interchangeable.

Do NOT use Foam Core Pipe in any portion of the exhaust piping from this boiler.

DO NOT connect PVC/CPVC to PP without an approved vent connector.

When installing AL29-4C vent piping, install a PVC-to-stainless adapter at the boiler vent connection, and at the termination
when using an HTP PVC termination kit. DO NOT mix AL-29-4C piping from different manufacturers unless using adapters
specifically designed for the purpose by the manufacturer.

*PVC-DWV for air intake applications ONLY.
Failure to follow these directions will result in substantial property damage, severe personal injury, or death.
DO NOT mix components from different venting systems. The vent system could fail, causing leakage of flue products into the living
space. Use only the approved pipe and fitting materials, and primer and cement specifically designed for the material used, as listed in
Table 11. Failure to do so could result in property damage, severe personal injury, or death.
Exhaust vent adaptors are not designed as load-bearing devices, and must not be used to support exhaust vent piping. All vent pipes
must be glued, properly supported, and the exhaust must be pitched a minimum of ¼” per foot back to the appliance to allow drainage
of condensate. Failure to properly support vent piping and follow the information in this statement could result in product damage,
severe personal injury, or death.
NOTE: The use of double-wall vent or insulated material for the combustion air
inlet pipe is recommended in cold climates to prevent the condensation of
airborne moisture in the incoming combustion air.
C. REQUIREMENTS FOR INSTALLATION IN CANADA
1. Installations must be made with a vent pipe system certified to ULC-S636.
IPEX is an approved vent manufacturer in Canada supplying vent material
listed to ULC-S636. Additionally you may use AL29-4C stainless steel venting
to comply with Canadian requirements.
2. The first three (3) feet of vent pipe from the boiler flue outlet must be readily
accessible for visual inspection.
3. The components of the certified vent system must not be interchanged with
other vent systems or unlisted pipe / fittings.
Cellular foam core piping may be used on air inlet piping only.
NOTE: The use of double-wall vent or insulated material for the air inlet is
recommended in cold climates to prevent the condensation of airborne
moisture in the incoming combustion air.
You must not use “B” vent in an exhaust application. “B” vent is for intake applications ONLY. Using “B” vent in an exhaust application
will result in serious injury or death.