Vent Termination; Coaxial Venting Instructions; Approved Polypropylene Manufacturers - Baxi LUNA DUO-TEC 60 GA Notice D'installation

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3.
All piping, glue, solvents, cleaners, fittings and components must conform to ASTM and ANSI standards.
In Canada ULC S636 and in the USA UL 1738 schedule 40 CPVC are the only approved vent system to be used as an
alternative to polypropylene venting for the exhaust pipe.
4.
Manufacturer requires use of a mechanical fastener at every push-fit gasket connection when using a single wall polypropylene
vent system.

6.6 Vent Termination

• Terminate combustion air and vent pipes with fittings or coaxial vent kit.
Use horizontal pipe for vent and 90° elbow for combustion air termination when using fittings.
• Separate vent terminal from air inlet terminal to prevent flue gas recirculation. If T-Terminal is used on flue pipe at sidewall, air
inlet terminal shall be at least 36" or more away from vent terminal.
• Locate combustion air termination as far as possible from swimming pool, swimming pool pump house, and other sources of
airborne chlorine.
• Locate combustion air and vent terminals as required by authority having jurisdiction.

Approved Polypropylene Manufacturers

* Natalini
* DuraVent
®
*Centrotherm
* Z-Flex
®
Note: Maximum equivalent length may vary between manufacturers.
1
5"/3" [125 mm/80 mm] polypropylene coaxial.
3" [80 mm] polypropylene twin pipe.
2
Shall be polypropylene on BOTH intake and exhaust.
3
3" [80 mm] flexible polypropylene for chimney exhaust vent, shall have rigid 3" [80 mm] polypropylene on air intake.
3" [80 mm] Twin pipe CPVC.
4
PVC optional on intake ONLY.
* Note: Adapters and fittings used with all vent systems shall be from same manufacturer and compatible with the vent pipe. See list for approved
Manufacturers.

6.7 Coaxial Venting Instructions

Maximum equivalent flue lengths for Coaxial venting are:
Coaxial Pipe Maximum Vent Lengths
Boiler Size
1.48 GA & 60 GA
Vent Size
5"/3" [128 mm/ 80 mm]
Natalini
32.80 ft [10 m]
DuraVent
32.80 ft [10 m]
®
Centrotherm
32.80 ft [10 m]
Coaxial Elbows - Equivalent length
4" [100 mm/60 mm]
45°
90°
5" / 3" [128 mm/80 mm]
45°
90°
240012485 REV A [12/30/2018]
1.48 GA & 60 GA - Vent Material Options
1.64 ft. [0.5 m]
3.28 ft. [1.0 m]
1.64 ft. [0.5 m]
3.28 ft. [1.0 m]
24

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Luna duo-tec 1.48 ga

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