



Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The AO SMITH 100266134 is a straight concentric pipe vent kit designed for sealed combustion water heater installations. Concentric venting routes both the intake air and exhaust flue gases through a single penetration in the wall or ceiling, simplifying the rough-in and reducing the number of holes required in the building envelope. At 19.5 inches in length, this kit suits typical short-run sidewall venting applications. Licensed plumbers and HVAC technicians install this kit as part of a direct-vent water heater system where clean outdoor combustion air supply and safe flue exhaust are required.
This vent kit is used in residential and light commercial water heater installations where the appliance requires a concentric vent configuration. Straight runs are common in sidewall termination scenarios where the heater is located close to an exterior wall. The 19.5-inch length accommodates standard wall thicknesses and short offset distances between the appliance collar and the termination point. Installers working on direct-vent or power-vent water heater replacements will find this kit appropriate for maintaining proper draft and combustion air supply.
Designed as an OEM-style replacement vent kit for AO SMITH direct-vent water heater systems requiring a straight concentric pipe vent configuration.
Installation should be performed by a licensed plumber or qualified HVAC technician in accordance with local codes and the appliance manufacturer instructions. Shut off gas supply and power to the water heater before beginning any venting work. Ensure all vent joints are fully seated and secured according to the manufacturer assembly instructions to prevent flue gas leakage. Consult local mechanical codes and the International Fuel Gas Code for proper termination clearances and vent routing requirements.
Thanks for subscribing!
This email has been registered!

