Rinnai 227413 Condensing Vertical Vent Starter Adapter, 2 in./4 in.

The Rinnai 227413 is the starting fitting for a vertical 2 in./4 in. (60/100) concentric vent run, connecting Rinnai condensing tankless water heaters to vent pipe that rises straight up toward the roof.

Each piece pairs a 4 in. plastic outer pipe that brings in combustion air with a 2 in. polypropylene inner pipe that carries flue gases out. It fits the Rinnai RU199i, RU180i, RU160i, RU130i, RUR199i, RUR160i, CU199i and CU160i condensing tankless models. Keep the run made of these matching components only, avoid mixing in other vent hardware, and follow the water heater installation manual for the full installation requirements.

Highlights

• Begins a vertical 2 in./4 in. concentric vent run

• Fits Rinnai RU199i, RU180i, RU160i, RU130i, RUR199i, RUR160i, CU199i and CU160i

• PPtl polypropylene components carry no approval for Canadian installations

• 4 in. plastic intake shell over a 2 in. polypropylene exhaust

Specifications