1/2" Oxygen Barrier Tubing - 500 Ft. EK906 kit contains the components you

kit contains the components you need all in one box to vent a 4" tankless water heater

Gaskets must be in proper position or flue gases could leak resulting in carbon monoxide poisoning

With push-fit clamp

Manifold Pressure Gauge Connector

Flashing for use in flat roof or chimney application

1/2" Oxygen Barrier Tubing - 500 Ft. EK906 kit contains the components youUse only oxygen barrier tubing for a radiant heating system. Spacing for 1 2 tubing is usually 12 on center with a maximum sidewall height of 12 ft. You should have a minimum of R19 wall insulation, R38 ceiling insulation with 2 of extruded styrene insulation under and around the slab.