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Venting references

Noritz has a complete line of Stainless Steel (Category III) venting. Residential and commercial tankless gas water heater installations are required by code to use stainless steel venting (exception: NRC111 and NCC199 models may use PVC) and we manufacture all the components necessary to meet those requirements. We offer a complete line of vertical and horizontal 3″, 4″, and 5″ venting for many applications, positioned to be the best tankless water heater manufacturer for all of your professional needs.

NOTE: Existing water heater vent must be replaced when installing a tankless water heater. Proper venting is required to help protect the heater from corrosion damage, but most importantly it is required by code to prevent gas leaks in the exhaust vent.

Download a complete accessories catalog here.