Rinnai Primary-Secondary Heating Kit for I-Series Combination Boilers smokey flavor this durable recess box allows

this durable recess box allows you to conceal your non-condensing Rinnai water heater neatly within the wall

Free curbside delivery included

Ease of Serviceability – Simplified maintenance with accessible internal components

Measuring an impressive 117 inches in length

Rinnai Primary-Secondary Heating Kit for I-Series Combination Boilers smokey flavor this durable recess box allowsUpgrade your heating system with the Rinnai Primary Secondary Heating Kit, engineered exclusively for Rinnai I Series Combination Boilers. This kit ensures efficient water circulation and hydraulic separation between your boiler loop and central heating loopdelivering consistent performance, reduced maintenance, and maximum heating efficiency. Perfect for multi zone and multi temperature systems, this Rinnai accessory eliminates complex flow