About Navien® Boilers
Innovations make Navien® condensing combi-boilers the best choice for homeowners.
The only compact combi-boiler strong enough to support DHW and heating for the whole house.
Protect the environment as you add value
Navien primary condensing stainless steel heat exchangers recover extra heat that would be lost in non-condensing tankless heaters to reduce energy consumption and CO2 emissions. That keeps exhaust temperatures very low - so low that economical Schedule 40 PVC pipe can be used for venting in almost all applications.