Navien equipment expertise

Navien comfort systems, selected and supported by Green Flow

Green Flow Solution helps homeowners and property teams evaluate, install, commission, maintain, and service Navien equipment. Navien is known for water heating products such as tankless water heaters, combi-boilers, condensing boilers, and commercial hot water systems. The brand also offers HVAC equipment including air conditioners, heat pumps, hydronic furnaces, air handlers, and cased coils for residential, multi-unit, and light-commercial comfort needs.

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Contractor statusNSS & HVAC Partner ProTrained & Certified

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From selection through service

One team for the life of your Navien system

Product knowledge matters most when it translates into better decisions, documented installation, and responsive support after the equipment is operating.

System planning

We assess the building, comfort goals, fuel source, electrical capacity, distribution, and project constraints before recommending an equipment path.

Installation & commissioning

Our team coordinates equipment, controls, startup, operating checks, and the project records needed for a complete handoff.

Maintenance & diagnostics

We support routine maintenance, operating concerns, error-code evaluation, repair planning, and replacement decisions across Navien product families.

Warranty & documentation

We coordinate warranty paperwork by organizing model and serial records, installation documents, invoices, registrations, and manufacturer claim materials.

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Navien solutions