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NTI Boiler Installation & Service — San Francisco

Hydroflow is a trained NTI contractor serving San Francisco. North American-made, Energy Star certified high-efficiency boilers and combi-furnaces.

Trained NTI Contractor

North American-Made Boilers with Contractor-Level Support

Hydroflow is a trained NTI contractor. We are experienced in installing and servicing NTI's full line of high-efficiency gas boilers and combi-furnaces across San Francisco. Our technicians understand the nuances of these systems. We appreciate NTI's commitment to quality and their contractor support model. Their boilers are a strong option for homeowners looking for a reliable, high-efficiency heating solution backed by excellent local contractor support — a rarity in the high-efficiency boiler market.

NTI Products We Install:

  • Tft Series — high-efficiency fire tube boilers with a user-friendly interface
  • Tx Series — compact affordable condensing boilers for residential use
  • Vmax Series — premium condensing with built-in primary/secondary piping

Why Choose NTI

Family-Operated, North American Manufacturing, Energy Star Rated

NTI is a family-operated business based in North America, known for manufacturing high-quality, innovative heating products. Unlike many competitors that offshore manufacturing, NTI maintains strict quality control through North American production. All NTI boilers are Energy Star certified, helping reduce your heating costs. Their Vmax series includes built-in primary/secondary piping — a feature that simplifies hydronic system design and reduces install complexity for radiant heating applications.

NTI Advantages:

  • North American Manufacturing — family-operated with rigorous quality control
  • Energy Star Certified — all models meet federal high-efficiency standards
  • Innovative Design — Vmax series built-in primary/secondary piping simplifies radiant systems
  • Proven Reliability — top-tier components with rigorous factory testing
  • Excellent Contractor Support — direct access to NTI technical support

NTI Services We Offer

Combi-Furnace Install

NTI combi-furnaces provide both space heating and domestic hot water from a single compact unit — a great alternative for homes that need both without the space for separate appliances.

Combi Install

Maintenance & Repair

Annual NTI maintenance including combustion chamber cleaning, spark gap check, low water cutoff testing, and system fluid pH verification for stainless steel heat exchangers.

Annual Maintenance

NTI FAQ

Schedule Your NTI Boiler Service Today

Trained NTI installation, maintenance, and repair across San Francisco and Marin County.

Trained NTI Contractor • SF & Marin County • Licensed & Insured