Save energy with high efficiency water boilers and water heaters
When you want to upgrade to a more efficient boiler with a more energy efficient one, we help you determine the best boiler type and size for your needs.
If you current boiler needs service, we’re here to help you 24/7 and our expert technicians can quickly diagnose the problem.
We install and service all boiler types including:
For 60 minute service, guaranteed up-front pricing and 27 years of experience, why wait? Call us today at 412-848-3253 – we’re available 24 hours a day, 7 days a week.
Ultra High Efficiency Water Boilers
Great Savings – The superb efficiencies and state-of-the-art combustion systems of the TRINITY mean little heat is wasted, less natural gas or propane is used, and homeowners save money.
Lots of Hot Water – The TRINITY’S high-capacity heat exchanger coil provides ample hot water for every household need, at a very low cost.
Years of Dependability – NTI customers know…our boilers are built to last a lifetime! With an advanced ignition system, and a top-quality heat exchanger, the TRINITY represents the highest standard in top-quality boilers.
Environmental – The TRINITY meets or exceeds North American energy and emissions regulations. We’re doing our part to protect the environment for the future.
High Efficiency Combination Boilers
Naviens condensing combination gas boilers has dual stainless steel heat exchangers. PVC intake and exhaust venting eliminating old chimney problems. Endless domestic hot water for 2-3 showers at the same time. Navien gas combination boiler has a modulating burner, outdoor reset control is ASME H stamp rated and has a 92% AFUE efficiency rating. The Navien combination boiler is wall mount.
For 60 minute service, guaranteed up-front pricing and 27 years of experience, why wait? Call us today at 412-848-3253 – we’re available 24 hours a day, 7 days a week.
Standard Efficiency Raytherm® Atmospheric Residential Boilers
Quit struggling with bulky, heavy, out-of-date cast iron boilers. Raytherm copper fin tube residential boilers are low-mass and have high recovery rates. They’re small enough to fit almost any space and fuel-efficient for utility savings. With five sizes to choose from, there is a copper fin tube Residential for every home, apartment or condominium.
Indirect Water Heaters
The exclusive design allows for the continuous production of domestic hot water without the use of a coil. Hot water from any boiler is circulated around a corrugated stainless steel tank for safe, efficient hot water at the lowest possible operating cost.

- Exclusive “Tank-in-Tank” technology
- Abundant domestic hot water at the lowest possible cost
- A limited lifetime warranty
- 2″ of polyurethane foam insulation
- Lowest pressure drop in the industry
- Self cleaning/self descaling heat exchanger
- 8 sizes to choose from
For 60 minute service, guaranteed up-front pricing and 27 years of experience, why wait? Call us today at 412-848-3253 – we’re available 24 hours a day, 7 days a week.










