Wall Hung Instant water heater and 97% gas furnace install Framingham

We replaced a old 80% gas furnace with a new Trane 97% gas furnace and installed new Trane A/C 16 Seer system. In addition we replaced old gas 40 gal water heater and installed a Navien 98% wall hung tankless water heater. Customer got a 0% financing loan for 7 years through mass save for the whole project. They also got $1650 back in rebates and are saving 20-30% on their heat and hot water.