This combi water heater and furnace from NTI is a cross-breed  of best practices from hydronics, tankless water heating and forced air heating.  If you have a furnace and want an efficiency of a boiler, space savings of a tankless and do not want to loose your ductwork, we have the right solution for you!


Two in one combo! A airhandler and a water tank all in one.  Get rid of your water heater and your furnace!

Consider some of it’s key features:

  • Industry’s best combi-furnace
  • With full modulation, one size fits all
  • 5 GPM @ 80 degree F temperature rise
  • Low NOx emissions / NSF low Lead Certified
  • Stainless steel heat exchangers for long lasting life and durability
  • Internal recirculation and buffer tank
  • Small footprint – simple installation



With its outstanding performance and unparalleled features, the Green Furnace is the future of hot water and heating for your home in Toronto.  Our customers love it. The Boiler Guys online at and view our products that will enhance your home.