Overview
The Rinnai i-Series combi combines a high-efficiency condensing boiler with an on-demand water heater in one wall-mounted unit. It heats your home through radiant floors or baseboard while providing unlimited hot water on demand — no storage tank required. One appliance replaces two.
Key Features
Perfect If You're Looking To…
Consolidate your boiler and water heater into one compact unit. Free up mechanical room space. Get endless hot water plus hydronic heating from a single appliance. Simplify maintenance with one unit instead of two.
Trusted Name in Hydronic Heating
Japanese Engineering
Rinnai has been engineering heating and hot water products since 1920. The i-Series condensing boiler combines over a century of expertise with modern modulating technology for maximum comfort and efficiency.
Professional Installation
H&C's licensed technicians are trained on Rinnai hydronic systems. Proper piping, venting, and water treatment are critical — we get it right so your system performs as rated.
Financing Available
Flexible payment options make the switch to heat pump technology affordable. Ask about our low monthly payment plans — combine with government rebates to reduce your out-of-pocket cost even further.
Not Sure Which Size
Is Right for Your Home?
Sizing a boiler correctly is critical — too small and your home won't reach temperature on the coldest days, too large and you waste gas. Our licensed technicians perform a free heat-loss calculation and recommend the right i-Series model for your home and distribution system.
Frequently Asked Questions
What's the difference between a boiler and a furnace?
How much more efficient is a condensing boiler?
What's the difference between heat-only and combi?
Can I use this with radiant floor heating?
What maintenance does a boiler need?
How long does installation take?
What GTA Homeowners Say
About Their Boiler
"Excellent customer service. Farshid and his team are knowledgeable, and were able to fix our heating issues in the dead of winter."
"We have been using H&C for many years now and once again, they were amazing. Farshid, Cameron, and Fred were extremely professional in helping us troubleshoot our furnace issue and got it back operating in no time. They were not only thorough but treated our furnace as if it was their own. Highly recommended if you are looking for qualified HVAC professionals."
"I had an excellent experience with Farshid at H&C. From the initial call and showing up to my place within 30 minutes to the completion of the service, their team was professional, responsive, and extremely knowledgeable. They arrived on time, explained the issue clearly, and walked me through the options without any pressure. The technicians were courteous, respectful of my home. I highly recommend H&C Heating and Cooling to anyone looking for dependable HVAC service. It's refreshing to work with a company that truly values customer satisfaction."
"Our furnace needed service… Fashid & his team came fixed the problem promptly… thank you so much"
"Very professional and easy to work with!"
Book Your Free
Boiler Consultation
Tell us about your home and heating needs. We'll recommend the right Rinnai boiler and provide a clear, no-obligation estimate — including system design for your distribution type.