The Rinnai IP150199C is one of the most powerful boilers in the I-Series Plus line, designed for larger Ontario homes with 5–7 occupants and 4–5 bathrooms. Delivering up to 150,000 BTU/h for central heating and 199,000 BTU/h for domestic hot water, it ensures reliable comfort and abundant hot watereven during peak demand.
By combining both space heating and on-demand domestic hot water into one compact, ENERGY STAR® certified unit, the IP150199C saves space, simplifies installation, and lowers energy costs. With advanced modulation and smart controls, it automatically adjusts output based on real-time demand, maximizing both comfort and efficiency.
 
Heating Performance
15,000–150,000 BTU/h central heating range
Ideal for homes 3,500–4,500+ sq. ft.
Perfect for radiant in-floor heating, baseboards, radiators, and hydronic air handlers
Advanced modulation ensures efficient heating in mild and extreme winter conditions
96% AFUE rating = significant energy savings for Ontario homeowners
 
Domestic Hot Water Capacity
199,000 BTU/h DHW input
Delivers up to 9.8 GPM (≈5.1 GPM at 70°F rise)
Easily handles 4–5 bathrooms running simultaneously
Reliable performance for families with high hot water demand (showers, laundry, dishwasher all at once)
Applications in Ontario Homes
Homes 3,500–4,500+ sq. ft.
Families with 5–7 occupants and 4–5 bathrooms
Perfect for high-demand households that need reliable heat and endless hot water
Compatible with radiant floors, panel radiators, baseboards, and hydronic air handlers
 
Smart Technology
Smart Sense™ Adaptive Gas Valve – seamlessly adjusts between natural gas and propane
Smart Connect™ Bluetooth® – quick setup and monitoring with the Rinnai Central™ app
Smart-Circ™ hot water recirculation logic (with pump)
LCD control panel for system diagnostics, setpoints, and error codes
Outdoor reset controls with 7 heating curves for optimal efficiency
Supports up to 4 heating zones for multi-zone Ontario homes