At 4Most Energy, we proudly serve homeowners across the GTA and surrounding areas, delivering reliable heating solutions that combine efficiency, performance, and professional installation. The Rinnai IP120SN Heat-Only Boiler is designed for homeowners who want dependable warmth while keeping energy costs under control.
With a heating capacity of 120,000 BTU, this unit is a powerful choice for homes with greater heating demands. Powered by natural gas and equipped with advanced condensing technology, it captures more heat from every unit of fuel. A modulating burner automatically adjusts output, ensuring consistent comfort while minimizing wasted energy.
 
Key Benefits of the Rinnai IP120S
Heat-Only Design – Dedicated to central heating; pair with an indirect water heater for domestic hot water.
High Efficiency – Up to 95% AFUE, lowering fuel costs and emissions.
Smart Comfort – Modulating burner adapts to your home’s real-time heating needs.
Durability – Lifespan of 15–20 years with proper maintenance and professional installation.
Warranty Coverage – 12-year heat exchanger warranty, 5-year parts warranty, plus 1-year labour warranty from 4Most Energy.
 
Applications in Ontario Homes
Homes 2,500–3,500+ sq. ft. – Reliable performance for larger homes with higher heating needs.
Families with 4–5 bathrooms or higher hot water demand when paired with an indirect water heater.
Versatile heating compatibility – Supports radiant in-floor heating, panel radiators, baseboard systems, or hydronic air handlers.
Ideal for suburban GTA properties that require both comfort and capacity.
 
Why Choose 4Most Energy in the GTA
When you trust 4Most Energy, you’re getting more than just a boiler, you’re investing in peace of mind:
1-year labour warranty included with every installation
Flexible financing options from 1 to 20 years
Expert installation by licensed professionals—done right the first time
Local service and support across Toronto and the surrounding areas