Rinnai Boiler IP090S Heat Only 90,000 BTU I-Series Plus

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 I90SN Heat-Only Boiler is designed for homeowners who want dependable warmth while keeping energy costs under control.

With a heating capacity of 90,000 BTU, this unit is a smart choice for medium-sized homes with moderate 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 its output, ensuring your home stays comfortable while reducing wasted energy.

Applications in Ontario Homes

• Homes up to 3,000 sq. ft. – Ideal for small to medium-sized homes with moderate heating needs.
• Versatile heating compatibility – Supports radiant in-floor heating, panel radiators, baseboard systems, or hydronic air handlers.
• Best suited for suburban GTA properties requiring efficient, reliable heating without overloading the system.

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

Installation Price Range

Professional installation typically costs $1,900–$3,000, covering all labour and installation materials required for a proper setup. Equipment, pumps, or additional devices are not included. With 4Most Energy, you get peace of mind knowing your system is installed correctly for long-term performance and efficiency.

Installation Procedure

At 4Most Energy, we make boiler installation simple, transparent, and professional—no hidden costs or surprises. To provide an accurate installation cost, we ask you to fill out an installation inquiry form. Our boiler experts review your existing situation, collect all relevant data, and then provide a precise estimate tailored to your home.

Our standard installation includes:

• Plumbing and gas piping
• Ventilation setup
• Drain system connection
• Power hook-up
• Controller setup and calibration
• Full commissioning to manufacturer standards