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Commercial Hot Water Solutions for Any size of Business

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Tankless Water Heater

Complete Commercial Solutions for your business

More Canadian businesses depend on Rinnai for hot water than any other manufacturer. The reasons are clear: Rinnai provides pre-built and tested systems that save money for operations of any size, hassle-free ownership, and industry-leading services that are available 24/7/365 to repair or replace your existing equipment.

Find out how you can save energy, maximize space, and reduce costs by choosing Rinnai: North America's best-selling commercial water heaters, designed to offer efficient and compact hot water solutions for your home.
Choose your product:

Tankless Water Heater

Rinnai CX
CX Models

Engineered for the most demanding commercial applications with temperature output up to 185°F (non-pump models) and integrated logic that links up to 24 tankless units. The CX Series is perfect for restaurants, hotels, multi-family residences, schools and anywhere hot water is essential running a business.

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Tankless Rack System

TRS

Harness all the benefits of tankless technology with preassembled freestanding racks that produce enough hot water to service any size application and still fit through a standard 32" doorway. This system is great for hospitality, multifamily, industrial, schools, dorms, and food processing.

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Demand Duo®

Demand Duo H-Series

When maximum performance and high efficiency are critical, the Rinnai Demand Duo H-Series condensing commercial hybrid water heating system delivers. Customers never miss a beat with hot water, whether it’s brief, high-spike draws or continuous, heavy use.

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Rinnai Tankless Water Heater

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System Sizing Accuracy 100% Guaranteed

Our Application Engineering Center of Excellence will give you a system sizing and a pricing quote quickly — within 48 hours of request. The engineering team will also provide designs and system drawings for your specific project to ensure a smooth installation and coordination with other trades. Get a custom solution and a professional installation for your business from our Rinnai experts all backed by our 100% sizing guarantee.

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5-Star Google Reviews

Our customers' satisfaction speaks volumes. See why HVAC Ontario is trusted by homeowners everywhere.

After a frustrating 5 days with Enercare and no hot water, HVAC Ontario came to the rescue. They answered my questions with clarity, provided excellent service, and installed a new tankless water heater within 24 hours.

C

Claudia Morrison

HVAC Ontario offered a competitive quote and great service. The technician was punctual and professional, and the installation was completed quickly and cleanly. Highly recommend their team!

A

Ainee Chung

The team at HVAC Ontario is fantastic. They truly care about customer comfort, offer competitive pricing, and provide high-quality equipment and service. I couldn't be more pleased.

S

Shamez Kassam

Abdul and his team were fantastic and professional. I got quotes for a tankless heater from a few places but Abdul's was not only the best, he was the most knowledgeable in the product.

D

Derrick Ho

An amazing level of customer service before, during, and after the install. Highly recommend to anyone considering such work to be done in their home.

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Denis Dalton