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Commercial Hot Water

Rinnai is a trusted leader in commercial hot water technology, delivering innovative solutions that combine performance, efficiency and reliability. Designed to meet the demands of diverse commercial environments, Rinnai's range of hot water systems provides businesses with dependable access to hot water while helping to optimise energy use and reduce running costs. With flexible system configurations and expert support, Rinnai helps organisations create smarter, more sustainable hot water solutions.

Explore Commercial solutions
Rinnai installs heavy due hot water system at Treasury estates winery
Rinnai Demand Duo DD HD200E (right)

Explore our range

Rinnai commercial hot water systems options include multiple continuous flow systems, gas or electric hot water storage tanks, warm water valves and heat exchange tanks. In conjunction with a wide range of accessories such as solar pre-heating, common flue, circulating pump sets and controllers. A centralised solution is available for almost any application.
The Rinnai Heavy Duty (HD) series is a heavy duty commercial grade continuous flow water heater built to last. A high efficiency unit that can be used on its own for low hot water demands, or coupled together to suit almost any commercial application.
Rinnai Heavy Duty Gas Continuous Flow Hot Water
View range

Commercial Hot Water Systems

Rinnai commercial hot water systems options include multiple continuous flow systems, gas or electric hot water storage tanks, warm water valves and heat exchange tanks. In conjunction with a wide range of accessories such as solar pre-heating, common flue, circulating pump sets and controllers. A centralised solution is available for almost any application.
View range

Heavy Duty Continuous Flow

The Rinnai Heavy Duty (HD) series is a heavy duty commercial grade continuous flow water heater built to last. A high efficiency unit that can be used on its own for low hot water demands, or coupled together to suit almost any commercial application.
Rinnai Heavy Duty Gas Continuous Flow Hot WaterView range

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Access key Rinnai commercial support pathways for parts, quotes and direct assistance.

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Rinnai home heating fireplace in a modern living space.
Rinnai Enviroflo hot water system installed at home.
Rinnai gas continuous flow hot water unit in black.
Rinnai gas continuous flow hot water unit in black on a wall.
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