Rinnai

Gas instantaneous water heaters - Rinnai HD 50i, HDC, Infinity 16i

Rinnai is a Japanese manufacturer of gas appliances. It is also the world leader in modulating instantaneous hot water heaters. Constant pressure on development and manufacturing has led to the design of what is, to date, the most advanced device for hot water heating - the modulating instantaneous water heater.

When most people think about ensuring a hot water supply, the first thing that comes to mind is usually a boiler or a combi boiler. That's due to the long tradition of these methods of heating water, which are time-tested and reasonably reliable 

In the 1970s, when combi boilers were just getting started, the most sought-after boiler output was 20 to 30 kW. The technical design of combi boilers was adapted to this output too, built with a single burner and heat exchanger that also heated the hot water.

Frequently Asked Questions

• Are Rinnai heaters suitable for several outlets at once? Yes, thanks to modulating flow control Rinnai models can supply hot water to several outlets simultaneously, and the more powerful HD and HDC ranges are also suitable for demanding use.
• What fuel do Rinnai heaters use? These are gas appliances that run on natural gas.
• What's the advantage of modulating instantaneous heating? The heater maintains a constant water temperature regardless of fluctuations in flow, so there's no need to reheat or mix the water manually.