Hello we’re Rinnai New Zealand – the proud pioneers behind many of the heating solutions Kiwi and Australian families enjoy.


This year we’re 40; as a subsidiary of Rinnai Corporation (the world’s most innovative heating appliance manufacturer) we have constant access to the latest developments and technology – we may be in our 40s, but we’re as tech-savvy as a teenager!


And we’re proud of our Kiwi heritage; designing and manufacturing all our gas fires right here at home, with our gas hot water solutions designed in Japan – we believe our local commitment adds a touch of magic to the way we deliver our solutions.  Our low pressure copper hot water cylinders and Rinnai Boil & Brew™ automatic boiling water units are fully manufactured right here at home in NZ. We also put a  lot of research and development into designing and sourcing the highest quality components from Europe for our enamel and stainless steel cylinders which are assembled here in our Auckland manufacturing plant. 


We don’t mean to brag, but we are history makers – being the first company to introduce continuous flow gas hot water to Kiwis.


Our Rinnai INFINITY ® gas hot water range still leads the market today, with the highest star ratings in the non-condensing category. Providing a saving of up to 66% in water heating each month, this is one of our best creations yet.


After our first water innovations, we got cracking on warming homes by introducing the first Rinnai gas heaters and manufacturing gas fires soon after.


What next? Stay tuned...


The Rinnai Timeline




HJ Cooper by Rinnai

By now you know a bit about us – at Rinnai, we are go-getters, who are always striving to increase our offering to deliver a better service.


That’s why we decided to bring electric hot water cylinders into the Rinnai fold, acquiring HJ Cooper in 2012, and re-branding it HJ Cooper by Rinnai.


With more than a century of experience under its belt, we knew attaining HJ Cooper was a coup!


And industry professionals and consumers know this too, as they enjoy an unrivalled range of products through a new and improved HJ Cooper by Rinnai.


But you know us; we’re an over-achieving lot – all about adding a little touch of Rinnai magic!


So we don’t just hand over our products; we spend time chatting with our customers to suss out how we can exceed their expectations for their homes.


We’re always out to do things better and faster, offering valuable appliances that last for longer.