About us

Established in 1976 by Alastair Young

Spiroloc endures as a family-owned and operated business on its original site in Woolston. From humble beginnings, Spiroloc has grown from one man and a Spiro machine to a tight-knit team across 3 factories with diverse facilities. Supporting local business and maintaining a key role in the Canterbury rebuild and other regional projects are at the heart of what we do.

We have a great team and over 50 years of experience in manufacturing and light engineering both at a commercial level and direct to the public. We pride ourselves on our reputation and workmanship, servicing the wide and environmentally-challenging reaches of New Zealand providing high quality solutions. We are continually developing new products and innovation is part of our everyday operation.

Purchased the full outdoor bath set up , fire, ashtray and drill bit, great product, videos were excellent to help show how to set up even with out them it’s pretty simple to set up. Used on a cast iron bath. After one load of wood and about 40mins the bath was heated and I made the mistake of topping it up which made it too hot. Very impressed so far highly recommend!!

Matthew SeniorWood Fired Water Heaters

Paul and his team are fantastic , understand deadlines and understand thinking outside the square . keep it up team

Jarrod Clarke

Awesome Kiwi family business. These guys have been around for a while and have kept that old-school personal service. Friendly, helpful, professional and they make a huge range of products. Hands-down the most knowledgeable bunch when it comes to flues and wood-fired heating. Very clever, innovative and real.

Al YoungFlues & Fittings

First trial 24kw spirolok water heater. 1700 litres 13 degrees to 40 degrees in 3.5 hours wrapped. This hot tub has no insulation. Paul from Spiroloc knows his stuff and the unit he choose for the project did the job extremely well . Thanks

Stephen BrennanWood Fired Water Heaters

I bought the 6 ltr. thermette today and what an awesome next level take on the original concept. Great guys and absolutely no hesitation in recommending them.

Colin WalshThermettes