This is one way to save a considerable fraction of build costs if it is done at scale. Of course, I’d argue for putting those savings into a better building envelope designed/built to Certified Passive House levels. Content by Prefab NZ.
March 2016 Organic Magazine’s Low Energy Homes
This article features our Director, Jason Quinn, there was a lot to condense into this article. The one additional comment he wishes had made it into the article was that most new homes built in New Zealand to the current building code are unhealthy due to inadequate ventilation resulting high moisture levels and often times mold. Yes, That’s a brand …
20 September 2012 InHouse Magazine: Your Client Wants a Passive House?
We drafted this article for InHouse Magazine back in 2012 on our first Passive House project, Passive House Taupo. Kim Feldborg, who is now a friend of ours, has designed an incredible home up there. Essentially, we did the Math and Physics modelling for the building for him. Great project, beautiful build, and a large home that requires almost no …
21 August 2012 Taupo Times article on Passive House Taupo a “heating bill … less than that old beer fridge”

“Jason Quinn estimates the heating bill for Passive House (Passivhaus) Taupo will be less than running that old beer fridge out in the shed.” In 2018, after 4 winters, we know this is true. This article packs a lot of information into a small space but I’d argue the heating energy reduction in Passive House Taupo is not 80% as …