The real decision is whether you feel the additional expense, normally around 8-10% of the build cost, is worth it to have the most comfortable house you’ll ever own that requires virtually no heating.
In the UK the average 85m2 home spends almost £600 a year on heating and around £1350 on energy as a whole. It may seem incredible but reducing your heating bill to the cost of a cup of tea per day is entirely possible, saving many hundreds, even thousands of pounds per year for many.
The decision to build a sustainable home is a big one. Once made, it’s essential to consider the impact of this decision as early as possible during your projects’ planning phase.
Having spent 14 years running Back To Earth, an eco building company, Chris Brookman knows a thing or two about sustainable building.
There is a perception that Passivhaus buildings use hardly any energy because of all of the insulation they contain. Whilst this construction standard provides unrivalled comfort and massively reduces the heat load required it does not necessarily mean the house uses much less energy for anything else.
As an addendum to my last post I wanted to add a few things. The first being that the whilst the Silverton Passivhaus is an exceptionally well performing building the occupants are still consuming fairly large quantities of energy.