Well it’s definately the end of the summer. Mid September and you can smell the aroma of fires at night time as it gets cooler.
No need for a fire to be lit here as yet but the end of the summer raises the issue of overheating again. This year there was very little overheating, due partly to a poor summer and partly due to setting the heat recovery system to run a bit differently. We found a setting for the summer bypass in the setup menu which prevents the bypass opening below a certain temperature. This was set to 18 deg C, which did restrict the times the bypass opened. By adjusting this down to its minimum of 13 deg c during the summer meant that the house could cool itself a bit more.
We are still a bit undecided whether to put in a brise soleil over the windows on the south side to give shading in the summer. We might be glad of it if we have a hot summer.
Advanced notice to everyone. NZEB open days / international Passive House day 13-15th November