We are planning a new building and are with the floor plan, building application, etc. completely through and could start directly, if not an expensive showstopper by the energy consultant would have arisen.
Due to the offset in the terrain, our living / dining room and adjoining semi-open kitchen is lower. Ceiling height is about 3.8m. Windows to the garden two 3x3m west, and another large corner window in the east. Now it said that we need exterior jalousies on all windows of the critical space. Increasing the Ug/Uw class of the windows would not change this. Window/room ratio about 40%.
Fact: this is not possible in terms of cost.
Current proposal: no windows, just a glass door with a skylight. Ergo: we can no longer look into our garden and that is absolutely not an option for us.
If it is only about this critical space. What else can be done?
1) Ventilation system is in, increased night ventilation is considered. Unclear if with heat recovery.
2) District heating or air-to-water heat pump.
Are there models that could integrate low cost air conditioning for only 2 rooms? Then I would have an option for 15/20 days a year. Does anyone have any idea how this would compare in cost to 6 exterior shutters?
We keep hearing only shutters or "no" windows/glass doors in. And feel massively backed into a corner.
We would be so grateful if we could get an idea here.