ᐅ Fewer operable windows with mechanical ventilation with heat recovery

lastdrop schrieb:

I have one single window fixed glazed (for safety reasons). I wouldn’t want it like that anymore; something that can be opened is easier to handle.

We also have one single fixed glazed window. Never again.

We have installed a lot of fixed glazing, mainly due to the size. But on the ground floor, not the upper floor, for easier cleaning. Emergency escape routes are also a consideration. We have blinds with adjustable slats everywhere, so cleaning the coverings is less of an issue (and if needed, it’s on the ground floor anyway).

The additional costs between turn-only and tilt-and-turn windows are marginal. You won’t save anything there.

Bookstar schrieb:

A mechanical ventilation system with heat recovery does not replace airing out,

I don’t agree.

Bookstar schrieb:

A mechanical ventilation system does not replace the need for airing, especially not during the first year after moving in. I would always design all windows to be operable.

You don’t need all windows for ventilation. We have three fixed glazing areas: one in the gallery and two horizontal windows in the kitchen and living room — both unnecessary for airing and easy to clean from the outside. Therefore: where you need windows for ventilation, don’t use fixed glazing. Where you want windows to be openable for cleaning, don’t use fixed glazing.

Otherwise, you can consider that. But the thought process: “I have a mechanical ventilation system, so I don’t need windows that open” is simply wrong.

Even as a strong advocate of mechanical ventilation with heat recovery, I would always plan for as many windows as possible. For me, windows and mechanical ventilation are not necessarily directly related.

However, under normal circumstances, mechanical ventilation completely replaces the need for window ventilation; otherwise, it would be pretty pointless. As long as you don’t fully ventilate by opening windows more than 10 times a day, the volume of air exchanged by mechanical ventilation is significantly higher than what you could achieve manually, resulting in better indoor air quality.

Mycraft schrieb:

You can remove the roller shutter slats from the top of the box and clean them. Just a tip.

Our boxes can be opened from the inside. The plasterers applied very thick plaster to the reveal. We already had to open one box and now have plaster flakes there... :-( And I’m sure we would have the same issue there.

Golfi90 schrieb:

There are tools with magnets that allow you to clean the roller shutters simultaneously from inside and outside.

That sounds good. I’ll look into that. Thanks.