Ventilatorderster

In http://jansenendewaal.blogspot.com/2018/09/ventilatorderst.html I wrote:

"Eat that, humidity!"

Well yes. And it works. Only, this ventilator is so strong that you cannot close the cellar door any more. It has two 10x10cm ventilation grilles, but that is not enough. So, the door needed to be slightly ajar, with a rubber bandage to keep it as closed as possible. But, never actually closed.

Worse is that the cellar takes its air from the kitchen, so in the evenings, when the heating is on, a lot of warmth was sucked into the cellar. You could see the curtain flap. Added a timer to switch off the ventilator in the evening and at night. At night too, as you could hear the ventilator drone in the distance, as the cellar door was slightly ajar. But, then, in the morning, you could once again smell the cellar slightly, in the kitchen.

Grmbl.

Decided on a new plan. Now the lowest mill cellar is naturally ventilated again by the grille next to the house and the window in the back of the garage there no longer is an absolute need to force the air from our cellar through there. Closed off the hatch to the lowest mill cellar by putting the hatch with the big ventilator in a plastic bin bag. And, re-installed the 15 Watt 230V ventilator on the pipe that goes outside at the top and back of the cellar.

Now the ventilation opening in the door are big enough, so the door can be properly closed. Attached a plastic bag to each of the ventilation openings, so air can only go into the cellar, and not out.

Slightly more humid (5%) than the kitchen, and the outside air.

Yes, freezer bag and gaffa tape.

Ventilatorderst

The cellar remains humid, despite efforts to ventilate it better, as described in Ventilatorder:

That is a nice Panasonic 14W ventilator, and built to last. But, not enough.

Bought a bigger one, 46W this time, bigger in size, too, so it runs at a lower RPM, and is not very noisy.

Eat that, humidity!

Ventiladorder

In the past, air passed through the lower watermill cellar through the black grille next to the house, and the "door". When the watermill was stopped and the mill reservoir was broken the wind passed through the cellar by the black grill and the water tunnel.

When the workshop was built the back wall closed off that venting, and all humidity ended up in the garage. Apparently no one before realised that the black grill is a ventilation opening.

We tried to mend the humidity situation before, see solar ventilator. That did work well, especially for the atmosphere in the kitchen. However, ventilador 2 in the garage did not work at all. The humidity and volume of air are too great.

We asked Emilio (the builder) to make a nice big hole, where immediately very humid air started to pass, in large volumes.

The solar ventilator passes 60 m3 per hour to the outside, but only when the sun shines. In the evening and in the morning you could smell the cellar a bit, as the ventilation is then halted. We will switch to the grid.

This 230V ventilator has a capacity of 180 m3 per hour, day and night. It moves the air from the first cellar under the kitchen to the watermill cellar, and from there to the new opening in the back of the garage and to the black grille next to the house.

Intention is that no more air flows from cellar to the kitchen, and to dry out the watermill cellar, so the garage stays dry. There is a sheet of plastic between the back of the garage and the garage, so the humid air is forced out through the new window.

It could be the solar ventilator in cellar 1 is no longer necessary, or even that the pipe up and out to the back of the house is better closed off. We'll see (smell).