Use of dehumidifier

[AnLock]

Hi
I live in a 500 year old cottage - no foundations - brick flooring on clay .
Recently started using a dehumidifier - property is humid but no “damp”.
I now wonder if this is acceptable as I read recently that it is not a good idea to dry out the clay ?
Also I have a small weed growing through the pointing !
Thanks for your advice ! I’m new on this site so you will see a lot more of me .

 

[aockenden]

Hmmm, not a good idea to dry out the clay eh? That’s a new one. What reason was given for that? Who’d you hear it from?

 

[a twig]

Not such a silly suggestion with no foundations, a neighbour in Somerset was built on clay with no foundations and used to have to water his house over hot periods in summer to minimise what would otherwise have been pretty significant movement (cracks you could see daylight through used to appear in stone walls etc)

What are you using the dehumidifier for if you don’t have damp?

 

[AnLock]

That is interesting . I can’t find the original source where I read that this could be negative for the clay soil which could lead to walls moving .
I don’t have mould and although there is some signs of the paint flaking from walls, I started using the dehumidifier to dry out the air last winter . It’s an old cottage . This made the cottage noticeably warmer .
I’ve continued to use the dehumidifier over the summer and it just feels dryer .
Upstairs I have a Drimaster-Eco Positive Input Ventilation System. This is amazing !