this post was submitted on 21 Jun 2023
25 points (100.0% liked)

Aotearoa / New Zealand

1656 readers
31 users here now

Kia ora and welcome to !newzealand, a place to share and discuss anything about Aotearoa in general

Rules:

FAQ ~ NZ Community List ~ Join Matrix chatroom

 

Banner image by Bernard Spragg

Got an idea for next month's banner?

founded 1 year ago
MODERATORS
Dave
RaoulDuke
25
We've got an insulated house, heat it properly, ventilate it, but still see humidity levels of 70%+ in bed rooms. How to fix that? (self.newzealand)
submitted 1 year ago by sylverstream to c/newzealand
95 comments fedilink hide all child comments
 

We built a house 7 years ago and it's insulated and has double glazing. I've installed Home Assistant with temp sensors in the bed rooms and seeing 70%+ humidity levels. Temperature is always above 16c

We ventilate it, but still it's 70% in the bedrooms. WHO recommends 40-60%, so we're a bit worried.

Living room is around 55% during the day when we have the heat pump set at 21c.

As it's pretty humid outside I think it's almost impossible to get it lower, but are there any other tips? I don't want to run dehumidifiers. Would an HRV like system help?

you are viewing a single comment's thread
view the rest of the comments
[–] innercitadel 2 points 1 year ago

I installed ducted air con and instead of having a separate system for ventilation, for cost effectiveness I routed it from the outside through the air con system. So the aircon pulled the air from both the return vent in the house (90%) and from the outside (10%). You only need a small amount of mechanical airflow from the outside to reduce moisture levels. And had another vent hole with cover on the soffit for future but not ducted into the air con.