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?

  • @sylverstreamOP
    2•1 year ago

    Thanks for the details!

    Smooth air has kits for just ventilation for 1.5k for 2 rooms. Smartvent is more expensive, like 4k, they have some pricing.

    I don’t need a lot of bells and whistles. I can automate it myself. Just an outdoor outlet and an indoor outlet, ventilator and two pipes for just the living room.

    I read your article, they say HRV/DVS is bad for heating, but not if you use it just for ventilation?

    One other easier option is to just have a simple diy DVS by using the air from the attic. I’m going to check the moisture levels there first.