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?
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?
I can't speak to NZ, but even a normal tank dehumidifier should have the option for a drain line. It'll usually be a hose fitting hidden above/behind where the tank sits, so you can run a line to whatever household drain is nearby. And if it doesn't already have a fitting, it's usually pretty simple to add one.
It can make placement a hassle since you need to be near a drain, but you'll barely need to touch it beyond setup. It's a huge upgrade from dumping the tank constantly.