How do you control humidity?

[mark]

Not much of a problem for humidity in the winter even with about 200g but have a switch (may be Code) that turns on the bathroom fan and furnace, which draws in dry outside air via the fresh air intake if wanted. I also have a exhaust fan in the fish room that have planned to put on a humidistat but never bothered. Both obviously not that energy efficient so have considered a HRV (here's a good link, (and at the booklet at the end good as well)) but then again haven't bothered as humidity okay.

For summer find the central AC keeps things in check.

[digital-audiophile]

I wish I had more humidity. Even with the tank, a humidifier on the furnace and two tower humidifiers in the house I struggle to keep it above 35%.