wrote:
This is not a homeonwer help forum. Post in alt.home.repair.

Thanks for the advice. Followup set.

wrote:
The drum model allowed greater contact surfaces for the moving air to mix with
the water. To increase efficiency of the flow thru models, switch your makeup
water supply to the hot water side.

Already did. Didn't help.

Best of all, install a steam humidifier.

I didn't know that there were whole house steam humidifiers.
I'll try to find some info about them.

Thank you very much for your help.