How do I install a whole house humidifier on an all-in-one heat pump in an area where we have freezing temperatures during the time of year when you'd want to use a whole house humidifier.
An HVAC contractor pretty much told us it can't be done but it's hard for me to believe this problem is unique and unsolvable. I'd prefer not using some portable unit that sprays water mist into the air from a water reservoir that needs to be filled throughout the day.