Hi, I saw that you have a copy of the manual for a Humidaire Model 21 that your willing to pass out. I recently acquired a Model 21 Zytron and was hoping you would be willing to share so so could get the temps set correctly. Thanks for the assistance!!
Hey GAQuail,
I'm Tom from Wash state and I was given a Marsh Roll-X. I'm trying to find as much info as possible. I think it is one of the first models made. Should I replace the potentiometer with a digital Thermometer? e-mail chickenwhisperer@gmail .com