I just posted about this on the quail forum. I used to have a foam Hovabator and it was a piece of junk IMO -- radical temperature and humidity shifts at the slightest change in ambient atmospheric conditions. I know a lot of people have good results with them, and I actually did too but only through constant supervision and adjustment. I think the psychological torment alone that this unit inflicted upon me was the best reason for ditching it.
I bought a
Brinsea Octagon 20 Advanced with the humidity pump unit this spring and it's a night and day difference. The unit has an onboard microchip I believe and is all digital. It truly is a "set it and forget it" unit other than candling and checking for bad eggs. The only complaint I have about it is the
Brinsea engingeers should redesign the tubing system that the pump uses to send water into the unit's evaporator because it tends to get caught up and tangled in the autoturner base. But that is a minor complaint, and the silicon tubing has enough elasticity that it doesn't cut off the water supply to the evaporator even when this does happen. Mine has consistently held temperature and desired humidity level despite wide variations in ambient room conditions, which is the 180 degree opposite of the old Hovabator. Finally, the
Brinsea is made of rigid plastic and, while I'm sure it too could be broken, it's a lot less fragile feeling than the foam of the Hovabator, which I always feared I was going to break while accessing, moving, or cleaning the unit.
At $450 with shipping, it wasn't exactly cheap but it sure is nice.