Quote Originally Posted by TekWarren
Not to be negative or put spyder products down...as I use them myself and love it (original herpstat). But something to consider (coming from my technical background) is the possibility of a single point of failure. Controlling 4 zones would be awesome but to me would be a little scary if those 4 zones were 4 full racks of animals. I have no doubt the products are all of great quality but it never hurts to plan for the worst case scenarios.
I am with you Tek. If your one thermostat goes out then you could have more than one rack out of heat. Herpstat are great products. I use the helix DBS 1000 its got one button and three plugs real Micky Mouse to run.