Thanks Trumpy,
As noted in my query, I mentioned that I will be mounting the controller on an extension wiremold box, figuring that would get rid of any possible heat problem.
As far as the possibility of a contactor installed downstream...I think I'm gonna figgaaboutit! It would be a trip into the attic in summer again plus some $$. I think the whole house surge arrestor will take care of any voltage spikes (hope so). Out here in Colorado the utilities like to roll off power periodically. I'm hoping that my installation will protect any sensitive electronics from fryin'. And oh yes, this is a digital controller.
Thanks for the input!
