I have used two of them in upstate NY. The first was a 24" HotShot that worked very well since the heater was sandwiched between two dishes. The only problem is that if you tighten the dish-to-mast bolts too tight the heater may short out...otherwise it is perfect. I dismissed it to the basement due to technology changes.
The second one was a stick-on on a Dish500. That works OK; a bit slower since it covers only the lower 1/2 of the dish. It is still in service.
The only time the heated dish is really important is when you get freezing rain and it builds up on the dish. Some snow does not make a lot of difference since it contains very little water (the stuff that absorbs the signal).
I am now in a quandary since I will soon need to upgrade to the SuperDish. No heater yet exists, at least in my searching, that will fit it. Let me know if you find one!
If I cannot find one I will probably use one of those coiled water hoses to spray hot tapwater on the dish from the bedroom window...a last resort.
