 But the big deal is energy efficiency. I bought it 18 months ago. I was on Alabama Power & Light's budget billing system at a cost of $395 a month. This month, I'm paying $190. To me, that's just an incredible improvement. It's paying for itself. Plus, it was installed and serviced by Clark's. Not to mention their plumbers are talented and can virtually solve any problem between the Buffalo valve and the backyard fence.