[Shaun @ Tru6]

I'm putting a 30 or 40 gallon water heater in at work to help with cleaning screens. the new enviro-friendly citrus-water-based cleaners are OK, but hot water really helps.

Any tips/tricks/must do's for installation?

If not used regularly, will heating the extra 10 gallons of a 40 gal. add a whole lot to my energy bill? Wondering what keeping all that water ready at temp will do to my already big e- bill.

Brands? GE, Sears, Whirlpool. Home Depot has a 40 gallon GE at $250, $50 less than their 30 gallon. A Sears 30 is $280. Whirlpool much higher than both.