I know this is a weird question, but where better to ask a question such as this than here? I want to purchase one of those hybrid hot water tanks. What kind of "heat Pump" is mounted on that sucker? Is it junk, noisy, etc. I'm looking at a GE 50 gal or Whirlpool 60 gal. The whirlpool is several hundred bucks more. Does the Whirlpool have a "better" heat pump than the GE. ie: Copeland vs recip, quieter, etc? It weighs in at about 150 lbs more than the GE. The Big Box salesmen do not know crap about these heaters. One stated it "must" be located in the garage due to the "Massive" air and temperature requirements.