Refrigerators!!

[disneysteve]

Why would the freezer on the bottom be more efficient than on top?

Bottom freezers are drawers, so open on top. Top freezers have doors that open on the side. Cold air is heavy. In a chest freezer or drawer freezer, opening the freezer doesn't let as much cold air escape as when you open a door/upright freezer.

[Hot dog]

I have a bottom freezer and the top opens down the middle like a side by side but is only a fridge. that way you can put vegetable trays and the like in there. Also make sure you ask the sales person if there is any in the back that were returned for any reason they sell them way cheap. That is how I got mine A builder had it put in a house and the buyer did not like it so he returned it but they sold it at a discount plus different sales also applied. I got the top of the line stainless for the price of a normal side by side. I also just got a top of the line dryer because someone bought it and said it is dented I don't see it but I still get the warranty and everything and bought it for half price. I have kenmore and no problems

[disneysteve]

Also make sure you ask the sales person if there is any in the back that were returned for any reason they sell them way cheap.

Also, do you have a Sears Outlet near you? We've bought several appliances there and saved a bundle.

[Daylily]

Bottom freezers are drawers, so open on top. Top freezers have doors that open on the side. Cold air is heavy. In a chest freezer or drawer freezer, opening the freezer doesn't let as much cold air escape as when you open a door/upright freezer.

Not all bottom freezer units have a drawer. Mine is a swing-open door.
I believe the reason that the bottom-freezer models are more efficient than the top-freezer models are more efficient than side-by-sides (all other things being equal) has to do with how hard the condenser has to work to get the colder air all the way up to the top of the unit.