Quote Originally Posted by Jeffski
1) Does size matter? The pool, that is. Considering 18 x 36, however why not go 20 x 40? Is it a lot harder to heat or clean?
I am only in the planning stages as well, so any opinion I express should be taken with a grain of salt.

Having said that, I would abandon the idea of heating your pool. Spa, sure, but I believe that heating a pool is an expensive proposition.