Here's how to disassemble a banister and balusters for refinishing. Using a block, gently separate the banister and newel post just enough to insert the blade of a reciprocating saw. Cut through the bolts and nails to detach the banister. Repeat this process on the opposite end. Then, carefully separate the pieces using the block. Be sure to number each piece for re-assembly later.
Look for the EnergyGuide label that tells how much energy the water heater uses in one year. Also, look for the FHR (First Hour Rating) of the water heater, which measures the maximum hot water the heater will deliver in the first hour of use. If you typically need a lot of hot water at once, the FHR will be important to you.