Residential Sizing Guide

If you are running out of hot water, it could be due to an oversized or jetted tub, teenagers, or an added bathroom. Consider a larger water heater.
If you are planning to stay in your home, consider models made with a longer warranty, it’s less expensive when installation and maintainance expenses are considered.
If you have hard water that leaves deposits on fixtures and requires frequent replacement of heating elements, consider a self-cleaning model
For Gas models, check to make sure exhaust vent will handle a larger water heater with more BTU input.