I was hired to install a new water heater in a customer's home. The customer had already purchased the water heater and provided me with the necessary information to complete the installation. I arrived at the customer's home and began the installation process. I connected the water heater to the gas line and the electrical supply and then installed the water heater in the designated location. I tested the water heater to ensure it was working properly and then cleaned up the work area. The customer was very pleased with the work and paid me in full with a credit card.