Installing a water heater DIY

Do’s and Dont’s of installing a water heater


  1. Do consult with multiple plumbing companies for pricing of an exact or better replacement before attempting it yourself.
  2. Do compare your price quotes from other companies, comparing not only their prices but whether it is easier to have them do it instead of yourself.
  3. Do make sure that if you have a plumbing company install your water heater they and their installers are licensed and insured in the state and locality you reside in.
  4. Do consult your local plumbing code official about updates that may be necessary in order to comply with current plumbing codes.
  5. Do turn the cold water off to the selected water heater.
  6. Do be prepared to be without water for at least an hour or more to the entire house.
  7. Do turn off all gas and/ or electric to the water heater.
  8. Do have your new water heater already purchased and ready to install including all water, gas or electric fittings that you may need.
  9. Do follow all installation instructions provided by the manufacturer.
  10. Do drain your existing water heater of all water that is left in the tank after turning off the water supply. 
  11. Do make sure all water, gas and electric connections are leak tested and properly joined for your safety.
  12. Do have a helper on hand for assistance when needed.
  13. Do install the water heater according to all local codes and call for an inspection after it is installed correctly.
  14. Do discard of the old water heater in a manner appropriate to your local trash pick up service.
  15. Congratulations you have installed a new water heater.


  1. Don’t  try to perform this work without the correct plumbing tools and fittings necessary.
  2. Don’t try and move heavy objects such as water heaters by yourself.
  3. Don’t ignite a gas water heater or turn on the electric to an electric water heater before it is filled with water and you have leak tested the gas and water piping.
  4. Don’t forget to call the plumbing inspector in your locality for an inspection to ensure that the water heater has been installed according to current plumbing code.
  5. Don’t discard of your old water heater inappropriately!
  6. Don’t dislike a plumber because he or she charges a fair rate to perform a service such as installing a water heater. Plumbers are professionals by trade and get paid fairly to perform this service.

As always…  Why be Wrong ?…..When you can Flow-Rite !

Call a licensed Cincinnati Plumber Today at (513) 383-4242