Your Questions › Category: Questions About Equipment › How Do I Switch from A Gas to Electric Water Heater? 0 Vote Up Vote Down Terry Ross Staff asked 11 months ago Print This PageHow Do I Switch from a Gas to an Electric Water Heater? Question Tags: economy, electric, gas, residential plumbing, water heater1 Answers 0 Vote Up Vote Down Terry Ross Staff answered 11 months ago Print This PageStart by capping the gas supply. Install your new electric unit in place. Then run an electrical circuit to the breaker panel.