Changing a gas water heater to an electric one involves replacing the unit, ensuring proper electrical connections, and complying with local codes, making it moderately complex.
Switching from a gas to electric water heater is a common home upgrade. While the process is straightforward for professionals, homeowners should understand the key requirements before starting this project.
Can You Convert a Gas Water Heater to Electric?
Yes, you can replace a gas water heater with an electric model. The conversion requires:
- Proper electrical wiring (10 gauge minimum)
- A dedicated 30-amp double circuit breaker
- Gas line disconnection and capping
- Possible venting modifications
For complex electrical work, consider hiring a licensed electrician. They can ensure your panel can handle the new load safely.
Step-by-Step Conversion Process
1. Electrical System Assessment
Check your breaker panel for available capacity. Electric water heaters typically need:
| Requirement | Specification |
|---|---|
| Wire gauge | 10 AWG or larger |
| Circuit breaker | Double 30-amp |
| Voltage | 240V |
2. Gas Line Disconnection
Safety first! Follow these steps:
- Turn off gas supply at the main valve
- Disconnect the flex line from the water heater
- Cap the gas line properly
- Consider removing unused gas lines completely
3. Water System Preparation
Drain the old unit completely before removal:
- Shut off cold water supply
- Connect a garden hose to drain valve
- Open pressure relief valve to speed draining
- Disconnect all water lines
4. New Unit Installation
When installing the electric water heater:
- Position near existing water lines
- Connect water lines with proper fittings
- Fill tank completely before turning on power
- Secure all electrical connections
Key Considerations Before Switching
Electrical Requirements
Older homes may need panel upgrades. According to Navien’s technical specifications, electric models often demand more power than gas units.
Venting Changes
Electric models don’t need venting like gas heaters. You’ll need to:
- Remove old vent pipes
- Seal roof/wall penetrations
- Patch any remaining holes
Permit Requirements
Most areas require permits for:
- Electrical work
- Gas line modifications
- Water heater replacements
Pros and Cons of Electric Water Heaters
Advantages
- No combustion gases or venting needed
- Often more energy efficient
- Lower installation costs (no gas lines)
- Safer operation (no gas leaks)
Disadvantages
- Higher operating costs in some areas
- Slower recovery time
- Vulnerable to power outages
Professional vs DIY Installation
While some homeowners attempt this conversion themselves, professionals offer:
- Proper gas line handling
- Correct electrical connections
- Code-compliant installation
- Warranty protection
For related HVAC projects, see our guide on best HVAC systems for open floor plans.
Cost Factors
Conversion costs vary based on:
| Factor | Cost Range |
|---|---|
| Electric water heater | $300-$1,500 |
| Electrical upgrades | $200-$1,000 |
| Professional installation | $500-$1,500 |
| Permits | $50-$300 |
According to AAA Heating and Cooling, proper installation is crucial for safety and performance.
Maintenance Differences
Electric water heaters require different care than gas models:
- Annual element inspection
- Regular anode rod checks
- No vent cleaning needed
- Sediment flushing remains important
For other home temperature solutions, check out our home temperature regulation devices guide.
