Say goodbye to gas bills: the ultimate guide to replacing your natural gas water heater

Replacing a natural gas water heater can seem like a daunting task, but with the right tools and a step-by-step guide, you can tackle this project on your own. This comprehensive guide will walk you through the entire process, from safety precautions to testing your new water heater.

Gather Your Tools and Materials

Before you begin, ensure you have all the necessary tools and materials:

• New natural gas water heater
• Adjustable wrench
• Pipe wrench
• Gas shutoff valve
• Flexible gas supply line
• Teflon tape
• Pipe dope
• Level
• Safety glasses

Safety First

Working with gas can be hazardous, so it’s crucial to prioritize safety:

• Turn off the gas supply to the water heater using the gas shutoff valve.
• Open a nearby window or door to ventilate the area.
• Wear safety glasses to protect your eyes from debris.

Step-by-Step Replacement Guide

1. Disconnect the Water Lines:

• Turn off the water supply to the water heater.
• Attach a garden hose to the drain valve at the bottom of the water heater and drain the tank.
• Disconnect the cold water inlet and hot water outlet pipes from the water heater.

2. Remove the Old Water Heater:

• Disconnect the gas supply line from the water heater.
• Carefully lift the old water heater off its stand and remove it from the area.

3. Install the New Water Heater:

• Place the new water heater on the stand.
• Level the water heater using a level.
• Connect the cold water inlet and hot water outlet pipes to the water heater.

4. Connect the Gas Supply Line:

• Apply pipe dope to the threads of the gas supply line.
• Wrap Teflon tape around the threads of the gas shutoff valve and the water heater’s gas inlet.
• Connect the gas supply line to the water heater and tighten it securely using an adjustable wrench.

5. Test for Gas Leaks:

• Turn on the gas supply at the shutoff valve.
• Apply soapy water to all gas connections and check for bubbles. If you see bubbles, there is a gas leak. Tighten the connections further or call a licensed plumber.

6. Fill the Tank and Check for Leaks:

• Turn on the water supply to the water heater.
• Allow the tank to fill completely.
• Check for leaks around the water connections and the drain valve.

7. Light the Pilot Light:

• Locate the pilot light assembly and remove the cover.
• Use a long-neck lighter or match to ignite the pilot light.
• Hold the flame for about 30 seconds until the pilot light stays lit on its own.

Troubleshooting and Tips

• Pilot Light Won’t Stay Lit: Check if the thermocouple is properly positioned and replace it if necessary.
• Water Not Hot Enough: Adjust the thermostat setting on the water heater.
• Leaking Tank: Tighten the drain valve or call a plumber for further inspection.
• Noisy Water Heater: Check for loose connections or sediment buildup in the tank.
• Use a gas detector: Install a gas detector in the area where the water heater is located for added safety.

Wrapping Up: A Job Well Done

Congratulations! You’ve successfully replaced your natural gas water heater. Remember to check the water heater regularly for any issues and call a licensed plumber if you encounter any problems.

Common Questions and Answers

Q: How often should I replace my natural gas water heater?
A: Every 8-12 years.

Q: Can I install a larger water heater than my previous one?
A: Yes, but you may need to upgrade the gas supply line and plumbing to accommodate it.

Q: What are the signs that my water heater needs replacing?
A: Leaking, rusty tank, insufficient hot water, or loud noises.