Help !! When do you replace the thermostat on gas water heater ?
when it goes bad.

when it goes bad.
Changing the gas valve on a hot water heater requires safety and care, such as turning off the gas at the gas valve. Learn about using wrenches ...
Before changing the temperature on an electric hot water heater, it's important to turn the power off prior to removing one of the panels ...
1. Set your water heater to 120 degree Fahrenheit
2. Insulate your water heater with an insulation blanket
3. Purchase a water-saving shower head
4. Fix leaky faucets, which can waste gallons of water over time
5. Consider updating your toilet with a water conserving model
6. Wash clothing with warm or cold, not hot, water
7. Make sure you're washing a full load of clothes
8. Hang clothes outside when it is sunny and warm
9. If your dryer has an automatic setting, use it instead of timed drying
10, Make sure to run full loads in the dishwasher
11. If you don't have a dishwasher, don't do dishes with the water running
12. Set the refrigerator for 38 to 40 degrees Fahrenheit
13. When loading groceries into the refrigerator, open the door and load everything at once
14. To test how airtight your refrigerator is, close a dollar bill in the door
15. Turn off lights when you leave a room
16. Install lower-wattage bulbs in overhead fixtures, use task lighting for projects
17. Trade your standard candescent bulbs for compact fluorescent bulbs
18. Consider a natural gas stove
19. Make sure to turn off the TV when you are not watching or listening
20. Turn off the computer when it isn't in use
21. Programmable thermostats can help cut costs
22. Set your thermostat to 78 in the summer and 69 in the winter
23. Replace the filters in your heating and air conditioning units once a month
24. If you have rooms in your home that rarely get used, either close the vents or purchase vent covers
25. Use silicone caulk to plug areas around windows and doors
26. When shopping for any large home appliance, make sure to choose one with an Energy Star label
27. Most utility companies will send an energy expert to your home to do an analysis
28. Comparison-shop for lower auto and homeowner's insurance rates
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