Gas Water Heater Maintenance and Review
We've previously discussed maintaining your electric powered water heater. Now, let's look at the natural gas or propane heater. They're also easy to maintain and should be looked at twice a year. This checklist is similar to the electric version with the exception of viewing the venting at the top and the burner plate area at the bottom interior of the tank. You will want to print out the electric checklist prior to starting your gas maintenance inspection. For gas heaters, before you begin any maintenance, ensure you do NOT smell unburned natural gas. If so, cease immediately what you are doing and call your utility company.
Here are the additional steps when dealing with gas water heaters:
To check exhaust venting at the top of the heater, carefully light a match and slowly position the flame next to the draft hood. Observe the flame to see if it is being drawn into the vent. If not, or if being pushed away, this is a sign of down drafting and service needs to be called.- Next, note temperature control setting and adjust control to it's lowest level turning off the water heating operation. Remove the lower access panel exterior cover. You may also need to remove an interior cover, sometimes covered with insulation. Use a pair of pliers as these covers are hot. Do not put any part of your hand inside the unit.
- View the inside of the bottom of the appliance looking for rust, corrosion buildup, or leaking. If buildup is found, you most likely have an aging tank and need to consider budgeting for replacement. If leaking, tank will need service and probably replacement as well.
- Return covers to their original positions and return temperature control to original setting.
You're done! Again, before you begin, become familiar with this basic diagram of your gas water heater. I've created a link. Just click here.

Comments
Tankless or Traditional Water Heater
Depends. Tankless or Demand heaters will have a longer expected useful life. They are also more energy efficient as they only need energy when the demand for water is immediate. Usually a good choice if the family is small and the demand is not great and frequent. They are more costly initially, but will save you money over the life of the appliance due to lower energy consumption and longer anticipated life.
If you have a large family, take lots of showers, have laundry being washed frequently, and dishwasher running, I'd probably go with the traditional gas fired water heater.
Consumer Reports.org and EnergySavers.gov have some good info.
Hope this helps.
Water Heater
What’s most efficient? A gas water heater or tankless water heater. Iwould really appreciate your suggestions.