State Industries Storage and Tankless Gas and Electric Hot Water Heater Website.

A Quick Look At State Storage and Tankless Gas and Electric Water Heaters

OK, that’s it. I’ve looked at the State water heater site, and it is just the same as all the rest. Besides the ones I’ve recently blogged about, I’ve also written articles about Rinnai, Takagi, Noritz, and Bosch tankless water heaters. You can see the articles here: Bosch Noritz Takagi Rinnai

While reading through the manual for one of the tankless water heaters I ran across this tid-bit, and I’ve seen it with other brands of tankless hot water heaters too.

An “LC” or “00” error code indicates the unit is beginning to lime up and must be flushed. Failure to flush the appliance will cause damage to the heat exchanger. Damage caused by lime build-up is not covered by the unit’s warranty. After flushing, reset the LC fault code by turning off the power to the unit and turning the power back on.

Here is what you need and instructions on how to flush the lime out of the tankless water heater…

Circulating Pump
5 gallon pail of virgin, food grade, white vinegar (or virgin, food grade, citric acid).
Cold Water Line
Hot Water Line
In-line Filter

1. Disconnect electrical power to the water heater.
2. Close the shutoff valves on both the hot water and cold water lines (V3 and V4).
3. Connect pump outlet hose (H1) to the cold water line at service valve V2.
4. Connect drain hose (H3) to service valve V1.
5. Pour approximately 4 gallons of virgin, food grade, white vinegar or citric acid into pail.
6. Place the drain hose (H3) and the hose (H2) to the pump inlet into the cleaning solution.
7. Open both service valves (V1 and V2) on the hot water and cold water lines.
8. Operate the pump and allow the cleaning solution to circulate through the water heater for at least 45 minutes.
9. Turn off the pump.
10. Rinse the cleaning solution from the heater as follows:
a. Remove the free end of the drain hose (H3) from the pail.
b. Close service valve, (V2), and open shutoff valve, (V4).
Do not open shutoff valve, (V3).
c. Allow water to flow through the heater for 5 minutes
d. Close service valve, (V1), and open shutoff valve, (V3).
11. Disconnect all hoses.
12. Remove the in-line filter at the cold water inlet and clean out any residue. Place filter back into unit.
13. Restore electrical power to the water heater

Boy doesn’t that sound like fun? Something to consider when you are trying to choose between a storage water heater and a tankless unit.

State water heaters has some electric water heaters that have 3 inch thick insulation and have an energy factor of .94. I think that is the highest I have ever seen for an electric storage type water heater.

Not much else of interest at the State site, so that’s it for now.

I think I will try to find a new topic for my next blog. I am all water heater’d out.

Bill the Hot Water Guy