Tip & How-To about Bosch Water Heaters

Maintaining your tankless water heater

Have both your water heater and water softener serviced every year. If you do not have a water softener please use Aqua Pures AP 430 SS and replace the cartridge at least every 6 months.

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bosch 125fx heater barely heats water


1) Recommend replacing tankless with ordinary tank-type gas water heater.
http://waterheatertimer.org/How-to-install-gas-water-heater.html
http://hometips.me/Mar/Which-is-best-gas-water-heater.pdf

2) Tankless cannot be exposed to more than 11 grains hardness in water or unit will fail within 2-5 years. Water softener is required.
http://hometips.me/Tls/Battelle_Water-softening-research.pdf

3) Descaling tankless water heater each year will not restore functionality, or restore efficiency of tankless, nor restore full efficiency to tank-type gas water heater.

4) Bradford White side-by-side testing research comparing their tankless with their tank-type shows that tankless will save $1-8 per month on energy bill vrs ordianry tank-type ....but conclude that tankless 'fall far short of payback' due to maintenance, repair, installation and replacement costs.
Study compared full cost, and not just monthly energy bill, since All costs are energy.

Feb 16, 2013 | Water Heaters

1 Answer

My water heater is leaking and only 4 years old. Will the use of a water softener void the warranty?


The warranty should not be void by using water softener, BUT read product manual.
http://waterheatertimer.org/Water-heater-manufacturers.html

1) First thing: Why is water heater leaking? Where is the leak?
http://waterheatertimer.org/Leaking-water-heater.html
For example, if you have electric water heater leaking from element, then replace element.
Replace leaking TP valve.
If water is leaking down vent pipe, and combustion chamber rusted out, then vent problem must be corrected.
These are not covered by warranty.
If tank is rusted out, then read below.

2) If water heater is rusted out after 4 years, you might have stray current corrosion.
This happens when hot and cold pipes are not connected together with a ground wire, and/or if cold water pipe is not grounded to earth.
This might not be covered by warranty.

3) Read water heater instruction manual for advisories.
Tanks rust out when anode rod is depleted. Softened water depletes anode rod faster.
Instruction manual says to check anode rod each year.
Checking anode rod is like checking oil on an engine. If oil was never checked and engine burned up, the manufacturer will not honor the warranty.
If anode rod is depleted, and tank is rusted out, the warranty might not cover the rusted tank since owner was supposed to check for anode depletion.

4) Anode rods can also be covered with calcium deposits and stop working.
This night not have anything to do with water softener, but anode stops working and tanks rusts out.
In any case the owner's manual probably says to check anode rod to prevent leaking from rusted tank
http://waterheatertimer.org/Replace-anode-rod.html

Sep 07, 2011 | Water Heaters

1 Answer

I have a hot water heater model # EES 52917. It is 8 years old. The tank has rusted around the top heating element. Why has this happened and what can be done about this issue. From what I understand A.O. Smith is supposed to be a top brand and it's supposed to last longer than this.


AO Smith is biggest manufacturer and ships about 140,000 units per month sold under different brands. Look at rating on tank. Is it a 9 year tank? Or 6 year? Or lifetime?
http://waterheatertimer.org/Water-heater-manufacturers.html

Number of factors can cause rust around element:

1) Element is seeping moisture: check and replace element.
Elements can start leaking any time
http://waterheatertimer.org/Water-heater-is-leaking.html

2) Anode rod can be depleted from variety of factors including water softener or calcification over anode so it will not work: Check and replace anode rod every 1-2 years with water softener, every 3-5 without water softener. New anode rod will STOP the rust, but will not repair tank that is rusted.
Tanks with longer warranties have 2 anode rods, one on hot water nipple, the other on top of tank.
http://waterheatertimer.org/Replace-anode-rod.html

3) Stray current corrosion: add a jumper wire between hot and cold pipes, and make sure tank is grounded. If there is stray current, it will deplete steel in tank if tank is not grounded.
For example one fellow had a tank that rusted out every few years until he discovered his big radio antenna was grounded back to hot water pipe and the tank was not grounded, so the interference depleted his tank.
http://waterheatertimer.org/9-ways-to-save-with-water-heater.html#Ground-tank

Add a comment for more free help.
Also take advantage of fixya expert assistance live.
For a price, expert works with you via e-mail or phone while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.

Feb 23, 2011 | Water Heaters

1 Answer

it si 7 years old an leaking inside the unit on top of the burners


Tank is rusted out, and requires replacement.

I) To protect yourself from ruptured tank, you should turn it off and use it only when hot water is needed.
http://waterheatertimer.org/Emergency-steps-for-leaking-water-heater.html

II) How to install ordinary tank-type water heater yourself:
http://waterheatertimer.org/How-to-install-gas-water-heater.html

III) There are 5 preventable things that kill a water heater and cause it to rust away.

1) Anode rod depletion.
Loosen anode rod before installing water heater.
http://waterheatertimer.org/Replace-anode-rod.html

2) Stray current corrosion
http://waterheatertimer.org/9-ways to save-with-water-heater.html#Ground-tank

3) Sediment build up because no water softener
http://waterheatertimer.org/Clean-sediment-out-of-water-heater.html

4) Corrosive effects of water softener, and anode rod not inspected (see #1 above)

5) Chemicals stored in same room as gas appliance.
Read page 2 of manual below
http://waterheatertimer.org/pdf/Service-manual-for-ignition-resistant.pdf

Add a comment for more free help.
Also take advantage of fixya expert assistance live.
For a price, expert works with you via e-mail while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.

Feb 21, 2011 | Rheem Tank Water Heater G100-200, 100...

1 Answer

I have a Servi-star 40 Gal. electric SN# SS 0496B15258, How old is this unit? Thanks, Jim


http://www.buyerschoiceinspections.com/water-heater-ages
There seem to be 2 possible answers: Servi-star vs Servistar

Answer #1: Servi-star by American
1st 2 digits are year, 2nd 2 digits are week

This means water heater was made year 2004, 96th week ....it seems wrong.

Answer #2: Servistar by Craftmaster
1st 2 digits are month, 2nd 2 digits are year

This would mean your water heater was made 4th month of 1996

Which answer is true? 6 years old or 14 years old
If tank had 12 year warranty and came with 2 anode rods, and you have good water, and no stray current on pipes, then tank can last 14 years.
If tank had 6 year warranty and came with one anode rod, and you have hard water and a water softener, and you never changed anode rod or drained tank, then 6 years is a long life for the tank.

Oct 07, 2010 | Rheem Water Heaters

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