# I seem to have about half the hot water volume I started with.

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You may have one of your heating ellements burned out,with a volt meter check to see if you have 220volts at the ellement than unhook wires and check condinuity of the ellement.Check to see if your fill tube has fallen down inside the tank.The fill tube is located inside the tankat the cold water inlet

Posted on Dec 31, 2010

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Posted on Jan 02, 2017

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## Related Questions:

### How many gallons of water will it take to fill 160' of 2"pipe

look up inside diameter of your 2' pipe
area inside a circle = 3.1415 (pi) x radius squared
for example if inside diameter of pipe is 1.75", then radius is half or .875
radius squared is .7656 x 3.1415 = 2.4 square inches

160 feet pipe = 1920 inches
2.4 square inches x 1920 = 4618 cubic inches

Then convert cubic inches into gallons:
http://www.metric-conversions.org/volume/cubic-inches-to-gallons.htm

If water is hot, then that can affect final calculation

Gene

Aug 26, 2014 | Water Heaters

Hello Mark
First of all turn on a hot water tap and keep it running whilst you check to see if your boiler is firing up, if it is not then try to restart it, you should hear the flame if its running, turn your tap off then just stand by the boiler for a few minutes to see if the pressure gauge starts to rise, if it doesn't rise you will never get any hot water, you will have to add some pressure to about 1 and a half on the dial, to do that is simply turn on the water valve in the bottom of your boiler and watch your pressure gauge rise to about 1 and a half then firmly turn it off again, it looks like a small tap like the one at the back of your washing machine pipe, it's ok you will hear the water rushing in, now with your gauge at about 1 and a half and your boiler running your water will get hot

Oct 23, 2012 | Water Heaters

sounds like you are getting an ignition failure code. Check the inside of the unit for evidence of a leaking HEX.

Jan 31, 2010 | Noritz 6.3 Gallon Residential Tankless...

### Tankless on demand water heater.

Tankless water heaters normally take a little longer than a regular heater to provide hot water because they have to start and get warmed up. I'm guessing the heater uses a pilot light and that the short amount of hot water when you turn on the tap is hot because when the water is sitting still in the heater the heat from the pilot light is enough to get it hot. The tub faucet will get hot a lot faster than the shower because it lets a lot more water through and empties out the pipes faster than the shower. You could probably speed things up by letting the tub faucet run on completely hot for like 10-15 seconds and then turning on the shower.

Oct 24, 2009 | RTO Takagi Jr. TK-JR-N Tankless Water...

### Running out of hot water

Depending on how old the unit is, let me start over a 50 gal water heater after years of service will collect sediment making the area of actual water heated smaller, sometimes as much as half. This might be the reason for running out of hot water.

Sep 14, 2009 | Water Heaters

### Hot water lasts half the time

How old is the heater?

It may be something as simple as just needing to flush the tank to remove any sedemints....and hopefully so because this is the easiest/cheapest thing to do.

If this is not the case go ahead and remove the heating elements and check for wear. Replace them if necessary. I would also replace the thermostats that accompany each of the elements.

Checking and replacing both of this requires you to drain the tank completely and should be close to \$25 total....last time I checked.

Apr 27, 2009 | General Electric Water Heaters

### Tp valve opening and dumping water

Certain water heaters can only handle so much pressure from the main line. There is a pressure controller between your water meter and you house, it's called a pressure regulator. You need to call a plumber to check and see if it needs to be adjusted or even replaced.

Dec 22, 2008 | Bosch & Tankless LP Hot Water Heater

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