Assuming you are talking about a home water heater, there is a pressure relief valve above the hot water line - usually on a tee or an ell above where the hot water line comes out of the heater and usually leads to the floor and under the house. The valve is designed to relieve the pressure in the water heater when the water becomes too hot. The valve may have corroded and is stuck in the open position thereby releasing the hot water. You can feel the pipe that connects to the valve = if it is hot, it is leaking water; if it is cold, the problem lies elsewhere - maybe the thermostat could be set too low.
Sometimes natural gas heats your hot water tank.
That depends on how much water is drawn from the tank and how often it is drawn.
Three hours is the average time to run the hot water per day so if you have a 1500 watt tank you will pay about $13.50 a month <<>> A 1500 watt water tank is not going to heat much water. The average home hot water tank operates with 4500 watt elements in it. To get an accurate price use 4500 watts as a starting point.
The sacrificial anode in a Hot Water Tank takes most of the rusting problems away from the tank itself, hence the word "sacrificial!" When the anode has finished its course of use, you will get rusting happening on the walls of your tank which leads to a wrecked and leaking hot water tank. Manufacturers do NOT want home owners to know about these anodes, because if everyone replaced them there would not be any hot water tanks to replace.
The wattage of the water tank is needed to size the breaker and the wire to feed the tank.
The hot water tank might be undersized for your usage.
do they help with hot water tank replacement
how long does it take for hot water after lighting water tank its gas?
No, a hot water tank heats water by itself.
So the steam can rise from the boiler to the hot water tank storage
No, a hot water tank heats water by itself.
You will get warm instead of hot water. There is a tube inside the tank on the cold side that goes to the bottom of the tank and the hot comes directly from the top. Reverse them and you are going to get the cold water that settles to the bottom of the tank. It will not hurt the tank or anything, it just makes for poor hot water.
If the hot water tank is off it is possible. It is also possible for the cold water going to the hot water tank to freeze. Insulate all pipes that are exposed - or let them drip (this is more expensive!)
it is a tank that preheats water and holds until you use it
A boiler functions by boiling water to a steam, which rises upwards. Keeping the hot water tank above the boiler helps keep the hot water hot, as well as allowing the steam to carry itself to the tank, instead of the hot water tank producing steam feeding back into the boiler.
As high as the highest setting available on the tank.
There is no filter in a hot water tank. It is very easy and cheap to fit one either side of it.