There are a number of factors that determine where the Plumbing contractor decides to install it.
If it is a gas heater, it needs to be located where it can be vented to the outside.
Typically the heater should be as centrally located as possible to facilitate hot water getting to all of the fixtures it is attached to.
They will attempt to minimize the length of the piping runs. Takes less piping and less work to install.
where is a circular hot water pump located in a home
That's where the burner is located. Also this keeps it from mixing too much with the hot water that rises to the top of the tank.
Yes, an expansion tank can be hooked up to a hot water line. This is commonly done in the case of hot water home heating systems.
Blow torch.
Most home electrical hot water tanks will hold 40 gallons.
Most times the tappings (Hot and Cold outlets located on top of the tank) on the hot water tank are clogged up and they need to be removed and cleaned out or replaced. Other than that, I had a tank just yesterday that the shut off valve on the tank didn't open properly after the home owner had shut it off for some reason.
No, you have to attach a garden hose to the fitting at the bottom of the tank. Often the tank will have sediment built up in it and the water will drain very slowly from this.
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