No. Each circuit has to have its own dedicated circuit. The breaker and wire size differ between the two appliances.
You can not answer that question without knowing more about the size of the hot water heater, the size of the stove and oven combo. How often the stove/oven is used, and how much hot water is heated. Water temp. is a factor as well.
It is difficult to come up with an estimate of an electric bill cost for a 2000 square foot home that has gas-fueled heat, hot water, and a stove. The cost of electricity varies depending on where you live. A conservative estimate would be in the $300 range.
Duct tape.
The electric heating elements within the tank must remain immersed in water. If the power is not disconnected before draining the tank, the elements will get too hot and will burn out. if the tank is sitting idle but remains full of water, then they should not burn out.
A water heater that is a tank does not have copper coils. If gas fired, there is a burner at the bottom that heats the water in the tank the same way a tea kettle is heated on the stove. An electric heater has two heating elements in the side, top and bottom that heat the water. A tankless water heater has a coil with a flame in the middle that heats the water. This type heats the water as you use it and for as long as you want. An indirectly heated tank has a heat exchange coiled tube (calorifier) mounted inside the skin of the tank. Hot water or steam travels through the tube and radiates heat into the tank water.
An electric water heater in a hot tank is called an immersion heater and many of those run at 3 kW with a thermostat to control the max temperature. Power showers use a type of water heater that heats the water at the point where it is used, without a tank. They run at 6-8 kW and are also controlled by a thermostat.
The part that generates heat... depending if it is a gas / electric heater
$5,950.97 That is including tax
It may operate, but like a pan left on a hot stove without any water, it will eventually be ruined.
the tank must have a graeter amount of energy because it has to heat up more water there for it requirs more energy to do so
Your question is not quite clear. Are you asking, How do you set it up or how do you stock it? To set it up it all depends on if you have full hookup at the camp site, water, electric, sewer. If none is available then you need to fill your water tank with water, put chemical in you holding tank through the toilet. Set up a generator for power. Take propane for the stove. Then all you need is food, clothing, dishes, toilet paper. flashlight, and bedding.
What do you mean by hot water system? If you mean hot water tank than a three wire hot water tank means that its 220 volt electric. If you have to ask than don't touch it