Latient heat
Most washing machines use electricity as the primary source of energy for operation. Some newer models may also incorporate energy-saving features or options for using hot water from a water heater.
Water heater fan? I have never seen a "water heater" with a fan. Possible a boiler, hot water heating system. Assuming you are talking about a "water heater" in a house. Please give a little more information on where it is and what it is intended to do.
Yes if u want to save for energy and money the best deal is the solar water heater it will not cost on your bill and also very safe. Most people used this kind of product so they can save for money.
Hydraulic energy.
it is a nuclear kind of energy
Electrical energy is required to electrolyse water.
heat energy
Do you mean a pool that has a salt water generator? If so, any pool heater could be used.
Potential.
If the pump pumps water, then it will increase the water's gravitational potential energy.
Physical Energy
American Water Heaters manufactures a variety of water heater models for personal and business use. You can find a full list of their products as well as how to purchase them at the official American Water Heater website.