the hot water temperature will not reduce due to atmosphere temperature.
To keep the heat in and make the heater more efficient. Idiot.
If you are talking water heater, they are made of steel. If talking storage tanks, copper lasts much longer than steel. Will not rust.
No, they are rigid.
Which water tank, well water, cold storage or hot water heater tank.
Yes, there is a website that lists used hot water tanks. You can get a list of them at www.energystar.gov/index.cfm?c=tax_credits.tx_index
They don't "prevent" anything. They provide hot water , usually as needed.
So the steam can rise from the boiler to the hot water tank storage
To prevent the heat dissipating.
Shiny surfaces on hot water tanks and pipes do reflect solar radiation, which can help in retaining heat. However, the primary reason hot water tanks maintain warmth is due to insulation that minimizes heat loss. While reflective surfaces can contribute to heat retention, the main factor is the tank's design and insulation properties. Overall, a combination of materials and design helps keep the water hot for extended periods.
You are describing a solar hot water system, which consists of solar collectors that heat water, storage tanks to hold the hot water, and pumps to circulate the water to where it's needed, such as faucets or radiant heating systems. These systems can be a cost-effective and eco-friendly way to provide hot water for residential or commercial use.
An instant hot water tankless system heats water as it flows through the unit, eliminating the need for a storage tank. When hot water is needed, the system quickly heats the water on demand, providing a continuous supply of hot water without the limitations of a storage tank.
There is no way short of cutting it off. Hot water tanks are not made to be opened.