Vacuum Chamber
A hot water tank works by storing and heating water inside an insulated tank using electricity or gas. When a hot water tap is turned on, the hot water is released from the tank and replaced by cold water that is then heated up for future use. This cycle continues to provide a steady supply of hot water for household needs.
lower heating element is bad or thermostat is bad
Hot water is typically stored in water heaters, which can be tank-based or tankless systems. Tank water heaters maintain a reservoir of heated water, while tankless models heat water on demand as it flows through the unit. Additionally, hot water can be stored in insulated containers or thermoses for temporary use. In some heating systems, hot water is circulated through pipes to radiators or underfloor heating.
A cold water tank (and pipes) in the loft is insulated to prevent frost damage during winter. The hot water cistern is insulated (lagged) all the time, to reduce heat loss and lessen the time the element is using electricity in heating the water inside.
I do not have a hot water tank, so I have never had a hot water tank flush performed.
The hot water tank might be undersized for your usage.
To prevent the heat dissipating.
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.