useing hot water of the shower

[VinnyVideo]

Basically, what @HylianDev said.

Water heaters can only produce so much hot water at a time. If you take a long shower, especially if you're also using hot water to do dishes or laundry, the shower might begin to feel cooler after a while. However, heating water using a stove or microwave just uses a bit of electricity - it doesn't involve the water heater at all.

Also, it might be wise to spell-check your writing before you post.

Course clear! You got a card.