If you are boiling water for tea on the stove top in a saucepan or tea kettle or even if you are using an electric kettle, it can be hard to get the water to the perfect temperature for tea. You would have to watch it constantly to turn off the stove right before it boils. I can recommend a second option.
It might be easier to let the water fully boil and then turn off the stove and let it cool for a few minutes. You can then put in the loose tea or tea bag. The result will be perfect tea.