BrevilleHotCup Hot Water Dispenser | 2.0L with 3kW Fast Boil & Variable Dispense | Energy-efficient use | Gloss Black [VKJ318]

What is the capacity of this airpot ?

How often do I have to change the water in the container to prevent it from getting stale? Is it suitable for infrequent use (e.g. once a week)?

is it compatible with alexa+smart plug? E.g it makes the water hot when I ask alexa to while being in bed and not touching any buttons of the kettle?

would you be able to fill a teapot with this?