What does the solar water heater belong to in the five elements? Can it be installed in the direction of Five Ghosts?

The solar water heater is cloudy, that is, water. But with the function of absorbing the essence of heaven and earth, it is best to buy brand products with white as the main color and red as the supporting role, and print words or patterns such as "Fu", "Xi", "Xiangyun" and "Peony Flower" on the water tank of solar water heater. This is exactly the direction of the five ghosts to ward off evil spirits.