According to Vastu Shastra, placing a Kuber idol in your home can influence wealth and prosperity. The ideal placement for a Kuber idol is in the Northeast corner (Ishan Kone) or the North direction of your house. In the Northeast corner, the idol should face west, allowing you to face east during prayers, while in the north, it should face south, with you facing north during worship. It's essential to ensure the idol is placed respectfully, especially in a pooja room or mandir, to avoid positioning it above other deities, particularly Lord Shiva.