According to Chinese traditional Fengshui theories, the eating hall should not be directly visible from the front door of the house/apartment.
Some architects like to put the eating hall rihgt behind the front door or the entrance hall/corridor. From Fengshui aspect, this kind of designs hurts both the money luck and health luck of the household. Man needs a comfortable environment when man eats. When the front door is open, the negative Qi outside of the house/apartment flows in and disturbs the mentality of the people in the eating hall. Additionally, the air currency produced by the door is not good for digestive system. It is easy for the children in the household to get eating problems.
The methods to improve:
1. Put a hinder between the front door and the eating hall
The principle is that the eating hall must not be visible directly from the main door when it is open. You can put a cabinet, curtain, a thin wood wall, etc. A hinder behind the front door not only blocks negative Qi, but also store positive Qi.
2. Increase the distance between the front door and the eating table
There is no certain standard for the distance between the front door and the eating table. The principle is that the distance is big enough so that no one beside the eating table feels uncomfortable when the front door opens. However, if the distance is only several steps' long, it is too short anyway.
3. Put in "Seven stars Tai Chi"
If it is not easy to put in a hinder and change the distance between the front door and the eating table, you can hire a professional Fengshui-man to set "Seven stars Tai Chi" in your home.
Professional Fengshui-man usually pays much attention on the location and outlooking of the eating hall, because eating hall is tightly related to the money luck. From the aspect of "Five characters", eating hall is fire, so eating hall should look warm, gentle and harmonic. In addition, money luck should be hidden well. The better it is hidden, the longer it is kept. This is another reason for that eating hall should not be exposed when the front door opens.