Where feng shui schools disagree
Published 2026-08-20
If one source calls your far-left corner the wealth area and another calls it one of the weakest sectors in the house, neither is necessarily wrong. They are two different schools. Feng shui is not one system, and the disagreements are old and structural — no amount of reading resolves them.
This site runs two schools and keeps them apart.
The main split: a compass or a front door
Eight Mansions (八宅, Ba Zhai) is a compass method. It needs the direction your building faces, and it produces two separate charts — one from the building’s sitting direction, saying where rooms belong, and one from your birth year, saying which way you should face.
The three-door bagua, taught in the West since the 1980s and often called BTB or Black Sect, ignores the compass. It lays nine squares over the floor plan lined up with the front door, so the corner labels depend on where you walk in and nothing else.
Take a home whose front faces east. Walk in and your left hand points south, so the far-left corner is the southwest corner of the building. A house facing east sits west, which Eight Mansions calls a Dui house. Here is the whole plan read both ways:
| Corner of the building | Three-door area | Eight Mansions, Dui house |
|---|---|---|
| Southwest | Wealth | Tian Yi, favored |
| West | Fame | Fu Wei, favored |
| Northwest | Love | Sheng Chi, favored |
| South | Family | Wu Gui, weak |
| North | Children | Huo Hai, weak |
| Southeast | Knowledge | Liu Sha, weak |
| East | Career | Jue Ming, weak |
| Northeast | Helpful People | Yan Nian, favored |
In this home the two schools happen to agree about the far-left corner: three-door calls it the wealth area, the compass method calls it favored. That agreement is luck, and it does not survive turning the house.
Rotate the same building so its front faces south instead. The three-door grid does not move — the far-left corner as you walk in is still the wealth area — but that corner is now the northwest of the building, and a south-facing house sits north, making it a Kan house, in which the northwest reads as Liu Sha, one of the four weak sectors. Same label from one school, opposite verdict from the other, for the same physical corner. The two things called a bagua map goes through that comparison.
Neither school is being careless. One is anchored to a door, the other to a compass bearing, and those two anchors cannot be reconciled.
Where the annual stars sit
The two schools above both answer the same question: which parts of this home suit this person. The annual stars answer a different one — what to leave alone this year — and they are not a third opinion on the first question. They are a separate layer, and they stack rather than compete: the layout is the frame, the year’s chart is the forecast, and your Kua number is the personal fit. A layout problem is not fixed by a good year, and a good Kua direction does not make it safe to drill into the 5 Yellow.
What genuinely is out of scope here is the natal chart of a building — Xuan Kong proper, with its mountain and water stars, and the San He (三合) and San Yuan (三元) systems. Those need the year the building was completed and its facing on a 24-direction compass, and we ask for neither. The annual chart needs neither: it is the same nine numbers in the same nine sectors for every home in the world for a given year, which is why it can run here and the natal chart cannot.
Knowing which of these a source is using helps you spot one that has changed schools mid-article without saying so.
A quick way to tell what you are reading, by what it asks you for:
| It asks for | School |
|---|---|
| Only a floor plan and which wall the front door is in | Three-door bagua (BTB) |
| A compass bearing for the building | Eight Mansions, and other compass schools |
| Your birth year | The personal half of Eight Mansions |
| Only a year, and nothing about your building | The annual flying star chart |
| The year the building was completed, plus a 24-direction bearing | Xuan Kong natal chart — not computed here |
Three disagreements inside Eight Mansions
Naming the school is not always enough, because the school is not unanimous. On each of these three splits we report both positions rather than pick.
The stove. One line of practice puts the stove in a weak sector deliberately, reasoning that fire burns off what is there. Another treats the kitchen as a room you use every day and wants it in a good sector like any other. Neither is a minority view, and they reach opposite answers about the same kitchen. Both sides agree on a separate point: the stove mouth — the side the ignition or gas inlet faces — should face one of the occupant’s own good directions, which uses your birth chart, not the building’s.
The number with no trigram. The arithmetic that turns a birth year into a number from 1 to 9 can land on 5, which has no trigram and no direction attached. Kua 5 is therefore never a result on its own: standard practice substitutes 2 for men and 8 for women, which is what this site does. Across 1900–2100 the raw arithmetic lands on 5 in 22 years for men and 23 for women, never in the same year for both. The substitution is gentler than it sounds, because both substitutes are West group — the four favored directions come out as the same set, northeast, southwest, west and northwest, and only the star names on them differ. Some teachers handle it differently, and one substituting outside the West group would be handing you a different chart.
The year boundary. The zodiac animal turns at Chinese New Year. The Kua year and the annual positions turn at the start of spring (立春, lichun). Both are right, and they answer different questions, so a source that uses one boundary for everything is wrong about half of what it covers. The gap is not small: in 2026 the start of spring falls on 4 February 2026 while Chinese New Year is not until 17 February 2026. Across 1900–2100 the start of spring comes first in 103 years, Chinese New Year comes first in 92, and they land on the same day in 6. The widest gaps in the range are 16 days, in 1985, and 14 days the other way, in 1966.
Where our own judgement shows up
The ranking is ours, not anybody’s tradition. Eight Mansions says a direction is Sheng Chi or Jue Ming; it attaches no numbers to those, and says nothing about how to weigh a headboard under a window against a head pointing the wrong way. We needed an order to sort placements, so we invented one. That is why the tools show the individual findings instead of a single score — the findings are checkable, the order is opinion. The three-degree threshold on the bearing-edge warning is ours too.
What to do with a contradiction
Do not average two schools. A map splitting the difference between a door-aligned grid and a compass bearing belongs to neither.
The usable move is smaller: work out which school each source belongs to, then decide which one you are following before you move furniture. We are not going to make that choice for you. What we will do is say which school each page is running and what it needs from you, which is what method and assumptions is for.