KNOWLEDGEBASE

KNOWLEDGEBASE

How much weight can go in a kiln?

To Calculate Maximum Load Weight

  1. Calculate the area of your hearth plate. Example: In an e28T-3 there are two 25.5" diameter half hearth plates. The total area is Pie*Radius Squared. The radius is 25.5/2 = 12.75". 12.75 X 12.75 = 162.56. Multiply by 3.14. 162.56 X 3.14 = 510 square inches. Divide by 144 to get square feet. 510 / 144 = 3.54 square feet.
  2. For Easy-Fire, Jupiter, eQuad-Pro, JH Series, eFL Series, School-Master, Doll KIlns: Figure 100 pounds per square foot. In the example above then the maximum weight that can be put on the hearth (assuming even loading) is 100 X 3.54 = 354 pounds.
  3. For DaVinci Kilns: Figure 150 pounds per square foot.
  4. For Easy-Load Kilns: Figure 200 pounds per square foot.
  5. If you need the weight in KG multiply the number of pounds times 0.453592

Even Loading

The other factor is that the brick is mostly non-compressible as long as the load is spread out evenly. For heavy loads we recommend putting a hearth plate right on the bottom of the kiln on top of the firebrick to spread out any weight. If you put all of a very heavy load on a few kiln posts then you could compress the brick and damage the bottom.