Front-load vs. Top-load Kiln: Which type suits your firing needs?
Because there's more than one type of kiln, how do you choose the one that's most effective and worthwhile? Let's look at the pros and cons of top-loading and front-loading kilns before you decide to buy.
Similarities with Differences
Both types of kilns share the same shelving system, stacking from bottom to top, but the style of arranging pieces differs significantly.
Front-loading kilns make it much easier to estimate the height of pieces in relation to the shelf distance. However, when arranging pieces on the same shelf, some skill might be needed to gauge the spacing, as you can't see from above.
Top-loading kilns are easier to arrange and provide a clearer overall view because opening the lid from the top allows you to immediately see every piece arranged on the shelves from an overhead perspective.
Health is also important. From a user health perspective, a front-loading kiln is better for your back as you don't have to constantly bend over or reach down to lift heavy pieces into the kiln, unlike with a top-loading kiln.
Disadvantages and Things to Know Before Buying
Lid and brick debris (Top-loading kiln) A point of concern with top-loading kilns is that the door and lid can wear down over time due to gravity and the weight of the lid. This increases the chance of brick debris falling onto the uppermost pieces and damaging them. (A simple preventive measure is to place a refractory plate on the top shelf as a protective barrier.)
Price and weight (Front-loading kiln) If comparing budgets, front-loading kilns are considerably more expensive because they require more robust materials for their construction, and the kiln itself will also be heavier than a top-loading kiln.
Now that you know the different pros and cons of both types of kilns, it's up to your preference, the nature of your work, and your budget to decide which type will best meet your long-term needs.