Jen-Ken AF3P Bonnie Glo Glass Kiln

The Jen-Ken AF3P Bonnie Glo is a lightweight, all-fiber kiln designed for artists who fire frequently and need rapid heat-up and cool-down cycles. Weighing only 25 pounds, it’s incredibly portable—perfect for teachers, traveling artists, and anyone who wants to complete multiple firings in a single day. Unlike brick kilns, fiber construction absorbs almost no heat, so the glass heats faster and cools quicker, enabling 2–3 firings per day.

Fire pendants in under an hour, run evening firings after work, or take it on-site to classes and studios. Fuse directly on the kiln floor using kiln wash and fiber paper, or add an optional fiber shelf for workspace flexibility. The reliable Orton AF3P 3-button controller provides simple digital control with preset firing programs and editable custom schedules. Optional solid-state relays (SSRs) offer smoother power cycling and quieter operation for precise results.

Light, fast, and efficient, the Bonnie Glo is a tribute to Bonnie Glotfelty and her legacy in the fired-arts world—built for makers who create often and on the go.

Controller

• Orton AF3P 3-Button Controller (standard & only option)

Optional Upgrades

• Solid-state relays (SSRs) – quieter, smoother temperature control & longer relay life
• Fiber shelf – prep projects outside the kiln and protect kiln floor

Key Features

• Designed for multiple firings per day
• All-fiber construction heats glass—not brick
• ~25 lb portable design with carry handles
• Fuse directly on kiln floor (no shelf required)
• Ideal for pendants, jewelry, small fusing projects
• Fast heat-up & rapid cool-down cycles
• Runs on standard household power
• Includes manual & warranties

Includes

• AF3P digital controller
• Instruction manual
• 1-year kiln warranty / 2-year controller warranty

A fast-cycle, travel-friendly glass kiln built for creativity that never sits still.

• Model: AF3P Bonnie Glo
  
• Inside Chamber Dimensions: 15" W x 6" H
• Cubic Feet: 0.66
• Overall Dimensions (Footprint & Height): 19" W x 10" H
• Maximum Temperature: 1700°F
• Elements: side firing
• Kiln weight: 25 pounds
  
• Volts: 120
• Amperage: 13A
  
• Watts: 1,560
  
• Plug configuration: NEMA 5-15
• Breaker: 20A recommended (if 15A is an absolute necessity, call us)
• Circuit wire gauge: 14

This kiln takes approximately 2 to 3 weeks to produce.

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Higher voltage means lower amperage draw and greater efficiency, which can save money long term. 240V and 208V cost the same—most home studios use 240V, while 208V is common in schools or large facilities. Amperage refers to the amount of electrical current a kiln draws—higher amps require heavier wiring and breakers.

Single-phase is what almost all homes have. If your facility has three-phase, you can choose either—but three-phase is typically the better long-term option due to smoother power and improved efficiency.

Mechanical relays are standard and reliable. Solid-state relays (SSR) offer silent operation, faster cycling, greater precision, and longer lifespan—ideal for frequent or high-accuracy firings.

The following controllers are used across kilns sold by Pottery Pulse. Not all models offer every option—available controllers are listed on each product page. Some kilns include only the standard controller, while most allow upgrades for added precision and convenience.

Olympic Kilns

• Infinite Switch – Manual dial control for simple heat adjustments.
• KilnStar – Digital controller with preset and user-defined programs.
• Genesis – Advanced touchscreen interface with Wi-Fi and data logging.

Evenheat Kilns

• Icon – Digital 3-button controller for straightforward firing.
• RampMaster II – Manual digital controller for ceramic kilns; flexible ramp/hold programming.
• RampMaster 3 – Updated version for glass kilns with refined interface.
• Icon+ – Enhanced digital control with expanded profiles and precision.
• TAP II – Smart touchscreen controller with Wi-Fi, data tracking, and remote access.

Hot Shot Kilns

• Novus – “Set & Go” controller: set a target temperature and it does the rest (no segments).
• Spark – Entry-level touchscreen controller with intuitive operation and limited program control.
• TAP II – Smart touchscreen controller with Wi-Fi and real-time monitoring.

Jen-Ken Kilns

• Orton AF3P 3-Button – Reliable and straightforward for basic firing.
• Orton AutoFire 4000 12-Key – Expanded program capacity and fine control.
• Orton AutoFire Slide Touchscreen – Modern, responsive touchscreen interface.
• TAP II Touchscreen Smart Controller – Wi-Fi connectivity and real-time data tracking.

Not all kilns can use a collar, but Olympic’s Hot Box kilns can be ordered with a collar to expand versatility. A blank collar simply adds height to the firing chamber, while a bead collar adds the same height and includes a built-in bead or annealing door for quick-access lampwork projects.

This safety feature automatically cuts power to the heating elements whenever the kiln lid or door is opened. It prevents accidental burns, protects elements, and resumes power only when safely closed. (Also called an automatic lid shutoff on Olympic kilns.)