Hot Shot Oven & Kiln HS-7GV Vitrigraph Glass Kiln

Create stunning custom cane and stringers with the artistry of a vitrigraph kiln. By heating glass to a molten state and drawing it through the drop-hole, you can form long, thin rods that add unique detail to mosaics, fused glass, and complex decorative designs. This process opens up new creative possibilities for both hobbyists and professional glass artists.

Purpose-Built for Precision and Creativity

With a 1.625-inch drop-hole and a 7" x 7" x 7" interior chamber, this kiln is designed for small-batch creativity without sacrificing results. The cool-to-touch exterior keeps your workspace safe and comfortable, even during extended sessions. Every detail of the design supports precision while encouraging artistic exploration.

Controller Options for Every Artist

TAP&Go Controller – The 7GV comes standard with this simplified single-setpoint controller designed for heat treating, metal clay, and knife-making. Just enter your desired temperature and the kiln automatically heats to that setpoint—no complex programming required.

SPARK Controller – Upgrade to an intuitive full touchscreen interface.

TAP II Controller – Upgrade to a larger display with advanced scheduling and enhanced usability. 

Mounting System Options

The 7GV must be elevated for vitrigraph work to provide space beneath the drop-hole for pulling molten glass. Choose the standard Wall Mount Bracket or one of three motorized VitriLift systems—Bench Mount, Wall Mount, or freestanding Floor Lift. Feel free to download the manual for the motorized freestanding floor lift to learn more.

Select No Mounting System if you already have a suitable setup for supporting the kiln.

Why Artists Choose a Vitrigraph Kiln

Whether you’re making intricate mosaics, adding decorative stringers to fused pieces, or experimenting with cane pulling techniques, a vitrigraph kiln provides unmatched flexibility. Safe, compact, and easy to use, it’s the perfect addition to any glass studio.

Comes with a 3-year warranty.

This kiln comes standard with the TAP&GO Controller.

The Genesis Spark controller and SDS TAP II Controller are upgrade options.

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Choose the voltage that matches the electrical service where the kiln will be installed. Some kilns are available in only one voltage, while others can be ordered in multiple voltages. If both 120V and 240V are available, 240V is generally the preferred choice because it places less demand on your electrical system, while 120V offers the convenience of operating on a dedicated standard household circuit. If both 208V and 240V are available, select the voltage that matches your building's electrical service—240V is most common in homes, while 208V is common in many commercial, educational, and institutional buildings. If you're unsure which voltage you have, confirm it with your electrician before ordering.

Your kiln must be built to match the electrical service where it will be installed. Choose single-phase if that's what your building has (almost all homes do). Choose three-phase only if your building has three-phase power available. If both are available, three-phase is generally the preferred option. If you're unsure, verify the available electrical service with your electrician before placing your order.

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.)