Hot Shot Vitrigraph Glass Kiln HS-7GV
Save $671.00
Original Price
$2,378.00
Current Price
$1,707.00
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In Stock: In stock and ready to ship. Most orders are delivered within 5–7 business days.
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Hot Shot Ovens & Kilns · Glass Kiln · Vitrigraph
Hot Shot Vitrigraph Glass Kiln HS-7GV
The HS-7GV is a specialized vitrigraph kiln designed for glass artists working with molten glass drawing techniques. This compact front-loading kiln features a 1.625-inch drop-hole in the floor for creating controlled glass streams, with a 1850°F maximum temperature optimized for vitrigraph work. Operates on standard 120V household power, making it accessible for home studios without requiring dedicated electrical service.
Max Temperature1850°F
Interior Dimensions7″ × 7″ × 7″
Power Supply120V household
Drop-Hole DiameterØ1.625″
What’s included
Solid State Relay Control
Hot Shot standard SSR control system for precise temperature management and infinite switch reliability
Front-Loading Clamshell Design
Easy-access hinged door for loading glass and monitoring vitrigraph process
1.625″ Drop-Hole
Precision-sized floor opening for controlled glass drawing and vitrigraph techniques
Standard 120V Plug
Plugs into standard household outlet—no electrician required for installation
Technical specifications
ModelHS-7GV
Interior dimensions7″ W × 7″ D × 7″ H
Drop-hole diameterØ1.625″
Maximum temperature1850°F
Voltage120V
Loading styleFront-loading clamshell
Control systemSolid state relay (SSR)
ApplicationVitrigraph glass drawing
Optional accessories
Digital Temperature Controller
Programmable controller upgrade for precise firing schedules and temperature ramp control
Glass Shelf Kit
Fiber shelves and posts sized for vitrigraph work and glass preparation
Additional Drop-Hole Plugs
Replacement ceramic plugs for sealing drop-hole when using kiln for other glass applications
Kiln Vent System
Dedicated venting for fume extraction during glass melting and drawing processes
Fiber Paper Pack
High-temperature fiber paper for kiln wash and glass release applications
Type K Thermocouple Replacement
Spare thermocouple for temperature monitoring system
Common questions
What is vitrigraph, and what can I create with this kiln?
Vitrigraph is a technique where glass is heated until molten, then pulled through a hole to create flowing streams, rods, or ribbons. The HS-7GV's 1.625-inch drop-hole allows you to load glass pieces in the chamber, heat them to melting point (typically 1500–1700°F depending on glass type), and draw controlled strings of molten glass from the bottom opening. Artists use vitrigraph glass for jewelry components, decorative stringers, sculptural elements, and mixed media work.
Can I use this kiln for fusing or slumping when I'm not doing vitrigraph work?
Yes, when the drop-hole is plugged with a ceramic fiber plug (recommended optional accessory), the HS-7GV functions as a small fusing or annealing kiln. The 7″ × 7″ × 7″ chamber is suitable for small test tiles, jewelry-scale fusing, or pendant work. The 1850°F maximum temperature is adequate for most fusing schedules with COE 90 and COE 96 glass, though the chamber size limits project scale.
Do I need an electrician to install this kiln?
No. The HS-7GV operates on standard 120V household power and plugs directly into a standard wall outlet. Confirm your outlet is on a dedicated 15- or 20-amp circuit for safe operation, but no hardwiring or electrical service upgrade is required. This makes it ideal for home studios, classrooms, or spaces without 240V access.
What types of glass work best for vitrigraph in this kiln?
Compatible glass includes COE 96 (Bullseye, Spectrum), COE 90 (Oceanside, Wissmach), and soft borosilicate varieties. Hard borosilicate requires higher temperatures than the HS-7GV's 1850°F maximum and is not recommended. Stack compatible glass colors in the chamber to create multi-colored pulls, or use single colors for uniform stringers. Glass viscosity at temperature will affect pull speed and strand diameter.
Is my warranty valid if I buy from Peach State Pottery?
Yes. Peach State Pottery is an authorized Hot Shot dealer, which means your one-year manufacturer warranty is fully valid. Kilns purchased through unauthorized resellers, auction sites, or third-party marketplaces are not covered under Hot Shot's warranty policy. Register your kiln within 30 days of delivery to activate coverage.
Not sure if the HS-7GV is the right kiln for your glass studio?
Our team can help you compare vitrigraph kilns, discuss power requirements, and recommend the best setup for your artistic practice.
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