The Furnace: a glassworks

The Furnace: a glassworks offers glass workshops and classes for participants ages 5 to 18. Options include the Experience Glass Workshop, where instructor(s) demonstrate how to make a single solid-sculpted or blown glass piece, and the Glass Sampler Workshop, where each participant makes a few different items of blown or solid-sculpted glass. The program also offers Skills Immersion: Glassblowing Basics, Make Your Own Ornament, Fusing Glass: Assorted Options, and Glass Mosaics: Framed Windows.

Programs

• Experience Glass Workshop — After a brief safety introduction, instructor(s) demonstrate how to make a single solid-sculpted or blown glass piece and guide participants one-on-one. Groups of 1-4; 30 minutes per person.
• Glass Sampler Workshop — A 2, 3, or 3.5 to 4-hour taster workshop for 1 to 6 people where each participant makes a few different items of blown or solid-sculpted glass. Schedule at least 48 hours in advance.
• Skills Immersion: Glassblowing Basics — A skills-focused immersion that introduces the tools, materials, and process of making art using hot glass. Offered periodically with limited seats and a waitlist.
• Make Your Own Ornament — All ages · A holiday workshop offered from the week of Thanksgiving through the end of December each year. The team helps participants make a blown glass ornament.
• Fusing Glass: Assorted Options — All ages · A variety of warm glass classes ranging from short, themed projects suitable for all ages to creative workshops involving more in-depth processes. These are not hot shop-based classes.
• Glass Mosaics: Framed Windows — A two-part workshop creating a decorative glass-on-glass framed mosaic piece over two consecutive days. This is not a hot shop-based class.

At a glance

• Ages: 5–18 years old
• General schedule: Classes are typically offered Saturdays, Sundays, and some Mondays unless otherwise noted in the booking calendar.
• Facility hours: Regular Gallery Hours: Sunday 11:00am - 5:00pm(ish); Monday 11:00am - 5:00pm(ish); Tuesday-Wednesday by chance or appointment; Thursday 11:00am - 5:00pm (ish); Friday 11:00am - 5:00pm(ish) | 7:00pm(ish) on First Fridays; Saturday 11:00am - 5:00pm (ish). Hotshop Hours: most days 10am - 4:00pm.

About the provider

Corey and Leanne Silverman are the owners of The Furnace. Corey Silverman is co-owner and artist, and Leanne Silverman is co-owner, shop buyer, and ideator. The business has co-owned and operated a professional hotshop since 2007 and officially launched The Furnace: a glassworks in 2016. The mission statement is: “A welcoming space for creativity to thrive, with a little fun along the way.” Corey Silverman formally trained as a glass artist at Alfred University in upstate NY. The program invites visitors to see glass being crafted by artisans in Colorado and around the country, watch the glassblowers in action, and explore hands-on glassblowing classes.

Please schedule the Glass Sampler Workshop at least 48 hours in advance. Please book Fusing Glass and Glass Mosaics classes at least one week in advance. Make Your Own Ornament is offered from the week of Thanksgiving through the end of December each year.

What families say

“The Furnace has great supportive owners and staff. An amazing experience. I highly recommend this place!” — Séan Donovan

“We had a great time. A wonderful and fun date. The instructor was great, … patient and knowledgeable and explained the process well. We will definitely return.” — Stacie S.

“An incredible experience for my 8 year old grandson and myself. Loved the hands on approach, with expert assistance from instructor. Highly recommend.” — Debbie Frank

Last updated November 8, 2026.