Keep an eye on your glass firing without having to peek through an open lid. Order your next Evenheat Glass kiln with our 2"x4" viewing window. They're amazing and they work great. Available only as a factory installed option on "Glass Firing" kilns.

The viewing window is currently available, by request, on models:
Hot Box, Hot Shot (except 230V model), GT 14-6, GTS 18-9, GTS 18-13, GTS 23-9, GTS 23-13, GTS 2541-9, GTS 2541-11 and GTS 2541-13.

The viewing window does replace the peephole on the GT and GTS models.

Our viewing window is designed for applications up to 1800°F (982°C) non-continuous. That means all glass firing up to this temperature is absolutely acceptable. The viewing window is not designed for higher temperatures into the ceramic/porcelain/glass crucible range. The viewing window is available only on glass firing kilns.

Hot Box Lid with Viewing Window