Vintage Silex Vacuum Pyrex Glass Double Bubble Percolator 8 Cup Coffee Maker is an original electric coffee maker from the 1920-1949 time period. In excellent condition, with filter and filter cover

This clear glass coffee maker features a double bubble design, a metal filter, and is compatible with electric stoves. The PYREX brand is known for its quality and durability, making this collector's item a valuable addition to any kitchen or home decor.

✅ Safe Use on Electric Stoves
Direct use on coil-style electric burners is possible because the Pyrex glass is borosilicate or heat-resistant tempered glass, made to withstand stovetop temperatures.

⚠️ Important Safety Tips:
Use a heat diffuser or wire trivet between the pot and the coil burner. This:
Helps distribute heat evenly
Prevents hot spots that can crack the glass
Start on low to medium heat and increase slowly — sudden heat changes can cause cracking.
Avoid glass-on-glass contact (e.g., setting it on a cold surface immediately after heating).
Flat-top (glass) electric stoves: Still usable, but preheat gently and avoid dragging the pot.