O.E.M. Heaters will be closed on Friday, June 28th for inventory. We will also be closed on Thursday, July 4th and Friday, July 5th for the holiday.
Industrial electric heat supply made fast, simple, and accurate

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Upper Hemispherical


  • Ideal for preventing vapor condensation in the top half of the flask.
  • Excellent alternative to other heating methods like a Bunsen burner.
  • Opening holds flasks with up to 3 necks on ring stand.


  • Fiberglass cloth outer shell.
  • Uniform, low-watt-density, knitted-and-braided heating element.
  • Heating temperatures up to 842°F (450°C).
  • Multi-stranded resistance wire for increased flexibility and durability.
  • Plug and play: plugs into any standard outlet.
  • Temperature controller required.

If you have any questions regarding laboratory mantle heaters, please call us at 866-685-4443, e-mail us, or send us a contact form.