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Model TC-21 Thermo Cube® T-Stat

Thermo Cube , TC-21
QC Supply Part #: 10892
Shipping: Standard
Availability: In stock

This thermostatically controlled outlet saves energy by running equipment only when necessary.


Maximum Rating: 1800 Watts, 15 Amps, 120 VAC. Exceeding this rating could cause the product to fail.

The Thermo Cube® T-Stat is a unique and patented electrical device plugs into a standard 15-amp outlet which turns the power on automatically according to the outside air temperature.


  • 15 AMP unit plugs into any grounded 120V outlet and has two 120V receptacles for heaters or fans
  • No installation required — saves money by only operating when temperatures require
  • Maximum Rating: 1800 Watts, 15 Amps, 120 VAC
  • Dimensions: 3-3/16" W x 1-5/16" H x 1" D

Model TC-21

  • Turns on at 78° F or higher and shuts off at 70° F
  • Ideal for all types of home and farm fans

Also Available — Model TC-3 (#10890)

  • Ideal for cold climates
  • Turns on at 35° F or lower and shuts off at 45° F
  • Perfect for stock tank and pond de-icers, unheated rooms, pump houses, greenhouses, boats and RVs
Brand Thermo Cube
Manufacturer Part Number TC-21

Manuals & Resources


Customer Reviews

  • 5 Stars

    Works Excellently

    Review by on May 17, 2013

    Great product.

  • 5 Stars

    tc-3 thermo cube

    Review by on Jul 25, 2012

    i got my 1st one last year and put it in my pump house for freezeing safty, worked awsomely,got the others for my travel trailer, then my wash room, dont have to go out and turn on and off lights to keep from frozen pipes, ive got them pluged into clip on light, and ive found them in other stores but no-one compared on ur price thanks

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