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Stainless Steel Thermostat with On/Off Position

Johnson Control , T19SC-6C
QC Supply Part #: 20030
Shipping: Standard
Availability: In stock

This Johnson Control Stainless Steel Thermostat is made for agricultural, industrial and commercial heating and/or ventilating applications.


Works Well With the Modine® Hot Dawg® Heaters and all LB White® "-3" Ag Heater Models.

(LB White® #06537) This Johnson Control Stainless Steel Thermostat (T19SC-6C) is made for agricultural, industrial and commercial heating and/or ventilating applications. The Thermostat will control automatic heating or ventilation equipment in livestock barns, poultry houses, milk houses, brooder houses, hog houses, garages and shops.


  • Temp Range: 30° F to 110° F
  • From 24 - 110 Volt Wiring
  • +/- 3° differential
  • Durable Metal Case
  • Mechanical Thermostat
  • On/Off Position
Brand Johnson Control
Manufacturer Part Number T19SC-6C

Manuals & Resources


Customer Reviews

  • 5 Stars

    Happy with it

    Review by on Feb 28, 2017

    Easy to install, like the low range of temperature.

  • 5 Stars

    Great for garage

    Review by on Feb 26, 2017

    Using for garage heater, 1st thermostat (from garage heater manufacture) I purchased did not work well at all. This is perfect and does exactly what a thermostat should do every time. And it looks great on the garage wall, i love having heat for my winter projects now in the garage.

  • 5 Stars


    Review by on Jan 13, 2017

    Nice thermostat! Top quality, well built, and works perfect for me. Holds my garage temperature at 35 degrees without a problem. Using it with an 80,000 btu Mr. Heater Big Max overhead hanging furnace. Very happy customer!

  • 3 Stars

    Not so durable

    Review by on Jan 7, 2017

    This is my second unit, the first only lasted 2 years... we'll see how long this one lasts.

  • 5 Stars

    excellent product

    Review by on Sep 19, 2016

    I have used this product for 8 years. I recommend it to my friends and neighbors. I have 3 of them in use and not a problem.

  • 5 Stars

    Well made!, looks Great! and easy to use

    Review by on Jan 7, 2016

    Arrived Quickly and Packaged to prevent damage... Looks Nice in Barn, Garage, or Shop setting. Set up with my Hot Dawg HDB 75k furnace. Construction looks bullet proof and the Stainless Steel looks nice and I expect it to last a long time. Easy install... Has more features than used at this time...

  • 5 Stars

    great product

    Review by on Mar 3, 2015

    suggested by qc for my hot dawg heater, worked great, and good price.

  • 5 Stars

    Great Product

    Review by on Feb 22, 2015

    I have been using this type of thermostat for 25+ years. Dependable. Holds up well.

  • 1 Stars


    Review by on Feb 6, 2015

    This stat although said to be compatiple with my unit did not work for my application. A $16.00 Honeywell unit availble at a local supplier worked out of the box.

  • 5 Stars

    Good ON/OFF thermostat

    Review by on Dec 31, 2014

    Installed with a used Modine heater in my shop. Robust and simple thermostat. Nice to have the switch's manual on-line at QC Supply for preparation prior to receipt of the parts. Would purchase again.

  • 5 Stars

    Great buy

    Review by on Nov 29, 2014

    Bought this for a Qmark muh 072. Works great. I just wish there was better wiring diagram for the Qmark or the thermostat had to ask a electrician how to wire it.

  • 5 Stars

    Old reliable

    Review by on Nov 19, 2014

    Long time quality thermostat. Does what it's supposed to do. What else can yo ask?

  • 5 Stars


    Review by on Jan 27, 2014

    product was right on time good packaging. nice company to do buinesss with

  • 5 Stars


    Review by on Jan 10, 2013

    I have two QMark MUH072 heaters in my garage and one of the temperature controllers went out. I did some research in an effort to find a duplicate controller. I found one, purchased and installed it but unfortunately, it did not hold up. I contacted QC Supply and they recommended the Johnson Control thermostat #20030. The unit was better made than the original and less expense as well. It has been installed for less than a month but appears to be holding up just fine!

  • 3 Stars


    Review by on Feb 24, 2012

    First thermostat of this type received was dead out of the box. 2nd one seems to work fine. I checked with a local HVAC dealer when I found the first one defective, QC's price was about half theirs so their price is very good.

  • 5 Stars

    Hot Dawg Thermostat

    Review by on Nov 30, 2011

    I needed a thermostat for my new Hot Dawg garage heater. I wanted something to keep the temp above 45 degrees in the winter. Getting cold up here in New England and it seems to be working just fine.

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