Cadet Freezebuster FB3/TC3 Thermocube Ivory In-Line Limiting Plug-In Freeze Protection Thermostat-FB3 - The Home Depot


Model # FB3

Internet # 202849705

Freezebuster FB3/TC3 Thermocube Ivory In-Line Limiting Plug-In Freeze Protection Thermostat

Cadet Freezebuster FB3/TC3 Thermocube Ivory In-Line Limiting Plug-In Freeze Protection Thermostat

This item has been discontinued.
The Home Depot no longer carries this specific product.

$23.52 / each


Model # FB3

Internet # 202849705

Store SO SKU # 414069

The Freezebuster FB3/TC3 Ivory In-Line Limiting Thermostat is designed with 2 receptacles to automatically control electric heaters, heat tapes and heat lamps, helping prevent freezes while economically using energy. This device conveniently plugs in to a 120-volt outlet and affords a 35 - 45-degree Fahrenheit freeze-protection range.

  • Automatically switches electric heaters, heat tapes and heat lamps to help prevent freezing
  • 2 outlets control 2 heating devices, up to a total of 1800 watts, 15 amps
  • Helps save energy by activating equipment only when needed
  • Activates when surrounding temperature drops to 35 degrees
  • Turns off at 45 degrees to save energy
  • Conveniently plugs in to 120-volt outlets
  • Ideal for pump houses, well house, chicken coops, greenhouses or anywhere you need freeze protection


Assembled Depth (in.)  2.0 in  Assembled Height (in.)  4 in 
Assembled Width (in.)  6 in  Product Depth (in.) 
Product Height (ft.)  4.0  Product Width (in.) 
Color Family  Beige / Cream  Control Type  Dial 
Number of HVAC Zones  1.0  Operation Type  Mechanical 
Returnable  90-Day  Shape  Rectangle 
Thermostat Type  Heat Only 
Warranty / Certifications
ENERGY STAR Certified  No  Manufacturer Warranty  1-Year Warranty 


Rated 3.6 out of 5 by 10 reviewers.
Rated 5.0 out of 5.0 by Thermocube Works Well Great Product! I have used this to bring on auxiliary emergency heat for my chicken coop for three years. I use a 100 w and a 150 w reptile bulb normally but when the temp near the floor drops to 35 degrees F the thermocube brings on another 250 w reptile bulb. I use a remote temp transmitter so the temp can be read from the house for safety checks and two dial thermometers in the coop so I can read both the floor temp and the elevated nesting and resting area temp. The thermocube dependably brings the auxiliary heat on at 35 degrees F and off at 45 degrees F keeping the coop between 50 and 60 degrees F, even at -10 to -20 outside. (the coop inside dimension is 7' x 7' x nearly 6' high and is well insulated.) February 27, 2014
Rated 5.0 out of 5.0 by unusual product the plug starts and stops the heating source within a small temp range. in my basement i have it set up with a 1300w small heater near some water pipes. if the temp dives this will kick in and turn my heater on and keep it on until it rises to the preset limit and it cuts off. rinse, lather,repeat. product could be used many ways. just have to see a need December 18, 2014
Rated 1.0 out of 5.0 by Just not sure Purchased this no-freeze plug to use in my well house so that I don't have frozen pipes. So far it has not come on that I've been able to tell and the temperature outside has been in the 30's overnight. Supposedly this plug should supply electricity at a temperature well above 32F degrees and it just doesn't seem to be happening. December 17, 2014
Rated 5.0 out of 5.0 by Perfect for freeze protection I use the Thermocube for freeze protection in the plumbing bay of my RV. I have a small 1500 W heater connected to it. I can prevent freezing without running a heater constantly. On at 35 deg. and off at 45 deg. is perfect! February 14, 2013
Rated 4.0 out of 5.0 by Does what I needed I use this to turn on the heat lamp in my chicken coop to help keep the water from freezing. It turns on and off just fine, but I really don't know at which temperatures. I don't know about its longevity especially since it was so difficult to get plugged in. December 25, 2013
Rated 3.0 out of 5.0 by It seems to work, but reliability is as yet unknown. The stated turn on temperature is "approximately" 35 f. "Approximately" is correct. So far, the unit kicks on but the air temperature is closer to 33/34 f. before it does so. There is very little room for error that close to freezing. My recommendation is a guarded one. December 10, 2013
Rated 4.0 out of 5.0 by does the job We had an expensive greenhouse heater with a thermostat jammed in the on position. I couldn't find a replacement part, so we opted for the freeze buster. It's actually a better alternative because its lowest setting on the heater was 65degrees. Through the last few weeks with nighttime temps hovering in the single digits, our remote thermometer reads 45 degrees plus or minus 5. Good product. February 4, 2014
Rated 4.0 out of 5.0 by Simple and does the job A great way to control freeze protection heaters without guesswork. This was purchased as a replacement for an older model that was still working fine, just very old (and nothing lasts forever, especially in a damp well house). December 27, 2013
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