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Master Flow

Model # PT6

Internet # 100098472

Store SKU # 144967

Manually Adjustable Thermostat for Power Vent

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

$26.50 /each
  • Adjustable Power Thermostat
  • Suitable for all Master Flow Brand Single-Speed Power Vents
  • Pre-wired for installation




Model # PT6

Internet # 100098472

Store SKU # 144967

Compatible with all single speed Master Flow power vents and fully adjustable for all climate conditions. Activated by temperature, helping power vents reduce damaging moisture. UL Listed and wired for easy installation.

  • Compatible with all single speed Master Flow and LL Building Products power vents
  • Thermostat temperature ranges can be manually set from 60 degrees to 120 degrees
  • Helps power ventilator reduce damaging attic heat & moisture
  • Adjustable thermostat powers your fan on/off automatically
  • Wired for easy installation
  • UL listed

Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Amperage (amps) 
Color/Finish Family 
Galvanized Steel 
Product Weight (lb.) 
1 lb 
Warranty / Certifications
Manufacturer Warranty 
1-year Limited Warranty 


Rated 4.4 out of 5 by 25 reviewers.
Rated 3.0 out of 5.0 by Does the job, but has accuracy issues. Thermostat is a basic bimetal, that make/break contacts based on temperature. The instructions may not be great but I found installation self explanatory. There are 2 wires to the thermostat that make/break the connection to the load. The motor's neutral goes straight to the power neutral, both wires are white in most cases. Ground goes to the green grounding screw. The thermostat wires hook up like an ordinary light switch. The thermostat works but I found mine to be 10-15 degrees off. With a 110 setting the thermostat kicks the fan on @ 120-125. Measure actual attic temperature and set thermostat accordingly. Temperature "spread" doesn't seem to be quite enough as the fan cycles on/off after the sun goes down. I'd rather see the thermostat have a larger "spread" between on and off, perhaps 10 to 20 degrees. July 24, 2011
Rated 4.0 out of 5.0 by Great thermostat, easy to install This was a snap to install and it worked with no problems. October 10, 2015
Rated 4.0 out of 5.0 by Had to have it. Home Depot sells attic fans in the store. But for some reason not the regulator thermostat. So it was purchased on line. Welcome to big-box logic. Made a simple project turn into something for two weekends waiting on parts. May 5, 2015
Rated 5.0 out of 5.0 by Used this for the attic exhaust fan. Works well. Bought this for the attic exhaust after the last one burnt out (different manufacturer). The attic fan helps keep the temperature down in the lower levels in summer. The thermostat on this seems to work like clockwork & has made a noticeable different in the temperature downstairs. Had to hire an electrician to install it as I could not make out the instructions well. August 25, 2015
Rated 5.0 out of 5.0 very satisfied Had to buy a new one when the one on the attic fan did not work that I had bought online April 28, 2015
Rated 1.0 out of 5.0 by Part-Time Adjustable Thermostat I have replaced three of these thermostats on my powered attic fan. One of them stuck and finally burned out the fan motor when i was working out of town and it ran the fan continually for a month straight. They seem to work OK for a while but soon I have to cut it off at the shut-off switch when it sticks. i have tried different adjustments time & time again but they do not perform flawlessly so I can trust it. I am looking for a digital thermostat to replace it. It might be more dependable ? July 7, 2015
Rated 4.0 out of 5.0 by does what it suppose to We bought it to make a outlet with it. Cuts any 120 AC fan on. September 30, 2014
Rated 5.0 out of 5.0 by Terrific product for a fan Ideal product for a fan. We installed a timer for our garage fan to help with cooling, but adding this thermostat really makes our fan run efficiently. July 23, 2015
  • 2015-11-29 T11:12:22.981-06:00
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