- 3 adjustable settings for temperature control from 40°F to 110°F
- Simplifies duct downstream mounting from Suncourt inductor fans
- Ideal for devices like alarms, dampers, fans, and 110-volt lights
- See More Details
Frequently Bought Together
Price:
$2699
Product Overview
The Ductstat Plug-In Thermostat Temperature Sensitive Switch is designed to turn on and off when it detects a change in temperature from the ambient. The temperature range is between 40 - 110 Degree F. This thermostat features 3 adjustable settings. It is designed to mount the duct downstream from an Inductor fan. This thermostat also helps control various devices including alarms, heat lamps, dampers, fans and 110-Volt lights.
- Can be used with Suncourt, in-line duct fan, axial fan or centrifugal fan
- Helps control various devices including arms, heat lamps, dampers, fans and 110-Volt lights
- Temperature ranges 40 110F
- Rated at 5 Amp maximum load
- Features a grounded power cord and switched outlet
- Helps simplify installation of Suncourt inductor fans
- Tested to ANSI/UL standard 873 and CSA 22.2
- Click here for more information on Electronic Recycling Programs
Info & Guides
Product Overview
- 3 adjustable settings for temperature control from 40°F to 110°F
- Simplifies duct downstream mounting from Suncourt inductor fans
- Ideal for devices like alarms, dampers, fans, and 110-volt lights
Specifications
Dimensions
Product Depth (in.)
3.25
Product Height (in.)
2.25
Product Width (in.)
5.5
Details
Brand/Model Compatibility
Suncourt, In-Line Duct Fan, Axial Fan, Centrifugal fan, Booster fan,
HVAC application
All HVAC types
Product Weight (lb.)
1.25
Returnable
180-Day
Warranty / Certifications
Manufacturer Warranty
1 year limited
Questions & Answers
47Questions60Answers
I need a switch to come on at a specific temperature, say 75°, to turn on an exhaust fan in a roo...
Asked by Bouser November 21, 20189
AnswersYes, this does exactly that. It has dial for adjustment, but there is no readout for it, so you need to adjust as you use it. They give the range on the box and you can set it for turning on when too hot or turning on when too cold. An economical solution to putting in a booster fan. You just need to make sure this box is in the area for where you want the temperature being sensed.
can this be used with a garage exhaust fan
Asked by Sfc1 April 29, 20187
AnswersIt has to be installed onto a duct to work. It could be used to activate a garage exhaust fan, but only if it was attached to a supply duct or something like that.
If all the main first floor ducting is in the crawl space, is there any way to use this thermosta...
Asked by music1 May 30, 20187
AnswersYes, so long as you can access the duct work at a point that is not in the crawl space. Then I would think putting a switched outlet that you would plug this thermostat into and have the switch at a convenient location from the outlet the switch and thermostat are connected to would serve your purpose.
I need to turn on a small heat lamp to keep plants from frost damage. Turn on at about 45 degree...
Asked by Doc February 7, 20196
AnswersNo, I don't think this unit will work for that application. It has to be attached to a duct and senses the temperature inside the duct. I think a regular thermostat mounted to a board or something similar is probably what is needed here.
Can this be used to run multiple fans? I need to be able to install fans on 4 different ducts an...
Asked by CrisCo June 22, 20186
AnswersYou may use as many loads as you want as long as the total amperage for all loads does not exceed the 5 Amp limit of the switch. The thermostat switch is supplied with a replaceable 5 Amp fuse.
I have a security dvr and wifi in a cabinet that I have to put in a sync fan for exhaust and inta...
Asked by David April 17, 20185
AnswersThe switch is designed to be mounted on a duct - it senses temperature by direct contact, so ambient temperature sensing may be slow/unreliable. The set temperatures are adjustable with an analog dial; I am not sure exactly what the numeric limits are. It works in my application (controlling an inline fan) for normal air-conditioning and heating temperature ranges.
What is the max temp that this can be subjected to
Asked by Honeydoer December 9, 20155
AnswersI want to turn a lamp on when temp is below 25 and 0ff at 30
Can I set unit up for summertime use only. This unit will be in subfloor in between 1st and 2nd f...
Asked by Gibby July 15, 20185
AnswersThe settings are set then power is turned on. As long as you can control the power to the Ductstat, then you can set it on or off for the winter.
Can I use this to control 2 fans?
Asked by GB November 27, 20175
AnswersYes depending on the fan size more than two
Can unit be used to control heat lamps? In a cold environment in need them to light at 40 degrees...
Asked by greenhouseheat September 15, 20185
AnswersYes, that is what I bought this for. We control heat lamps with this thermostat to keep our building at 40 degrees during the winter months.
Customer Reviews
Nov 1, 2016
I was looking for a 120v thermostat to use for various test projects, as well as running a heatin...
I was looking for a 120v thermostat to use for various test projects, as well as running a heating circulator in my garage when it gets below 40f. In relation to other t-stat options, this unit comes already paired with an outlet and can operate in either heating or cooling mode on the same output (simple = good).
The reason I only gave it 4 stars is the unit's slide switch slot didn't exactly line up with the switch, so it wouldn't switch into cooling mode...a little trimming was required to made cooling work. It would also be nice if it had a temperature display to help set the relay closure, though I realize it's intended to be used on a duct in the basement.
by Solarsev
Sep 27, 2016
Great little switch for the price
Can't beat it for the price. Easy to mount with just 4 screws and a hole for the air to pass through to the sensor. Has a switch for either a 3 or 7 degree differential to start and stop the fan. Also has a variable control to set the "On" point of the fan...switchable to work with hot or cold air. Overall great idea. Remember, you need to screw this directly to the duct work that you are using to sense the temperature change. Will work on flat or round ducting. I used this to exhaust hot air coming off of the back of a wine room chiller and it works great...allowed me to pull the hot air from the back of the chiller without modifying the chiller. Had to do this because the chiller is in a closet and would heat up the closet, if the hot air wasn't removed, causing the chiller to be inefficient.
by DB
Jul 14, 2016
Plug-in thermostat switch has limited functionality
I installed this plug-in thermostat switch with a 10" inline duct booster fan in order to turn the booster fan on and off with the air conditioning. The fan was installed in the attic of my town home in order to provide better HVAC airflow to the 2nd floor. In hot weather, the temperature in the attic ranges from 80's at night to 120 degrees during the day. The extreme temperature variations make it difficult to find a setting for the thermostat that will turn the fan on and off with the a/c. So far the thermostat setting either keeps the fan on all the time or fails to turn it on when the a/c comes on.
I have determined that in hot weather, it is advantageous to have the duct fan stay on all the time. When the a/c is not running there is still cool air in the duct work, so having the fan run continuously between the a/c cycles actually helps cool the 2nd floor.
I am considering a bluetooth or wi-fi controlled outlet instead of the thermostat. That would allow me to turn the fan on or off with a smartphone rather than having to crawl up into the attic to adjust the thermostat.
by SLB
Response from Suncourt Product ExpertJul 18, 2016
Thank you for your comments. There could be a couple of different things going on here. Make sure you set the DuctStat during the day when the temperature is warm in your attic. Do this when the air conditioning is not running then see if it starts cycling normally. Another possibility is that the attic is getting so hot that it is right at or exceeding the temperature rating of the unit, which is 140F. Temperatures this high can cause the unit to malfunction at times. Try to move the DuctStat from the attic and attach it to the same duct in another location if you can. There is also an on setting on the DuctStat that will keep the fan running all of the time if you choose to use it that way.
Apr 8, 2016
Best purchase Ever
We had an issue with our lower level rec. room being cold. It is around 1000 sq ft. with 4 heat vents that are placed in the ceiling tiles. The heat not only stayed at the top of the ceiling, but also above the ceiling tiles. We placed 4 , 6in in line duct fans in the ducts, then took an 8in in line duct fan and placed it vertical and taped a piece of screen on the intake (back) of fan and placed the output on a ceiling tile, (had to place a piece of veneer wood to support fan, this fan is used to draw the heat out of the ceiling and blow down, we ran extension cords (since these were all corded), and placed the Ductstat on the heat trunk, plugged into the outlet, then plugged a 6 placed power strip into the Ductstat and plugged all the extension cords in, We turned on the furnace, and regulated the temperature on the Ductstat, it ran all the fans perfect. Living in Michigan the winters are cold and our lower level would be in the higher 50's, With the furnace set on 70, the lower level is now a nice 69, It works perfect. The fans run longer once the furnace blower stops, but that's perfect. Keeps the air circulating longer, we have 2 knee walls that are exposed foundation, which we will insulate soon, that also will help in keeping the lower level wonderful too
by Butternut
Sep 10, 2015
Does the job...
Used to turn on the 6" inline duct fan as part of my custom-designed ventilation system to cool my two-car garage this summer...it does exactly what it is supposed to....turns the fan on when the temperature reaches a certain point, and turns it off when it's cooled down.
by Den317
Mar 2, 2015
Using to control a thru-wall fan
I installed a Suncourt thru-wall fan to exhaust a utility room and used this temperature switch to automatically turn it on and off when the temperature inside exceeds 70 degrees. The controls are manually set and work very well once it's dialed in. I'm going to buy another unit in the summer to control a desk fan so that it turns off when the temperature drops to a certain level and turns back on when it's get hot. This is a very versatile switch with many uses.
by DadFixedIt
Oct 24, 2013
Easy to install
This was a fine purchase. I needed to control my duct fan that I had installed for a long run of duct to the far end of the house.This was an excellent solution.The Duct Stat was so easy to install and came with the screws needed. The instructions for the adjustments made the job very simple. The fan now turns on and off just the way that I like it. Clever and easy.
by dave
Dec 19, 2012
Flawed concept
This product utilizes an inherently flawed concept. The way it works (per the instructions) is as follows: You set the thermostat so that it just turns off when the duct reaches room temperature. Then, when the furnace blower kicks in and pushes heat through the duct, the thermostat senses the increased temperature and turns on the duct fan. The first problem is that the thermostat does not turn on the duct fan until about 5 minutes after the furnace blower turns on. Sometimes it actually turns on after the furnace blower has already shut off. And then when the furnace blower shuts off, the duct fan continues to run . . . . and run and run and run. It stays on for another 10 to 15 minutes until the duct cools all the way back down to room temperature! So your duct fan is blowing cool air into the room unnecessarily for this extended period. I am going to return the product and connect the duct fan directly to the furnace so that it will go on when the furnace blower goes on and off when the furnace blower shuts off. This product may be fine for other applications, but not for controlling a duct fan.
by Andy
Explore More on homedepot.com
Kitchen Design and Remodel
Top Brands
HVAC and Electrical
Tools and Hardware
Plumbing Parts
Bathroom