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Programmable 7-Day Thermostat Saves Energy While Keeping You Comfortable
Venstar T1800 7-Day Programmable Digital Thermostat
Venstar T1800 7-Day Programmable Digital Thermostat
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Venstar T1800 7-Day Programmable Digital Thermostat
Item# 30411A
Price: Normally $114.99 
Hot Deal $81.93
Open Box (Qty:1) $71.40 ea - Add to cart
Free shipping on orders over $50 - See Details


  • Programmable to turn on at specific times each day
  • Works with heat/cool and heat pump systems
  • Controllable by phone using an optional add-on
  • Controls up to 3 heat stages and 2 cool stages
  • ENERGY STAR rated

Essential Info

Save energy and money, as a result of reduced electric bills, by running your heater and air conditioning only when you're at home. The 7-Day Programmable Digital Thermostat provides the convenience of being able to program the heater to turn on half an hour before you normally arrive home or to run the air conditioning only when necessary. Because it is programmable over seven days you can even schedule different programs for different days of the week which is extremely convenient for those with varying schedules or are home on the weekends. Compatible with both heat/cool and heat pump systems, the 7-Day Programmable Digital Thermostat controls up to three heat stages as well as two cool stages and is ENERGY STAR rated to ensure efficiency while in use.


What's Included

  • 1x - Thermostat
  • 1x - Mounting hardware
  • 1x - Manual
  • 1x - Installation instructions
  • More Info

    Easy to Program
    Programming the 7-Day Programmable Digital Thermostat is easy, thanks to a bright backlit display and button legends. If you're setting up multiple thermostats in your home to control the temperature in different zones, you can even program them using a Venstar EZ Thermostat Programmer (sold separately), which lets you upload your settings to different rooms quickly.

    Adjust the Temperature Remotely Via Phone
    Connect the Thermostat Telephone Controller (sold separately) to your thermostat, and you'll be able to call in and adjust the temperature using touchtone buttons or voice recognition commands.

    Automatic or Manual Temperature Adjusting
    Just because you've set up your system doesn't mean you can't adjust the temperature manually when you're at home. For maximum ease of use, you can even use the Thermostat IR Control & Receiver, which lets you adjust the temperature from the comfort of your sofa using a wireless remote!

    Additional Features
    Control a compatible humidifier by connecting the Thermostat Humidity Module to your thermostat. This accesory also allows your thermostat to display relative humidity levels or trigger a dehumidity process. Additional features include an auxiliary heat indicator and the option of adding an outdoor sensor.

    Additional Programmable Thermostats AvailableThe 7-Day Programmable Digital Thermostat is also available for dual-fuel systems. A 1-Day Programmable Digital Thermostat is also available.

    Home Control Integration
    Do you currently have an INSTEON network in your home? Try out the INSTEON Remote Controlled Thermostat kit, which includes this thermostat with an INSTEON Thermostat Adapter, giving you the power to control the temperature from anywhere in your home.

    Please note: If you do not have a "common" wire running to your thermostat from your heating/cooling equipment, you may need either to run a new wire or to install a thermostat Add-A-Wire Accessory kit.

    This product has been awarded the ENERGY STAR.



    Manufacturer Product No.:T1800
    Dimensions:4 3/4" x 4 1/4" x 1 1/8"
    Control Stages:3 heat, 2 cool
    Compatible Systems:Heat/cool; heat pump
    Approvals:UL listed, FCC compliant, Energy Star Compliant
    Warranty:1 year, limited

    Important notes:
    Defective exchanges for identical item within 30 days of purchase. After 30 days, please contact the manufacturer.
    Manufacturer contact information: US Air Conditioning Distributors, Tel: (626) 854-4555


    Wiring Diagram  Open View     
    Wiring Diagram  Open View     


    54 Ratings
    5 star: 56%  (30)
    4 star: 15%  (8)
    3 star: 11%  (6)
    2 star: 7%  (4)
    1 star: 11%  (6)
    Average Customer Rating
    (54 customer ratings)
    Share your thoughts with other customers
    DALE -- sun city, AZ   3/8/2014
    Good, not great product once you get past the wiring...because my old thermo was nicely lit at night. This one is not and you have to touch a button to get it lit, and then it's very dim. If you hit the round button, you accidently change from cool to heat. Also, it would help immensely if Smarthome included wiring tips for a heat pump. The colors that Venstar finally gave me (Blue is Common) is what got me going. My old Trane/Honeywell is a much nicer one, but remote access, on the Venstar is also really great. Now I have to train my wife to not hit the round button first.
    ERIC -- seabrook, NH   12/12/2013
    The t1800 with humidity control, has worked without problems for about one year now in combination with isy 994.
    Nancy Fox -- long beach, CA   12/8/2013
    I had the same problem with the backlight within 6 months of installation.Finally,the whole unit quit working and I had to replace it. Poor quality.
    Happy Customer -- California   9/30/2013
    I have three of these in my house. Great Product!!!
    Mike -- Huntington Beach   7/22/2013
    I also bought this thermostat, worked well until the LCD back light went out after 6 months! really? these lights should last 20 years! too bad, it would have been a great thermostat.
    Ted Browning -- seattle, WA   2/8/2013
    Mainly bought this to connect up toi my Insteaon remote control system. Never used any of the fancy features. Just programmed via Indigo software. Thermostat worked for exactly 2 years. I was recently on vacation out of country and it died. No backlight. Family had to use space heaters until my return. Since it's past the 1-year warranty I'm out of luck. Poor quality. I bought a different thermostat that is remote controllable and so simple to use.
    Tim -- san diego, California   1/24/2013
    After a year or so I also encountered the problem where the backlight no longer works. I tried changing the settings from the menu with no success. Very disappointed if there is no solution for this.
    Randy -- los angeles, CA   1/1/2013
    Thermostat works fine but had to have my original unit replaced by the manufacturer after 4 months of use as the LCD backlight quit working. Now, in my second year of use the backlight on the replacement unit quit working and the manufacturer says I'm past the 1 year warranty period. Low quality if you ask me. I'm looking for a different brand.
    JOSEPH F -- green valley, AZ   6/28/2012
    Very flexible and user friendly.
    DANIEL -- chagrin falls, OH   2/23/2012
    had to find an extra wire, otherwise no problem installing.
    CHET -- austin, TX   2/11/2012
    I purchased this thermostat with the "Add-a-Wireless Thermostat kit". Overall the products have been working well but they are not as intuitive as my old (Honeywell) thermostat.
    HAROLD -- rockford, MI   1/27/2012
    I was looking for a programable thermostat with lots of flexability. This seems to do all the variations I want - anticipation of temps, easy fan only, 4 time of day settings with easy up and down temp settings. Its price is much less than many thermostats I looked at that have the same type of features.
    Andy -- San Diego   12/11/2011
    After 2 years of problem free operatio, the backlight has failed. I see from other comments that I am not the first. This is a bother and an inconvenience, but not enough of one to have me upgrade to another $100+ Venstar unit.I will call the manufacturer and see what they say.
    DOUGLAS -- worcester, MA   10/20/2011
    Full featured and has lots of different options to customize the wway it operates. The installation was simple and the instructions were easy to understand and it copletely met my needs.
    Joe M -- wellington, Florida   10/5/2011
    After a year in operation, the LCD backlight on my unit has stopped working and no longer comes on at night or when keys are depressed.. I have two of these for two zones and the other unit appears fine. Overall the unit has been reliable otherwise. I am also waiting for the T5800 color touch line to be introduced with Insteon adapter support and will probably replace them though. I have contacted the manufacturer Venstar to see what can be done in the interim since it's beyond Smarthome's 30 day defective exchange policy.
    BRIAN -- forney, TX   9/29/2011
    works great
    FREDERICK -- poughquag, NY   3/28/2011
    did not meet my requirements
    NICHOLAS -- austin, TX   3/10/2011
    Works great but the installation instructions were a little vague.
    JOHN -- san diego, CA   2/24/2011
    Works perfectly. I love the backlit display and very clean look.
    TED -- lake forest park, WA   2/21/2011
    Thermostat works like a charm. Had a bit of trouble installing as the instructions do not specify exactly how to open the thermostat. It basically takes a lot of force to unplug the pins from the contacts on the back of the device. Instructions could have been more specific about this.


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