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Honeywell CMT907A1041 7-Day Programmable Hard Wired Room Stat
|Price:||£71.24 & FREE Delivery in the UK. Details|
|You Save:||£30.19 (30%)|
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- 7 Day Heating Programme
- Dynamic text display
- Surface or wall mount options
- Attractive Ultra modern slim design
- Auto Summer/Winter time change
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The CMT907 is a 7 day Programmable Room Thermostat. It is designed to provide automatic time and temperature control of domestic heating or cooling systems in domestic or light commercial premises. The slim, ultra modern design complements the extra large LCD screen with the Line of Text (Lot) display and function buttons to ensure simplified programming and operation for all users.
1 x CMT907A1041 Programmer
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Top Customer Reviews
I also like that you can calibrate the room temperature - so if the temperature reading on the controller is a little off, you can adjust it to get it spot-on rather than setting the temperature higher/lower to compensate. Would buy again and recommend. Bought from a local plumbers merchant for £60.25.
The Honeywell CM907 is brilliant and much easier to use than the Drayton! I love the fact I can not set the room temp down to .5 of a deg, where as with my old thermostat I found 21 a little too cold and 22 a little too warm. I also love the "Day off" feature, so you set all your times up for the weekdays and weekends and if you are off during the week, you press the day off button and it runs Sunday's program, so you have a warm house all day. Also I like the party feature, so if you have friends over for dinner and run late past the heatings programmed time, you can press this button to make the heating run and extra hour, or set how long you want it to run, after which it returns to its normal times.
It is covered in easy to use buttons so you don't have to click through tireless menus to find what you want, one or two clicks and it is doing what you want it to do. It is packed with all sorts of features that will make your life easier.
Really easy to install, took me 20 minutes! Mine was connected to a Combi Boiler so all you have is two wires to hook up.
I highly recommend this product to anyone out there who either wants to update their existing programmable thermostat or wants to replace their thermostat with a programmable one.
From what I've found, from some research, the most likely problem is the heat bonded connector on the ribbon cable between the display controller daughter board and the display panel itself. Someone on the Instructables web site claims to have successfully repaired this, but the method is probably not for the faint hearted and can probably only be applied once.
As a consumable, it is pretty expensive, especially given what it is: an Atmel (as used in Arduino) microcontroller, a display and a latching relay, with a few support chips and, presumably, a thermistor. One can buy Android devices for less.
The other significant problem is that the clock keeps very poor time and there is no provision to trim it (at least not one that is officially documented - maybe some of the undocumented jumpers, or unpopulated solder pads allow this). This means you need the display to work, to reset the time, even if you never change the program.
I've also had it latch up on a couple of occasions, on one occasion with the boiler turned on after the Summery mid-day pump exercise (optional). I think it may have been in very dry conditions.
Having said all that, it seems to work well as a time dependent thermostat, and does keep very tight control of the room temperature; the temperature calibration is much better than the clock frequency.
Unfortunately, I'm also dependent on the matching remote sensor (read thermistor in a box), so I may end up throwing good money after bad and replacing it yet again..
Most Recent Customer Reviews
Our previous same model digital display panel went bitty. This one now shows everything clearly again. I hope that this one lasts longer than the previous one.Published 1 day ago by Mr. C. R. Kemp
We had two, for our dual-zone heating system. We had under-floor heating installed, but could not get on with the 5 button multi-function controls that were fitted, so I ordered... Read morePublished 1 month ago by Amazon Customer
Great product, easy to setup and replace old dial thermostat.Published 1 month ago by Mr. Dominic J. Houghton
Very easy to install. Loads of features. Easy to programme. Controls temperature to 1/2 deg C.Published 2 months ago by 9191RogerM
Pricey! But that's how much these things are.
However, my concern is that the display doesn't last long.. Read more
Excellent product, easy to fit and easy to programme, I wish I'd bought one sooner.Published 4 months ago by Carl