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Honeywell 7 Day Programmable Thermostat CM707

4.5 out of 5 stars 18 customer reviews

Price: £66.20 & FREE Delivery in the UK. Details
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Product Information

Technical Details
Part Number CMT707A1029
Item Weight222 g
Product Dimensions16 x 11.6 x 5 cm
Item model numberCM707
Batteries Included?No
Batteries Required?No
  
Additional Information
ASINB009ERXY30
Best Sellers Rank 69,578 in DIY & Tools (See top 100)
Shipping Weight222 g
Delivery Destinations:Visit the Delivery Destinations Help page to see where this item can be delivered.
Date First Available21 Sept. 2012
  
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Product Description

Honeywell CM707 7 Day Programmable Thermostat

This is a simple to program, easy to use programmable thermostat which can control thge temperature and timing of the heat within your building, it is mainly used in households. With a large LCD screen it is clear to use the thermostat and is compatible with most combi boilers and central heating systems. Two wire, volt free connections are ideal for use with combination boilers. It can also be programmed upto 7 days. Features of the CM707:
  • Battery powered
  • Automatic Summer/Winter time change
  • Optional backlight
  • Energy saving TPI control
  • Up to four independent time & temperature settings
  • 1 day or 7 day hard-wired or wireless models



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Customer Questions & Answers

Customer Reviews

4.5 out of 5 stars
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Top Customer Reviews

Verified Purchase
These units are very easy to fit. The backplate can be screwed into a standard electrical partess, or directly into a wall. The switch wires for the boiler are connected via screw terminals on the backplate- but remember to switch off the power to your boiler first in case the wires are live! Once fitted, the front of the programmer hinges at the top, then clicks into place at the bottom. It's supplied with 2 AA alkaline batteries, which will last for years.

The time & date are also easy to set, and there are 4 programmable time zones, which can be set in any day, at any temperature. Each day can be set with its own programme, or the programme can be copied to other days- so every day of the week can have the same programme- or you can have a different programme at weekends etc. There are also other useful features, such as automatic Summer/Winter time changing, & a maximum temperature limit setting. It can also be set to 'manual', where it acts as a simple digital thermostat without any timer features, or 'off' where the heating will only come on if the ambient temperature falls to 5°C to prevent freezing. Lastly, there is a 'holiday' button, where the unit can be turned off for a pre-set number of days.

It's attractive, and there is an openable cover which normally hides most of the buttons, except the ones needed for everyday functions. The pleasant blue backlight comes on when any button is pressed. It's hard to see how this device could be improved, as it seems to cover most options which anyone could need to control their heating system, so I've given it 5 stars. My only minor gripe is that it's a little pricey, but if programmed well, it should pay for itself with reduced energy bills.
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Verified Purchase
I have three of these - two controlling underfloor heating manifold valves and one controlling my radiator circuit.

The real beauty of this unit is that you can leave the heating time clock on 24hrs, and control the whole thing through this without faffing around changing time schedules. The PI and optimisation functions are worth exploring (but make sure you research them first before changing the settings). They are particularly relevant for underfloor heating where there is a high, low response thermal mass (the floor slab) to control. I can keep the temperature at a base level, then give it a couple of hours boost during the day, and it will be up to temperature when I get home when it throttles back again and the residual heat keeps the room warm.

If you do use the PI function, leave it to self learn for a week or so before you change the temperatures and confuse it.....

Expensive item but it will definitely save on your fuel bills. If you have partners or kids who continually turn the heating up to it's maximum you can limit the highest temperature it can go to......very useful!

Easy to wire - just a live (usually from the time clock if you have one) and switched live to wire in. No need for a neutral as the clock is powered by the batteries. If you have a neutral in your old room stat it's normally for an accelerator / anticipator which mechanical stats need to improve accuracy. There may also have been one if your old stat has an indicator lamp. Anyway, you can just terminate this in the wall box (if you can track it I'd also disconnect the other end and leave safe just for consistency).

Highly recommended.
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Verified Purchase
Very easy to fit - just replace a normal room-stat.

Fairly easy to programme - gives four different settings (temperature) a day at times to suit you - easy to repeat for repetitive days, or have separate settings daily as needed, eg weekends or regular early starts.

The optimising setting means that you do not have to guess how long it takes to heat up the house/room - well not much anyway.

Worth every penny of the extra cost over cheaper models.
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Verified Purchase
I used this Honeywell programmable thermostat as a replacement for my old thermostat controlling my combi boiler, very easy to change (just two wires) I find this very accurate and keeps the temperature constant, I would definitely recommend this product
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This thermostat worked great then changed the batteries guess the Unit is just over two years old got a spanner symbol flashing then the thermostat stopped working checking on the web looks like I'm not the first to have this problem.
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Verified Purchase
Great control over the heating house always cosy. Boiler seems to be on less so will wait to see what the bills are like. Like the holiday setting it was nice to come home from a week away in the sun to a warm house.
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This is great for setting differing temperatures during the day and on different days (ie lower temperature whilst out at work etc). Potentially saves money and saves having to remember to manually change the temperature. Also means you come home to a nice cosy home.

Only reason I gave four stars instead of five is that the relay is quite noisy when switching, particularly compared to my previous thermostat.
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Swapped over from an old style rotary on a Gas c/h system. Easy to fit despite having four wires in the wall and only needing two of them - live and switched live (neutral and earth not required). Programming easy and having six time periods each day does allow savings to be made when house is empty (although I have yet to see a bill!) Called Honeywell for advice by email and they responded quickly . . .
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