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Honeywell Home T4 Wired Programmable Thermostat (8672V)

£ 69.99INC VAT

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Honeywell Home T4 Wired Programmable Thermostat (8672V)

Simplifies temperature scheduling, offering a high level of usability and automated control. Intuitive screen interface offers easy and optimal heating adjustment. Automated modulation control improves energy efficiency and optimisation features learn how the room is heated, requiring less user interaction. Ideal for domestic and light commercial premises.

  • 7 Day, 5/2 Day or 24 Hour Programmable
  • 3 Pre-Set Programmes
  • 4 On / Off Periods per Day
  • Backlit LCD Display
  • Frost Protection
  • 2 or 3-Wire Installation
  • Manual Override Facility
  • Holiday Mode
  • Automatic BST/GMT Time Change
  • 1 Year Guarantee

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View all: Honeywell Home Wired Thermostats

£69.99INC VAT

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Honeywell Home T4 Wired Programmable Thermostat is rated 4.4 out of 5 by 9.
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Rated 4 out of 5 by from Great item but.. This is a great little controller, easy to set up and use, 2 wire control perfect for combi boilers with single link stat input (take the red link out of the terminals marked "room stat" in the boiler and wire up terminals A & B from the T4 stat to these ones, any way round, using 1.5mm 2 core cable) But...two things. 1. Screwfix state "optimization features blah blah" - well yeah on the T4M which they don't sell...the T4 (this item) does NOT have optimization features. 2. They state it's 230v operation....it isn't - it's battery operated but comes with batteries. The 230v rating is actually the output contacts that are rated at 230v / 3A which is enough to fire any boiler with no issues from contact arcing later on...but do NOT use this to run a pump...it needs to control a local relay first or a contactor that is rated to take the pump motor current. If you have a combi boiler (mains fed, does LPHW & CHW independently) then you're fine, the boiler controls the pump itself. Good bit of kit though. Well worth getting.
Date published: 2020-06-23
Rated 5 out of 5 by from Looks Good and easy to use Purchased to replace an older Honeywell programmer. Unit was very easy to fit, the holes lined up with those from the old unit and just 2 wires to change. Unit was fitted and working in just 20 minutes. Programme instructions are simple and the unit looks good and modern. Marked down on reliability as it has not been fitted long enough to judge.
Date published: 2020-05-23
Rated 5 out of 5 by from Diy'er, Easy to fit. Fitted easily and working in minutes, took me a while to realise the heating periods are different to a 'on off' non prog thermostat, and all that happens on here is each heating period changes and will only fire up if the house temp falls below the off period temp. Nice large Icons and font.
Date published: 2020-03-08
Rated 5 out of 5 by from Easy to install Bought to replace our faulty one. So easy to install(only 2 wires to connect). Also easy to program & as already pre programmed so was a doddle to set up. A lot of good features including auto BST/GMT time adjust.
Date published: 2020-02-15
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can this be used to replace a T40 thermostat

Asked by: nonameleftq

Does this thermostat only need batteries in case of mains failure

Does the thermostat only need batteries in case of mains failure or is it actually battery powered and will stop working if the batteries fail.
Asked by: SwissSimon
No, it's battery operated and without batteries it won't work. Takes 2 AA (supplied) which should last a year. Easy to replace
Answered by: PapiChulo
Date published: 2020-06-24

Can the device have 6 temperature settings per day

I have read in the manual that parameter 7 allows you to change the default 4 temperatures per day to 6.
Asked by: FreshAirIan
Yes, The installation leaflet gives the procedure to change the default 4 settings per day to 6, which I have done.
Answered by: DaveStaffs
Date published: 2020-03-11

Can this be used to replace a CM907 thermostat?

The LCD screen on my CM 907 has gone so looking for a replacement
Asked by: GraceG

Honeywell CM67 replacement/equivalent

Does it have a direct replacement
Asked by: Rower1968
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Specification
Batteries Supplied/Required 2 x AA Batteries Required
Brand Honeywell Home
Central Heating Control Type Programmers
Compatible Boiler Type All Boilers
Display Type Backlit LCD Display
ERP Control Class Class IV
Frost Protection Frost Protection
Installation Type 2 or 3-Wire Installation
Manufacturer Guarantee 1 Year Guarantee
Model Name T4H110A1021
Model No T4
Pack Size 1
Pieces in Pack/Case 1
Power Voltage Supply 230 / 24 V
Product Depth 26 mm
Product Height 95 mm
Product Type Wired Programmable Thermostat
Product Width 135 mm
Programme Facility 7 Day, 5/2 Day or 24 Hour Programmable
Smart Compatibility Not Smart
Switching Capacity 0.5-5 / 0.5-3 A
Switch Type On/Off Switch
Temperature Range 0-50 °C
Zoning Level One