Honeywell Home T3 1-Channel Wired Programmable… (901KT)

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Honeywell Home T3 1-Channel Wired Programmable Thermostat (901KT)

Designed to provide automatic time and temperature control of heating systems in homes and apartments. Compatible with 24-230V on/off appliances such as gas boilers, combi-boilers and heat pumps. Suitable for zone valve applications but not with electric heating (240V).

  • 5-35°C Temperature Range
  • Suitable for All Boilers
  • 2 or 3-Wire Installation
  • Mains or Battery-Powered
  • Backlit Digital Display
  • 5/2 Day or 24 Hour Programmable
  • 2 Pre-Set Programmes
  • 5/2 On / Off Periods per Day
  • Boost Facility

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View all: Honeywell Home Wired Thermostats

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Rated 5 out of 5 by from Good replacement thermostat Got this to replace an programmable sunvic which after 14 years the buttons had stopped working Was easy to fit a straight swop just 2. Wires connect to A & B then go through settings following instructions in box took less than 30 mins Cannot yet comment on reliability as only just fitted
Date published: 2022-03-16
Rated 4 out of 5 by from Does the job but instructions! Had an old manual Honeywell dial type and wanted control of temperature settings overnight with gas prices rising. Did not want to spend a fortune. This has 4 daily programmes so will do - Mon to Fri plus weekends. Have not found individual days. The set up instructions are not user friendly but found two YouTube videos to help. Easy to install, four cables down to two. Have an oldish Drayton boiler controller for CH and water with a very old Thorn. On reflection should probably have bought the remote sensor version for room reading rather than fixed in corridor. 4 stars because of instruction nightmare. Performance so far okay, reliability to early to say.
Date published: 2022-02-02
Rated 3 out of 5 by from Check your version Appears there are 2 versions of this stat, a 4 program and a 6 program. This is shown as the 6 program but what you get is the 4 program. Spoke to Honeywell and the 4 program has a grey front panel and the 6 is all white. If you need a 6 program dont buy this till screwfix get it sorted. If you are happy with 4 then this is fine. Cant comment on reliability as only just fitted but its to replace previous honeywell model which lasted 5 years.
Date published: 2021-07-29
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Batteries Supplied/Required 2 x AA Batteries Supplied
Brand Honeywell Home
Central Heating Control Type Thermostats
Colour White
Communication Protocol On/Off
Compatible Boiler Type All Boilers
Control Operation Digital
Current Type AC/DC
Display Type Backlit Digital Display
ERP Control Class Class V
Fixings Supplied Fittings Supplied
Frost Protection Frost Protection Setting
Heating System Mode Heating
Hertz (Hz) 50-60 Hz
Insulation Type Double-Insulated
IP Rating IP30
Manufacturer Guarantee 1 Year Guarantee
Max. Load (Resistive) 5 A
Model Name T3
Model No T3H110A0066
Pack Size 1
Pieces in Pack/Case 1
Product Depth 62 mm
Product Height 98 mm
Product Type Programmable Thermostat
Product Width 136 mm
Programme Facility 5/2 Day or 24 Hour Programmable
Receiver Included Receiver Not Included
Smart Compatibility Not Smart
Switching Type SPDT
Temperature Range 5-35 °C
Terminal Capacity Terminals accept 1mm² to 2 x 2.5mm² cables
Thermostat Mount Type Fits Standard UK Backplate
Thermostat Power Source Mains or Battery-Powered
Thermostat Voltage 230 V
Wireless/Wired Wired


Instruction Manual