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Honeywell DT90E Wired Digital Room Thermostat


Honeywell DT90E Wired Digital Room Thermostat

The Honeywell DT90E Wired Digital Room Thermostat leads the way in energy efficient control by using advanced technology to maximise the energy efficiency of the heating system. The Honeywell DT90E Wired Digital Room Thermostat has been designed to provide automatic temperature control of gas or oil fired boiler systems, underfloor heating, electric heating and zoning systems.  

Energy efficiency is addressed by state of the art control performance qualifying it as a Load Compensator. The Honeywell DT90E Room Stat has an ECO button energy saving feature which gives timed setback or boosts temperatures to reduce energy demand.
The Honeywell DT90E Digital Room Stat is a TPI (Time Proportional Integral) control product as defined in the Building Regulations, which make boilers operate more efficiently and provide close accurate control.
It also incorporates an ‘OFF’ setting that can be used for frost or hypothermia protection, assuming the system time control is also switched on. 'Installer Mode' also allows control to be matched to the system and user requirements, adapting minimum on or off times, set point controls etc.
Two wire, volt free connections are ideal for use with combination boilers or heating zones.
Honeywell DT90E Digital Room Thermostat Features & Benefits:

  • Energy saving TPI control
  • ECO button for energy saving mode
  • Simple user operation
  • 5 to 35°C set point range
  • 'OFF' setting with adjustable OFF setpoint
  • Direct replacement of the DT200 digital thermostat
  • Mains or low voltage switching
  • Two wire connection


CE Approved

Honeywell DT90E Wired Digital Room ThermostatProduct Specification

Manufacturer Part Number DT90E1012
Boxed Weight 0.11kg

Honeywell DT90E Wired Digital Room ThermostatDownloadable Documents

£29.40 (Inc. VAT)

RRP £49.97 Save  41%

30 Available 

Price Guaranteed For

Honeywell DT90E Wired Digital Room ThermostatReviews

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own review

4.8/ 5
16 reviews
5/ 5

I replaced a standard manual controller with this digital one to improve control of our central heating. Excellent! It was a two wire fit and works really well, holding the rooms at a much more stable temp. than previously. One 'weakness' is the switching noise (clicking) which is much more frequent and quite loud as it hunts about the set temp. more - but this is a small price to pay and if in a hall or outer room would not be a problem at all. The eco feature is brilliant - going out for an hour or two, just touch the eco button and it saves fuel!

ID: 100001600
5/ 5

A very good buy just a straight forward change over if you already have the old style Honeywell thermostat works well and displays your room temperature plus a quick service when ordering.

ID: 100022879
5/ 5

Replaced failed mechanical room stats with Honeywell DT90E from PlumbWorld. Arrived on time, in perfect condition. Just installed them a day ago and they all work as intended - just beware that you get the wiring right for your situation, it's not 100% clear so take care to match the wiring you have with the appropriate option in the instructions

ID: 100010107
4/ 5

This is the best price I could find on the internet.They are good if I had say bad thing it is the click it makes it can wake you up

ID: 100023871
5/ 5

Totally pleased with the item for Value and quality.

ID: 100001965
5/ 5

Orderd ON Line and recieved within 3 days. Outstanding performance from the Vendor

ID: 100003031
5/ 5

This digital thermostat replaces a mechanical version. It is so much more precise in maintaining temperature than the previous stat, which was not that old.

A first class product at a good price.

ID: 100002426
4/ 5

Purchased as a replacement for old mechanical 4 wire thermostat. Has now been working for approx 4 months with no problems. I was concerned about other reviews regarding noisy relay but you can hardly hear it. The eco button is very usfull if going out for the day.

ID: 100002920

£29.40 (Inc. VAT)

RRP £49.97 Save  41%

30 Available 

Price Guaranteed For

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