The ESRTP4+ is a simple to install 7 day, 5/2 day or 24 hour wired programmable room thermostat. It can be used to control a central heating circuit in a central heating system and is also well suited for controlling combi boiler installations or when adding additional zones to a heating system. The battery powered unit can provide up to 6 on/off periods per day and has many energy saving features including TPI technology and optimum start and delayed stop functions. Time and date are factory set reducing installation set up times and the unit is simple to function with its large backlit LCD screen.

Product Details:

  • Boiler plus compliant
  • Large, easy to read LCD with back light
  • Optimum stop, delayed & optimum start/TPI technology
  • 7 day, 5/2 day or 24 hour programming options
  • 4 or 6 time & temperature events
  • Automatic BST/GMT 1 hour time change
  • Factory set clock & date
  • Pre-set built in programme with overrides
  • Optional landlord service safety feature
  • Holiday mode
  • 3 Year Warranty

Additional information:

  • Not compatible or for use with a receiver

£4.99 Standard Delivery, or FREE on most orders over £99* (some exclusions apply)

£9.99 Next day delivery is available for orders places before 12 noon. Any orders placed for next day delivery after this time, will take 2 working days to be delivered.

Working/delivery days are Monday to Friday, deliveries will not normally be made Saturday or Sunday.

We offer a 30-day returns policy on on the majority of our items*, as long as the item is unused, undamaged and unopened**. We only ask that the postage is covered by yourself. 


* Please see our delivery page for further details on specific exceptions.

** Some products that are made to order or personalised cannot be returned.

***Exclusions apply for items shipped directly from our suppliers, and some big & bulky items may incur an additional charge. Please see our delivery page for full details. 

Showing our 3 Wired Programmable Room Thermostat - ESRTP4+ reviews with an average rating of Excellent. Would you like to write a review?
Review Summary - 5 out of 5 based on 3 ratings.
January 27, 2025 | Khizar Hussain
Wired Programmable Room Thermostat - ESRTP4+

I had this thermostat before for over 10 years and needed a replacement so far so good

January 22, 2024 | Mark
Wired Programmable Room Thermostat - ESRTP4+

v good thanks

June 12, 2022 | John
Wired Programmable Room Thermostat - ESRTP4+

Bought as a replacement for a Honeywell one that's playing up!
hope it does the trick?

ESI Controls Wired Programmable Room Thermostat - ESRTP4+

  • £30.54
  • (Delivery from £4.99 )
Item in Stock   |   Usually dispatched within 24 hours
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Free UK Delivery on most orders over £99
Delivery Rates & Information

Delivery Options

Standard Delivery: £4.99 - Free for all orders over £99.*
Next Day Delivery: £9.99 - Available for orders placed before 12:00 PM (Noon).

Important Delivery Notes

Next Day Delivery Cut-off: Orders placed after 12:00 PM (Noon) using Next Day Delivery will be delivered within two working days.
Working Days: Our standard delivery and shipping days are Monday through Friday. We do not normally deliver on Saturdays or Sundays.

Easy 30-Day Returns

We want you to be happy with your purchase! We offer a 30-day returns policy on all items, provided the following conditions are met:
  • The item is unused and undamaged.
  • The item is returned in its original packaging.
  • The customer is responsible for the return postage costs.

Combining Your Order

We always strive to combine your order into a single delivery. However, your order may arrive in multiple shipments if it contains:
  • Items from different warehouses (Standard items).
  • 'Direct' items (These are shipped separately and directly from the supplier) and will arrive separately from other items in your order.

*Exclusions & Additional Charges

The following items may be excluded from standard shipping rates or may incur extra delivery charges:
  • Items Shipped Directly from Suppliers ('Direct' items).
  • Certain Large or Bulky Items.
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