The ESCTDEB is a dual hot water cylinder thermostat with energy saving and legionella prevention at the heart of its design.

  • Easy to use & quick installation
  • Accurate temperature control
  • Automatic override killing legionella bacteria
  • Clear LCD display
  • Large adjustable dial
  • LCD to signal heat demand
  • Energy saving
  • 3 year warranty

The ESI electronic dual cylinder thermostat is a product developed with energy saving in mind. Hot water can be stored at any desired temperature between 25°C and 65°C and with an automatic one-hour boost to above 60°C any legionella bacteria is eliminated. The backlit LCD display shows the user both the current water temperature and the desired water temperature with a red LED light indicating when heat is in demand. A large dial makes setting the desired temperature simple, whilst the secondary thermostat (high limit) is pre-set at 80°C with a manual reset. Electronic sensors offer far greater temperature accuracy ruling out the need for physical contact unlike standard mechanical dual cylinder thermostats. Easy to install and economical by design, this cylinder thermostat is an ideal replacement.

£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 3 of our total 5 reviews, with an average rating of 5 stars. Read all 5 reviews for Electronic Dual Hot Water Cylinder Thermostat - ESCTDEB.
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Review Summary - 5 out of 5 based on 5 ratings.
February 12, 2024 | Andrew
Electronic Dual Hot Water Cylinder Thermostat - ESCTDEB

Excellent product providing accurate temperature control and display of the current temperature at a very reasonable price. Easy to fit as a replacement for a traditional mechanical thermostat so long as a permanent live supply is available nearby.

May 20, 2023 | SIU-WAI YEUNG
Electronic Dual Hot Water Cylinder Thermostat - ESCTDEB

Good quality as description, fast delivery, reliable seller.

April 29, 2023 | Joshua cole
Electronic Dual Hot Water Cylinder Thermostat - ESCTDEB

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ESI Controls Electronic Dual Hot Water Cylinder Thermostat - ESCTDEB

  • $29.23
  • (Delivery from $6.85 )
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.
Want it by Monday 12th October? Order within 6 hours, 45 minutes