The ES1247B is a single channel electronic timeswitch for central heating. Simple installation and reliability giving you complete control of your heating helping lower costs.

  • 24 hour, 5/2 day or 7 day operation
  • 2 or 3 on/offs per day
  • Automatic BST/GMT time change
  • Factory set clock & date
  • Simple overrides
  • Fits industry standard backplate
  • Easy to use & quick installation
  • 3 year warranty

The ES1247B is a single channel timeswitch with multiple uses. Designed for timed control of a single central heating zone or hot water, the control is also ideal for use with a combination boiler. It can be used in conjunction with an existing programmer to control an additional heating zone or for additional hot water cylinder control. Simple to use, a slider allows you to select your fixed setting whilst simple touch buttons allow you to change variable settings such as time periods and days. It can be adjusted to operate over a 24 hour, 5/2 day or 7 day schedule with a choice of 2 or 3 time periods per day giving you flexibility and efficiency when controlling your heating or hot water.

£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. 

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ESI Controls Single Channel Programmer Timeswitch - ES1247B

  • £33.94 inc. VAT
  • (Delivery from £4.99 inc. VAT )
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 13 hours, 3 minutes