• Boiler Plus compliant
  • Pre-paired
  • Opentherm
  • Voice control with Alexa
  • Ability to control up to 6 zones with additional thermostats
  • Hot water control available with additional thermostat
  • Cost effective
  • 5 Year warranty

User friendly WiFi enabled digital RF programmable room thermostat and receiver suitable for controlling one or multiple heating zones (with additional thermostats). This programmable thermostat gives you all functionality of the COMBIPACK 4 but with the addition of being able to control your system through your smart device using the EMBER app.

£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 4 reviews, with an average rating of 5 stars. Read all 4 reviews for WiFi Programmable RF Smart Thermostat & Gateway - CP4i.
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Review Summary - 5 out of 5 based on 4 ratings.
November 20, 2024 | james p cross
WiFi Programmable RF Smart Thermostat & Gateway - CP4i

Great price and excellent delivery.

October 18, 2024 | Dave Powell
WiFi Programmable RF Smart Thermostat & Gateway - CP4i

Really good value for decent piece of kit

January 16, 2024 | irnk
WiFi Programmable RF Smart Thermostat & Gateway - CP4i

Maintains constant temperature much better than many big name rivals. This should be foremost in any smart thermostat. While many offer great smart functions they fall short on maintaining a constant temperature and therefore comfort without wasting energy in overheating or leaving you cold. EPH Cp4i strikes a comfortable balance of accuracy and smart controls while being easy to set up and operate

EPH Controls WiFi Programmable RF Smart Thermostat & Gateway - CP4i

  • $183.08
  • (FREE UK Delivery)
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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