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ESI ES1247

£31.78 £29.47
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The ES 1-24/7 one channel programmer can be used where both heating and hot water services are required to switch ON/OFF at the same time. Ideal for controlling the heating in a system using a Combination Boiler or for standard systems where the plumbing requires both heating and hot water to be controlled simultaneously
Can also be used for additional heating zones in retrofit where a two or three channel programmer is already installed, or when additional hot water is required.
Large display with a Boost and an Advance facility and automatic adjustment for British summer time.
  • 6 Amp total rating
  • 7 Day, 5/2 Day or 24 Hour programming
  • Advance to next programmed event
  • Automatic BST/GMT time change
  • Boost features on all channels: 1, 2 or 3 hours
  • Built-in programmes
  • Each channel up to 3 programmes per day
  • Factory set time & date
  • Industry standard backplate
  • Large backlit display
  • Lithium battery Reserve
  • Permanent backlit display
  • Program options: ON OFF all day or auto
  • Pumped or gravity systems selectable 

ESI ES2247

£39.68 £34.96
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The ES 2-24/7 two channel programmer has two fully independent time control channels, usually Hot Water and individual heating zones.
The ES 2-24/7 programmer during installation can be configured by the installer to provide 7 day, 24 hour, or 5 day/2 day operation and to provide either 2 ON/OFF's or 3 ON/OFF's per day, allowing the time control to be tailored to match the specific requirement of the consumer.
Perfect with fully pumped Central Heating Systems, and an option for Gravity-fed systems using a 3 port mid-position motorised zone valve, or 2 x 2-port motorised zone valves.  .
Large display with a Boost and an Advance facility and automatic adjustment for British summer time.
Contemporary and stylish design to coordinate with modern and traditional home designs.
  • 6A total rating
  • 24 hour, 5/2 day and 7 day programming
  • Advance to next programming event
  • Automatic BST/GMT time change
  • Boost features on all channels: 1, 2 or 3 hours
  • Built in programmes
  • Each channel up to 3 programmes per day
  • Factory set time and date
  • Industry standard back plate
  • Large backlit display
  • Lithium battery Reserve
  • Permanent back lit display
  • Program options – ON, OFF, All day or Auto
  • Pumped or gravity systems selectable

ESI ES3247

£57.98 £51.94
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Our top of the range, ES 3-24/7 three channel programmer has three fully independent time control channels, usually Hot Water and two individual heating zones.
The ES 3-24/7 programmer during installation can be configured by the installer to provide 7 day, 24 hour, or 5 day/2 day operation and to provide either 2 ON/OFF's or 3 ON/OFF's per day, allowing the time control to be tailored to match the specific requirement of the consumer.
Perfect with fully pumped Central Heating Systems, using 3 motorised zone valves, can also be used on ‘gravity’ fed systems.
Large display with a Boost and an Advance facility and automatic adjustment for British summer time.
  • 6 Amp total rating
  • 7 day, 5/2 day or 24 hour programming 
  • Advance to next programming event
  • Automatic BST/GMT time change
  • Boost features on all channels; 1, 2 or 3 hours
  • Built-in programmes
  • Each channel up to 3 programmes per day
  • Factory set time & date
  • Industry standard wall plate
  • Large backlit display
  • Lithium battery Reserve
  • Permanent backlit display 
  • Program options – ON, OFF, All day or Auto
  • Pumped or gravity systems selectable
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TUE   - 07.30 - 17.00
WED - 07.30 - 17.00
THU - 07.30 - 17.00
FRI - 07.30 - 17.00
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SUN - CLOSED

Based in Weston-super-Mare in Somerset, we are able to provide wholesale electrical items throughout the south west from our electrical counter, and across the UK with purchases online. With free delivery when you spend £50 or more, we hope to be your main online source for all of your required electrical products.


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O.E.S. Electrical Supplies Limited Unit C4A Oldmixon Crescent Weston-super-mare Somerset BS24 9AY