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CEX Water Heater, CEX-O

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Zip CEX Water Heater

Availability: In stock

Delivery Time:   Next Working Day

Warranty:   1 Year

Quick Code:   12222

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Ex. VAT: £263.03 Inc. VAT: £315.64


Zip InLine CEX-O and CEX-U instantaneous water heaters are micro-processor controlled, pressure resistant water heaters suitable for supplying hot water for between 1 and 3 units,  we recommend that it is used with no more than 2 outlets.

For use with a kitchen sink we recommend this is used as a single outlet.

The heating element switches on automatically when the hot water tap is opened and switches off automatically when the hot water tap is closed.

The electronic control system automatically regulates the power consumption depending on the supply water temperature and flow rate to achieve the required outlet temperature within the power limit of the appliance.

Power consumption is also regulated based on outlet temperature to ensure the required temperature is achieved exactly to the degree and irrespective of fluctuations in voltage and water pressure.

The power rating of the appliance can be selected as either 8.8kW or 6.6kW at 230V at the time of installation.

The required outlet temperature can be entered on a keypad within the range 30°C to 55°C and can be read off the digital display.

The maximum inlet temperature of 70°C is suitable for use with preheated water e.g. from solar heating systems.

Product Code CEX-O CEX-U
Application Over-sink Under-sink
Nominal supply voltage 1/N/PE 230V~
Power Rating (kW) 6.6 / 8.8
Rated Current (A) 29 (6.6kW) / 38 (8.8kW)
Element type Bare wire
Rated pressure 1 MPa (10 bar)
Temperature adjustment range 30ºC - 55ºC
Maximum inlet temperature 70ºC
Factory set flow rate at 3 bar (l/min) 4.2
Minimum flow rate (l/min) 2.0
Maximum flow rate (l/min) 5.0
Flow rate @ 38ºC (l/min) 3.6 (6.6kW) / 4.8 (8.8kW)
Flow rate @ 50ºC (l/min) 2.5 (6.6kW) / 3.3 (8.8kW)
Pressure loss @ 2.5 l/min 0.2 bar
                     @ 9.0 l/min
0.2 bar
1.3 bar
Required specific water resistance @ 15o C >1100 ohm.cm
Dimensions H x W x D (mm) 294 x 177 x 108
Maximum weight (kg) 2.7
Rated volume (litres) 0.3
Water connections (BSP) 1/2”
Protection class IP25 IP24

All data quoted at nominal supply voltage

A minimum water pressure of 0.2 MPa (2 bar) is recommended for optimum performance.

Maximum flow rate will be achieved at a water pressure of 0.6 MPa (6 bar).

The appliance must not be subject to more than 1 MPa (10 bar).


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Q. When will I receive my delivery?
A. The majority of items from CGS Stores web sites are delivered Next working day if ordered before 12.00Pm. If something is time critical please call or email to check. You can also check in the description some items are delivered direct from the manufacturer or made to order and can take a longer.

Q. What warranty do I get with this item?
A. All products we sell come with at least 1 years warranty. Some can be as long as 10 years please check description.

Q. What size is it?
A. We have a technical tab please click on that it will give you dimensions, weight and more technical information


At CGS Stores our aim is to offer first class service and products at competitive prices.

We check our prices constantly to ensure we are unbeaten, however if you do manage to find it cheaper elsewhere we will price match. Please contact us.

Price Match Terms & Conditions

-       The competitor’s item must be identical (colour, size, output etc.) and offered on same terms

-       The competitor’s item must be in stock at the time of match

-       The price matched is the total including VAT and delivery

-       UK competitor’s only

-       The competitors price must be advertised online and cannot include any discount

-       Excludes items from auction sites such as eBay and Amazon


Here at CGS Stores we offer a 14 day return policy.
You may cancel your order prior to dispatch or within 14 days of delivery. Notification of cancellation must be in writing, you can do this here. You cannot cancel your order via telephone. (This is in accordance with the Distance Selling Regulations 2000).

If you choose to cancel your order you are responsible for the cost of returning the goods back to us, unless we have delivered the goods to you in error. All items must be returned undamaged, in their original packaging and in a re-saleable condition. We ask that the goods are returned within 14 days of your return request. If you fail to return the goods, we reserve the right to charge for the cost of collection and you are legally obliged to make them freely available for collection. Returned goods may also incur a re-stocking fee depending on the item.

Once we receive the goods back they will be inspected, if they are in an acceptable condition we will process your refund. Your refund will be done promptly and certainly within 30 days. Your refund will be done according to your method of payment.

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