Digital Modulating Central Heating Boiler 3kW to 18kW (heating only) - Discontinued

Please try Elnur Cental Heating Boilers for alternative products.

Digital Modulating Central Heating Boiler 3kW to 18kW (heating only)8432336804250CM18

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CM range - Heating Only
CMX range - Heating & Domestic Hot Water (DHW)

Height: 760mm
Depth: 265mm
Width: 350mm

Weight: 32kg

An electric boiler can replace any other small to medium size boiler in the home, and are known to be light, small and compact, often completely silent and, of course, boasting the main benefit of a low running cost due to the price of electricity in comparison to oil or gas.

It is most common to need an electric powered boiler in rural areas where oil or gas access may not be available, but also some new housing projects or flats are being fitted with electric boilers by choice due to its environmental and cost benefits.

Free delivery to
Mainland - England, Scotland & Wales

Not stocked at all branches
please allow 1 - 3 days
for delivery or collection
Digital Modulating Central Heating Boiler
3kW to 18kW (Heating Only)
Elnur electric boilers offer you the opportunity to enjoy the safety and convenience of electric energy.

They are the ideal option when a totally safe and efficient central heating system is required in both 3 x 400V+N~ and 230V~.
The boiler is compatible for one or three phases by using the bridge connection included) in the terminal block.

The entire range of Elnur boilers can be used with hot water radiators or with radiant floor heating,
with room or programmable thermostats, and unlike other boilers,
they do not require yearly maintenance or safety inspections.

All the components required for the operation and installation are supplied with the boiler.
Installations do not require venting or gas outlets which may compromise the insulation of your home.

These electronic boilers from Elnur are completely silent thanks to their TRIAC-based technology.
Moreover, they have a modulating operation which, combined with a good exterior programmable thermostat (see accessories),
adapts the heating power to the needs of the system, achieving maximum energy efficiency and a considerable saving in consumption.

The maximum power can be limited to any of the modulation levels.
CM15 and CMX15 this range is from 15kW down to 2kW and
CM18 and CMX18 this range is from 18kW down to 3kW

The different temperature, flow and consumption sensors ensure a safe and reliable operation.
The stainless steel cylinder in the CMX models guarantees a long, corrosion-free life,
reducing the need for maintenance and periodic replacement of anodes.
The keys are easy to clean and highly intuitive when used.

The digital display constantly shows the temperature of the circulating heating water and of the Domestic Hot Water (DHW) tank.
Adjustment of the heating and DHW is made easier by using individual keys to increase or decrease the temperature.
You can disconnect the heating system in summer and both keypads can be locked to prevent any changes.
The electronic control of the circulation pump prevents blockage during long periods of inactivity.
  • Heating boiler made of insulated steel
  • Stainless steel shielded elements INCOLOY800
  • 6L Heating expansion vessel
  • Modulating electronic control of the heater
  • Digital display
  • Hydrometer 0-4bar
  • Circulating pump
  • Auto air vent
  • Silent TRIAC power switches
  • Heating flow detector
  • Heating temperature limiter 100°C
  • Heating pressure relief valve 7 kg/cm2
  • Room thermostat inlet
  • Optional under floor heating kit (hydronics)
  • Powder coated RAL 9010


Range Brochure - 1.7Mb Pdf Instructions - 775kb Pdf
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product photo ER CM18 Digital Modulating Central Heating Boiler 3kW to 18kW (heating only)