Ecocondens Slim


New ECOCONDENS SLIM gas condensing boiler is a technically advanced, reliable and efficient device. Wide modulation range makes it a perfect solution for houses and flats with small areas and low heat demand, while ensuring a high level of sanitary comfort (L class). Compact dimensions of the boiler (depth of only 250 mm!) predispose it to be installed e. g. into cabinets, which allows to optimize available space.

CALL: 01282 772 570

Boiler Overview

  • energy class: A
  • Easily convertible from COMBI to LPG by simple settings change
  • heat exchanger made of stainless steel
  • wide range of modulation: from 13% to 100%
  • high efficiency circulation pump
  • stepless speed regulation fan (controlled electronically)
  • cylinder burner made of stainless steel – low level of NOx emission (6th class)
  • domestic hot water cylinder by 3-way valve (refers to system boilers)
  • complete protection system
  • optimization of boiler operation is possible due to application of:
    • outdoor temperature sensor
    • temperature regulator: ON/OFF, Open-Therm or 0-10V,
    • ROUND system for remote boiler control via smartphone,
    • EVOHOME system for remote control of up to 11 heating zones
    • ready-to-use multi-zone modules for controlling up to 3 SIM heating systems
  • boilers can also cooperate with:
    • heat pumps air/water
    • solar panels


Thermal power (at temp. 80/60°C)2,7 – 20,0 kW
Thermal power (at temp. 50/30°C)3,0 – 22,0 kW
Heat load2,8 – 20,4 kW
Seasonal space heating energy efficiency ηs94 %
Efficiency of the boiler at nominal load and average
boiler water temperature of 70°C
97,6 %
Efficiency of the boiler at partial load
and return water temperature of 30°C
107,9 %
Seasonal space heating energy efficiency classA
Useful heat output at rated thermal power P4 (for modulated
boilers – arithmetic mean of min and max)
20,0 kW
Useful heat output at 30% of rated power P1 (for modulated
boilers – 30% of arithmetic mean)
6,0 kW
Efficiency η488,0 %
Efficiency η197,0 %
Max water pressure3 bar
Max CH temperature95 °C
Standard adjustable temperature20 – 80 °C
Pump head at 0 flow0,6 bar
Nominal boiler thermal power (at temperature 80/60°C)2,7 – 25,0 kW
Nominal heat load2,8 – 25,6 kW
Efficiency of the boiler at nominal load and average boiler water temperature of 70°C97,6 %
Water pressure0,1 – 6,0 bar
Minimal water flow2,0 dm³/min
Domestic water flow at Δt=30K12,0 dm³/min
Energy efficiency class of water heatingA
Load profileL
Range of water temperature regulation30 – 60 °C
Sound power level LWA48 dB
Emission of nitrogen dioxide21 mg/kWh
Emission class of nitrogen dioxide (NOx)6
Expansion vessel capacity6 dm³
Standby mode power consumption PSB0,005 kW
Electricity consumption at full load elmax0,05 kW
Electricity consumption at partial load elmax0,02 kW
Type and supply voltage~ 230 ±10%/ 50Hz V
Protection degreeIPX4D
Heating water and gas connectionG 3/4 inch
Dimensions777 x 400 x 250 mm
Weight32,5 kg
Domestic water connectionG 1/2 inch
Heat exchanger materialstainless steel

The mobile App Comfort Version and the mobile app Service Version diagram show just how easy it is for you to connect to and control your boiler and heating system, monitor the operation of the boiler against the service parameters and diagnose any error codes.

Get it Now!

Your Ecocondens Slim boiler is just a couple of clicks away!