DemirDöküm Atromix

Condensing Wall Hung Boiler

  • 4 star efficiency with %109 condensing performance
  • Maximum heating & warm water comfort
  • Low natural gas consumption
  • Award winning design

Superior Features

108% Efficiency

Nitromix wall hung boilers operate extremely economically with 108% efficiency value. High energy saving provided with high efficiency feature of Nitromix wall hung boiler both protects the consumers and nature.

4-Star Efficiency Class

In 4-star efficiency class according to 92/42/EEC standards imposing high efficiency obligation during minimum and maximum operation.

Stainless Steel Premix Heat Exchanger System

Long lasting stainless steel premix heat exchanger provides high fuel saving and efficiency.

Smart Heating System

Smart heating system provides flame modulation with trafficking NTC sensors according to instant capacity need of the environment. Thus, high efficiency and fuel saving are provided.

Digital Screen and Control Panel

Installation and service water temperature values, water pressure value in installation, and error codes can be monitored thanks to digital screen.

OPF Production Technology

A single operator tracks each wall hung boiler produced along the production line. Close tracking of the products enables raising quality to a maximum level.



P 24P 28P 35
General Properties
Device Type5,8CondensingCondensing
Chimney Type22,4HermeticHermetic
Analog ManometerNoNoNo
Fuel Type Tracking on LCDNoNoNo
EMC FilterYesYesYes
Capacity kW242835
Heat Exchanger TypeDoubleDoubleDouble
Efficiency %108109107
Efficiency Class (92/42/EEC)4 Stars4 Stars4 Stars
Smart Heating SystemYesYesYes
Fan ModulationYesYesYes
Self Adaptation SystemNoNoNo
Adjustable Heating CapacityNoNoNo
Flame ModulationYesYesYes
Program TimerNoNoNo
Microfast Hot Water UnitNoNoNo
NTC Sensor StructureDoubleDoubleDouble
Economy/Comfort ModuNoNoNo
Freezing SafetyYesYesYes
Pump Blocking SafetyYesYesYes
Button TypeThumb TurnThumb TurnThumb Turn
Availability for Floor HeatingAvailableAvailableAvailable
Capacity Usage Tracking on LCDYesYesYes
Minimum Nominal Thermal Power kW687
Maximum Nominal Thermal Power kW222735
Minimum Nominal Thermal Power kcal/h4.9856.8805.762
Maximum Nominal Thermal Power kcal/h19.28523.22030.100
Efficiency %
Height mm740740740
Width mm425425425
Depth mm310340340
Net Weight kg32,33435,5
Electrical Properties
Electric feed230 V / 50 Hz230 V / 50 Hz230 V / 50 Hz
Electrical Protection ClassIPX4DIPX4DIPX4D
Maximum Electrical Power WMay.00May.00May.00
Heating Features
Installation temperature adjustment range °C10-7510-7510-75
Expansion tank capacity lt778
Maximum installation capacity(at 75°C average water temperature) lt140140160
Maximum operation pressure bar333
Service Water Circuit Properties
Temperature adjustment range °C38-6038-6038-60
Minimum water flow rate lt/dk1,51,51,5
Specific water flow rate (at 30 °C temperature difference) lt/dk1112,515
Minimum water pressure bar0,80,80,8
Maximum water pressure bar888
Waste Gas Properties
Waste gas output diameter mm60-10060-10060-100
Chimney pipe length provided with the device cm757575