HR 28

HR 28

First double-HE combi boiler
Unique two-in-one heat exchanger
Fifteen-year warranty on heat exchanger

Energy label AEnergy label A XL

  • 28 kW power
  • CW4
    8 l/min at 60 °C
    13 l/min at 40 °C

HR 28

Our Combi Compact HR 28 provides enough heat to make all  the rooms in your customer’s home cosy and snug. But it also ensures unrivalled quantities of hot water in your kitchen and bathroom. If you want a powerful shower and a bath that fills very fast, then the HR 28 is the perfect option.

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Our customer service staff will gladly answer any of your questions.

You can call one of the team on weekdays between 8.15 a.m. and 4.45 p.m. And if it’s outside office hours, just send us an email. We’ll get back to you as soon as possible.

Tel.: +31 (0)524 517655

Or simply ask us your question using the form below.

Article number 042508
Material heat exchanger Aluminium
Rated power 80-60 °C kW 28,10
Nominal load lower value kW 8,70 - 29,10
Nominal load upper value kW 9,70 - 32,30
Heating power adjustable
Suitable for natural gas
Suitable for propane
Conversion set required
Control signal OpenTherm
Burner control modulating
Maximum flow temperature (working temperature) °C 90
Maximum allowable operating pressure bar 3
Minimum work pressure bar 0,50
Maximum gas pressure mbar 30
Minimal gas pressure mbar 20
Nominal power tap water kW 28,10
Nominal load lower value tap water kW 8,70 - 29,10
Nominal load upper value tap water kW 9,70 - 32,30
Hot water capacity at 60 °C l/min 8
Hot water capacity at 40 °C l/min 13
Tap threshold l/min 1,50
Supply voltage V 230
Built-in pump circuit
Built-in manometer
Built-in weather-dependent controller
Weight kg 38
Height mm 810
Width mm 450
Depth mm 270
Connection return Knel
External tube diameter supply mm 22
Connection supply Knel
External tube diameter return mm 22
Fuel connection Knel
External tube diameter fuel mm 15
Air supply connection Mofeind
Nominal duct diameter air supply mm 80
Connection of flue gas outlet Mofeind
Nominal duct diameter flue gas discharge mm 80
Connection cold tap water Knel
External tube diameter cold tap water mm 15
Domestic hot water connection Knel
External tube diameter hot tap water mm 15
Condensation connection Flexibel
External tube diameter condensation mm 25,40
Capacity profile XL
Efficiency class space heating A
Efficiency class water heating A
Supplementary electricity consumption at full load (ELmax) kW 0,04
Supplementary electricity consumption in standby mode (Psb) kW 0,002
Standby heat loss (Pstby) kW 0,041

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