Specifications Table for R2TND-A4A

R2TND012A4AB R2TND018A4AB R2TND024A4AB R2TND028A4AB R2TND035A4AB R2TND012A4AA (Archived) R2TND018A4AA (Archived) R2TND024A4AA (Archived) R2TND028A4AA (Archived) R2TND035A4AA (Archived)
Gas NOx class   6 6 6 6 6 6 6 6 6 6
  NOx level (G20) mg/kWh 10 18 22 36 35.5 10 18 22 36.3 35.5
Central heating Heat input Qn (net calorific value) Nom Min kW 2.9 2.9 2.9 4.8 4.8 2.9 2.9 2.9 4.8 4.8
      Max kW 11.1 16.9 23.5 27 34 11.2 17.0 23.5 27 34
  Heat input Qn (gross calorific value) Nom Min kW 3.2 3.2 3.2 5.3 5.3 3.2 3.2 3.2 5.3 5.3
      Max kW 12.3 18.8 26.1 30 37.8 12.4 18.9 26.1 30 37.8
  Efficiency Net calorific value % 98.6 98.18 97.9     98.6 98.2 97.9    
    Gross calorific value % 87.8 87.4 87.3     87.8 87.4 87.3    
Domestic hot water Heat input (net calorific value) Qnw Nom Min kW 2.9 2.9 2.9 4.8 4.8 2.9 2.9 2.9 4.8 4.8
      Max kW 11.1 16.9 23.5 29.5 34 11.2 17.0 23.5 29.5 34
  Heat input (gross calorific value) Qnw Nom Min kW 3.2 3.2 3.2 5.3 5.3 3.2 3.2 3.2 5.3 5.3
      Max kW 12.3 18.1 26.1 32.7 37.7 12.4 18.1 26.1 32.7 37.7
Space heating General Seasonal space heating eff. class   A A A A A A A A A A
Heat losses Stand-by boiler Ps kW 0.057 0.057 0.057 0.065 0.065 0.057 0.057 0.057 0.0650 0.0650
Supply air Concentric   Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Flue gas Mass flow (G20) Max kg/h 38.7 38.7 38.7 55.7 55.7 38.7 38.7 38.7 44.5 55.7
  Mass flow (G25) Max kg/h       39.3 49.6       39.3 49.6
  Mass flow (G31) Max kg/h 36 36 36 43.3 54.7 36.0 36.0 36.0 43.3 54.7
Casing Colour   Titanium White (Ral9003) Titanium White (Ral9003) Titanium White (Ral9003) Titanium White (Ral9003) Titanium White (Ral9003) Titanium White (Ral9003) Titanium White (Ral9003) Titanium White (Ral9003) Titanium White (Ral9003) Titanium White (Ral9003)
  Material   Sheet metal Sheet metal Sheet metal Powder painted galvanised steel plate Powder painted galvanised steel plate Sheet metal Sheet metal Sheet metal Powder painted galvanised steel plate Powder painted galvanised steel plate
Dimensions Unit Height Casing Mm 590 590 590 690 690 590 590 590 690 690