Specifications

Double Pass Specifications

Boilers marked green are RHI compliant

D2 D4 D6 D8 D12 D10 D15 D20 D30 D40 D50
Output (kW) 30 41 50 75 113 99 150 195 370 270 450
Furnace Diameter (mm) 840 840 1140 1140 1140 1476 1476 1780 1780 1930 1930
Furnace Length (mm) 1450 1950 1450 1950 2950 1950 2950 1950 2950 1950 2950
Boiler Plate Thickness (mm) 6 6 8 8 8 10 10 10 10 10 10
Overall width (mm) 1140 1140 1440 1440 1440 1720 1720 2100 2100 2230 2230
Overall length inc fluebox (mm) 2550 3005 2550 2850 3750 3005 400 3005 4005 3005 4005
Height exc legs (mm) 1540 1540 1840 1840 1840 2310 2310 2500 2500 2700 2700
Weight exc water (kg) 900 1200 1700 2500 2900 3000 3500 5500 7000 6500 7500
Flow and return connections (BSP) 2″ 2″ 2″ 2″ 2″ 3″ 3″ 3″ 3″ 3″ 3″

Single Pass Specifications​

B2 B4 B6 B8 B12 B20 B30 B40 B50
Output (Kw) 25 34 46 62 94 154 312 187 380
Typical number of radiators 8 9 10 14 15 20 20 20 20
Furnace Diameter (mm) 840 840 1140 1140 1140 1780 1780 1930 1930
Furnace Length (mm) 1450 1950 1450 1950 2950 1950 2950 1950 2950
Boiler Plate Thickness (mm) 6 6 8 8 8 10 10 10 10
Overall width (mm) 1140 1140 1440 1440 1440 2100 2100 2230 2230
Overall length inc fluebox (mm) 1850 2350 1850 2350 3350 2350 3350 2350 3350
Height excl legs (mm) 1140 1140 1440 1440 1440 2100 2100 2230 2230
Weight (kg) 800 1000 1200 1800 2500 4100 4700 4300 5300
Water capacity (litres) 245 310 400 520 750 710 1000 780 1100
Flow and return connections (BSP) 2″ 2″ 2″ 2″ 2″ 3″ 3″ 3″ 3″