Variheat Mk2 Cast Iron Boiler

Hamworthy PV70c 70kW Purewell Variheat MK2

Units PV70c
Energy
Building regulations – seasonal efficiency (%) gross 95.3
ErP efficiency rating (modules ≤ 70 kW only) A
Boiler output (non-condensing) mean 70°C – max kW 63.5
Boiler output (non-condensing) mean 70°C – min kW 21.2
Boiler output (condensing) mean 40°C – max kW 70
Boiler output (condensing) mean 40°C – min kW 23.3
Gross boiler input – max kW 72.2
Gross boiler input – min kW 24.1
Net boiler input – max kW 65
Net boiler input – min kW 21.7
Water
Water content litres 8
System design flow rate @ 20°C ∆T rise l/s 0.8
Water side pressure loss @ 20°C ∆T rise mbar 32
System design flow rate @ 11°C ∆T rise l/s 1.5
Water side pressure loss @ 11°C ∆T rise mbar 96
Maximum water pressure bar g 6
Gas
Gas flow rate natural gas (G20) – max m3/hr 6.9
Nominal inlet pressure natural gas (G20) – max mbar 20
Maximum gas inlet pressure natural gas (G20) mbar 25
Flue
Flue Gas Flow [email protected] 15°C, 9.5% CO2 m3/hr 86
Approx. flue gas temperature @ 50/30°C °C 40
Approx. flue gas temperature @ 80/60°C °C 60
Pressure at boiler flue spigot @full load Pa 100
Dry NOx emission* mg/kWh 21.3
Connection
Water flow/return connections inches R2”
Gas inlet connection pipe thread size inches R1”
Nominal flue diameter (I/D) mm 150
Electrics
Electrical supply 230 V 1 Ph 50 Hz
Power consumption @ max W 94
IEC power outlet power consumption @ max W 460
Start current and run current Amp 0.54
Approx shipping weight kg 195
Noise emission @1 m and @maximum boiler modulation Max dB (A) 53
CO2 (±0.25%) – max % 9.5
CO2 (±0.25%) – min % 9.5
*0% excess oxygen, dry air free, European Class 6