Gas boiler HEATMASTER 25 C

combiresidentialindoor

Gas fired condensing combined boiler and high output water heater Floor standing boiler with large primary water volume, adaptable to all types of existing installation Responds to high peak demand and high continuous flow Exceptional domestic hot water flow: >35L/min NOx rating (EN483) 22.8/kWh Seasonal Efficiency 96.8% Stainless steel Tank-in-Tank DHW cylinder with proven long life reliability Anti Legionellae: hot water stored at consistently high temperature Stainless steel self-cleaning heat exchanger High efficiency boiler charging pump Concentric balanced flue or conventional flue options. Can also be used as a stand alone water heater. Constructive characteristics Capacity (total) - 200 - L Capacity (primary) - 120 - L Capacity (domestic hot water) - 80 - L Capacity expansion tank(s) - - - L Chimney: Max pressure drop in flue pipe - 130 - Pa Chimney: max length of concentric flue pipe - 20 - m Chimney connection - 80/125 - Ømm Connection - heating - 1 F - Ø" Connection - DHW - 1 M - Ø" Connection gas - 3/4 M - Ø" Connection - safety valve - 1/2 M - Ø" Max operating temperature - 87 - °C Water pressure drop boiler at Δt = 20°C - 3 - mbar Max service pressure heating (primary) - 3 - bar Max service pressure (DHW) - 8,6 - bar Height when tilted - 1855 - mm Weight (empty) - 174 - kg Heating characteristics Pre-heating time from 10 to 80°C (Heat source: boiler) - 27 - min Heating time from 10 to 90°C - 40 - min Combustion Input max (heating) HCV - 27,8 - kW Input max (heating) LCV - 25 - kW Combustion efficiency - 97,5 - % Efficiency at 30% load (EN677) - 109,0 - % Efficiency (max output) 80/60°C - 98 - % Efficiency (min output) 80/60°C - 98 - % Efficiency DHW mode ΔT 30K - 99,2 - %