Code 4.303 Hybrid system with solid fuel and gas-fired boilers <35 kW, inertial tank with built-in cylinder Discover
Code 4.304 Hybrid system with solid fuel and gas-fired boilers, <35 kW domestic hot water production with storage Discover
Code 4.001 Hybrid system with boiler and heat pump, for heating & cooling and instantaneous domestic hot water production Discover
Code 4.002 Hybrid system with boiler and heat pump, heating, cooling and instantaneous domestic hot water Discover
Code 4.003 Hybrid system with boiler and heat pump, heating and domestic hot water production with storage Discover
Code 4.004 Hybrid system with boiler and heat pump, heating, cooling and domestic hot water with storage Discover
Code 4.007 Hybrid system with operation in series, for heating, cooling and instantaneous domestic hot water Discover
