Heating system with a gas fired radiant heater (20) and a primary heat exchanger (7) which is in thermal contact with the gas fired radiant heater (20). Furthermore, a fluid based radiant heater (21) is present, and the primary heat exchanger (7) is comprised in a fluid circuit of the fluid based radiant heater (21). An extension set is furthermore provided for a gas fired radiant heater (20) with a fluid based radiant heater (21) and a primary heat exchanger (7) which is comprised in a fluid circuit of the fluid based radiant heater (21), which extension set is thermally connectable with the at least one gas fired radiant heater (20).

Es wird ein gasbeheiztes Wärmezentrum geschaffen, bei dem in einem quaderförmigen Gehäuse, dessen Abmessungen üblichen Norm-Einbauelementen (60x60x85cm) entsprechen, in Über­einanderanordnung ein Heizteil, ein Bratrohr (13) und ein Koch­teil (11) untergebracht sind, wobei sich an der Gehäuserückwand ein vom Heizteil bis unter das Kochteil hochgeführter Abgasschacht (20) befindet. Das Heizteil besteht aus einem Strahlungsbrennerregister (16) und einem Heizungs-Wärmetauscher (17) in Form einer unmittelbar über dem Strahlungsbrennerregister angeordneten, horizontalen Tauscherplatte.

Disclosed is a cooking apparatus for providing a cooking vessel suitable for a simmer cooking function. A cooking apparatus of the present invention includes a cooking room; a cooking vessel accommodated in the cooking room, and including a main body, and a heating element attached on a bottom of the main body and configured to be heated by microwaves to heat the main body; a microwave heater configured to radiate microwaves to the cooking vessel; an input device configured to receive a simmer cooking command; and a controller configured to repeatedly perform a process of turning on the microwave heater for a first time period, when the simmer cooking command is received through the input device, and turning off the microwave heater for a second time period when the first time period elapses, for a cooking time period, and configured to perform a keeping-warm process when a door does not open in a third time period after the cooking time period elapses.

Cooking stove (F, F') with heat recovery system (10, 10'), having at least one heating means (F1, F1') consisting of a gas burner, a radiant electric plate or an inductive electric plate for cooking food, comprising, according to the invention, heat collector means (16, S, 16', S') arranged around and, at least in part, underneath said at least one heating means (F1, F1') of said stove (F, F'), and which comprise at least one coil means (S, S') having a thermal fluid-tight inlet (16.1, 16.1') and outlet (16.2, 16.2'), with the inlet hydraulically connected in a fluid-tight manner to first hydraulic circuit means (17, 17.1, 17', 17.1') and with the outlet connected to second hydraulic circuit means (18, 18.1, 18', 18.1'), which are hydraulically connected with respect to at least one thermal fluid storage container (11, 11', 11"), which is in turn hydraulically connected, on one side, with respect to a duct (12, 12') for the inflow of fluid coming from a fluid distribution network and, on the other side, with respect to a first duct (13, 13') for the outflow of fluid, hydraulically branched towards a fluid consumer (U, U'), through solenoid valve means (V13, V13', 20.1', 20.1") for controlling the flow of fluid delivered from said at least one container (11, 11', 11").

Heating system with a gas fired radiant heater (20) and a primary heat exchanger (7) which is in thermal contact with the gas fired radiant heater (20). Furthermore, a fluid based radiant heater (21) is present, and the primary heat exchanger (7) is comprised in a fluid circuit of the fluid based radiant heater (21). An extension set is furthermore provided for a gas fired radiant heater (20) with a fluid based radiant heater (21) and a primary heat exchanger (7) which is comprised in a fluid circuit of the fluid based radiant heater (21), which extension set is thermally connectable with the at least one gas fired radiant heater (20).

A heat recovery system 100 from a pizza oven or the like F, comprising:

- an open-pit chamber 10, containing said pizza oven or the like F, constituted by a structural unit not communicating with said chamber 10, with opening A passing through a wall of said chamber 10;

- a storage tank for domestic hot water or the like 11, connected in a hydraulic circuit with respect to at least one hot water user R;



in which:

- first hydraulic serpentine coil means 12, placed above said oven F, in said chamber 10, and hydraulically connected with respect to second hydraulic serpentine coil means 13, arranged in said storage tank 11, in direct or indirect contact with the domestic hot water contained therein, said first 12 and said second 13 hydraulic serpentine coil means forming a closed loop hydraulic circuit C;

- a heat storage fluid, circulating in said first 12 and in said second 13 hydraulic serpentine coil means, and

- hydraulic pump means 14 for forced recirculation of said heat storage fluid in said closed loop hydraulic circuit C.

Device for the recovery of thermal energy applicable to a gas cooker, suitable for bounding the perimeter of the area where the heat source (flame or electric hot plate) is present so as to identify a combustion chamber consisting, in its upper part, of the container to be heated lying upon said device.