Abstract: A tapping apparatus 1 for beverage 7, provided with a beverage holder 2 and a pressure regulating device 9, the pressure regulating device 9 comprising a first compartment 11 and a second compartment 12, wherein the first compartment 11 contains a first substance 23 and the second compartment 12 a second substance, between the first and the second compartment at least a part of a dosing device 13 is provided and wherein at least one of the first and second compartment is in communication with an inner space 6 of the beverage holder 2. The first and second component can react with each other while forming a gas, in particular C02 gas which dissolves in the beverage 7 and pressurises the beverage holder 2.

Abstract: A domestic combined heat and power assembly comprising a wall mountable frame (13), a Stirling engine module (40) with a Stirling engine (41), and a heat exchanger module (20) for the recovery of heat from the Stirling engine. The Stirling engine module and the heat exchanger module are separate units which are mountable to the frame independently of one another.

Abstract: A heating arrangement for heating a fluid, the arrangement comprising an elongate housing having a main axis. An inner chamber (21) for a first fluid surrounds the axis. A plurality of axially extending fins (22) project into the inner chamber. An exhaust gas inlet which receives exhaust gas, for example, from a Stirling engine, is provided at one end of the inner chamber. A supplementary burner (20) at the opposite end of the chamber is arranged to fire radially outwardly on to the fins. An outer chamber (30) for a second fluid surrounds the inner chamber.

Abstract: A domestic combined heat and power assembly comprising a wall mountable frame (13), a Stirling engine module (40) with a Stirling engine (41), and a heat exchanger module (20) for the recovery of heat from the Stirling engine. The Stirling engine module and the heat exchanger module are separate units which are mountable to the frame independently of one another.

Abstract: A heating arrangement for heating a fluid, the arrangement comprising an elongate housing having a main axis. An inner chamber (21) for a first fluid surrounds the axis. A plurality of axially extending fins (22) project into the inner chamber. An exhaust gas inlet which receives exhaust gas, for example, from a Stirling engine, is provided at one end of the inner chamber. A supplementary burner (20) at the opposite end of the chamber is arranged to fire radially outwardly on to the fins. An outer chamber (30) for a second fluid surrounds the inner chamber.