In addition, the gas cell includes a gas inlet and a gas outlet.

The gas sensor is arranged in a housing, which is connected to the space via a gas-feeding means.

The mixing tube (9) has a gas nozzle (11) with a gas inlet (12) and an air inlet (17) on the end opposite the radiator housing (1).

An additional gas supply is arranged such that gases can be introduced directly into the plasma jet.

Domestic natural gas is connected to the gas inlet pipeline (16).

The cavity (13) has a gas inlet (7) and a gas outlet (21).

The housing (13) is connected in a gas-tight manner to the outlet-side connection piece (10) or to the meter housing (2) in the region of the gas outlet (11).

The body (12) comprises a gas inlet (14) and at least one depositor (16).

The module is equipped with a device comprising a gas supply (17) for removing dust (15, 115).

Preferred embodiments selectively employ a dual-acting valve (28) to control the flow of gas or suction which valve (28) is capable of simultaneously varying flow from a source and the venting of that flow to atmosphere.

Vibrations of the sensor plate are indicative of the impedance of the borehole plate that may be associated with gas influx.

Said oxygenator comprises a fibre bundle, said fibres being respectively connected by a first connection to a gas supply and by a second connection to a gas outlet.

This system automatically cuts off your gas supply when you start your motorhome.

A gaseous fuel burner has a gas supply (21) feeding a burner head (10) mounted in a refractory block or tile (12) via a venturi (16).

A gas inlet (10) in the opposite side of the body (2) is connected by a passageway (11) to the agitator chamber (7).