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Oxyfuel furnaces are usually designed as cross fired melting furnaces where the fuel used (mostly natural gas) is combusted together with oxygen. The greatest advantage is in the low energy consumption, since little nitrogen is used for combustion. Compared with a cross fired or end fired furnace the energy consumption of an oxyfuel furnace is reduced by approx. 5 – 10 %, compared with a recuperative furnace the reduction in energy consumption is even 25 – 40 %.

Due to its high flexibility and its low energy consumption the regenerative end fired furnace is the working horse of the glass industry. Most mass produced glass products such as bottles and containers of all kind, tableware and glass fibre can be produced with a minimum of fossil fuel firing and thus carbon dioxide emission.

In generally， all electric furnaces with a cold top are used typically for a production range of 5 – 80 t/d. It is possible to increase melting capacity up to 200 t/d. More capacity is possible with sufficient developing time. For this furnace type energy is not supplied by means of fossil fuels, but exclusively by means of electric energy supplied by molybdenum electrodes.

In comparison to other furnaces the cross fired furnaces can be designed in larger overall dimensions due to the larger firing zone because of the lateral burner arrangement. The only limitation is the furnace width due to crown span length.