FOSSIL-FIRED CONTINUOUS-FLOW STEAM GENERATOR

The invention relates to a continuous-flow steam generator (2), having a combustion chamber (4) with evaporator tubes (10) for fossil fuel (B). On th e heating gas side, a vertical gas extractor (8) is connected downstream of sa id combustion chamber via a horizontal gas extractor (6). During operation of t he continuous-flow steam generator, the temperature fluctuations between the ex it area (34) of the combustion chamber (4) and the entry area (32) of the horizontal gas extractor (6) should thus be as low as possible. To achieve this, a number of the evaporator tubes (10) from a plurality of evaporator tubes (10) which are impinged upon in parallel by a flow medium (S) are guid ed through the combustion chamber (4) before entering the encompassing wall (9) of said combustion chamber (4).