The paper overviews the contemporary state of Russia's heat supply systems and fuel consumption within its centralized part, the structure of heat consumption by economic sectors and types of industrial con sumers. As shown, the centralized heat supply systems, providing the major part of country's economy with low temperature heat, have heat losses and accident rate at a critical level. The state of decentralized heat sup ply systems of low rise buildings is not covered by national statistics at all. A second paper on the prospects and development of Russia's heat supply systems will be published in a subsequent issue.

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