The main areas of use of the UT-H hot water boiler are local and district heating generation, all sectors of business, the processing industry, heat suppliers and public facilities. These boilers are also used as base load, peak load and reserve heating boilers at district heating plants. - https://www.bosch-thermotechnology.com/global/en/ocs/commerc...

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Bioheat BFB boiler plant is ideal solution for district heating, process plants, peak load and reserve plants. Bubbling fluidized bed (BFB) combustion can be applied to a wide range of fuels, from dry-wood fuel and peat to high-moisture forest residues, sludge and even solid recovered fuels. - https://www.valmet.com/energyproduction/heating-plants/bfb-b...

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Note added at 5 hrs (2020-06-14 23:21:49 GMT)
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Once completed, the plant will produce hot water for district heating network in Kotka. The plant will serve network as peak-load and reserve heating plant during the winter season. It replaces old oil and natural gas fired thermal energy generation and improves overall heat supply security. - https://www.metso.com/news/2011/9/metsos-heating-plant-deliv...