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rural boiler modification gas boiler method

urban and rural small boiler transformation

patent horizontal biomass boiler. The utility model discloses a kind of biomass boiler fume afterheats to utilize energy saverIncluding biomass boiler and flue gas waste heat recovery apparatusFlue gas waste heat recovery apparatus includes shellGas inletExhanst gas outlet and heat sinkShell includes external thermal insulation from outside to insideVacuum layer and

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