~ gas room heater for external wall Paper formats change of cross-section Technical)( (stating nominal diameter) connection (stating connection appliance capacity volume flow capacity) (kW) (m 3/h) drawings rn'ln Layout of gas water 8.8-28.1 1.14-3.62 drawings gas pipe house entry heater Construction gas heating boiler circulating 9.5-28.4 1.23
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