22 35 00 Domestic Water Heat Exchangers
22 35 13.19 Heating-Fluid-in-U-Tube-Coil, Instantaneous Domestic Water Heat Exchangers
22 35 13Instantaneous Domestic Water Heat Exchangers22 35 13.13Heating-Fluid-in-Coil, Instantaneous Domestic Water Heat Exchangers22 35 13.16Domestic-Water-in-Coil, Instantaneous Domestic Water Heat Exchangers22 35 13.19Heating-Fluid-in-U-Tube-Coil, Instantaneous Domestic Water Heat Exchangers22 35 23Circulating, Domestic Water Heat Exchangers22 35 23.13Circulating, Compact Domestic Water Heat Exchangers22 35 23.16Circulating, Storage Domestic Water Heat Exchangers22 35 29Noncirculating, Domestic Water Heat Exchangers22 35 29.13Noncirculating, Compact Domestic Water Heat Exchangers22 35 29.16Noncirculating, Storage Domestic Water Heat Exchangers22 35 36Domestic Water Brazed-Plate Heat Exchangers22 35 39Domestic Water Frame-and-Plate Heat Exchangers22 35 43Domestic Water Heat Reclaimers