A cable television entry adapter interfaces to a CATV network and serves as a hub in an in-home network for passively communicating multimedia content or information from the CATV network and between subscriber devices connected to the ports of the CATV entry adapter, using CATV signals in a CATV frequency band and network signals in a different in-home network band. The bit line selector 14s selects one bit line and couples it to the page buffer unit circuit 14u. The clamp plate can engage with an outer surface of a pipe. The apparatus further detects and stores that the ion current traverses a reference voltage during the AD conversion time period. The heat exchanger also includes at least one first blind conduit including an opening communicating with the first substantially enclosed heat exchanging chamber and a distal end spaced from the opening.