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The Lennox 11X42 is a heat exchanger assembly for Lennox units, compatible with the EL296UH series. It transfers heat between air and combustion gases to facilitate thermal energy exchange within furnace systems. The assembly is sold as a single replacement unit and is listed as OEM part 605996-93 for compatible Lennox furnace models.
OEM Lennox heat exchanger assembly, MPN 11X42; sold as one complete unit
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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