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also identified as RLY2038 and RLY2038K
heat-resistant materials to withstand the thermal cycling typical of modern condensing furnaces
helping the unit maintain its designed energy efficiency levels
which drives up heat exchanger temperatures
Lennox 33M14 Heat Exchanger R-410A also identified as RLY2038 andThe Lennox 33M14 Heat Exchanger is a heavy duty high heat aluminum heat exchanger assembly engineered for reliable thermal transfer in 10 to 20 ton LGB120 and LGB240 series rooftop units. As a veteran grade OEM replacement part (LB 101202G), it features 11 burner tubes designed to handle high demand cycles without premature metal fatigue. The aluminized steel construction provides superior thermal conductivity and corrosion resistance compared to
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