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Replaces: cracked
La Marzocco 25A solid state relay
Plastic is favored for its low thermal mass without extensive preheating and Polypropylene has a reputation for handling high temperatures
Instructions for Use
Replaces: MAZ_19
Astoria Straight Heat Exchanger z-9-z-11-parts/z-11-re-manual-group Replaces: crackedAstoria Straight Heat Exchanger The oldest version of this heat exchanger, no longer in production. This is limited old stock inventory that has been sitting for roughly two decades, so units show heavy surface oxidation. COMPATIBILITY Fits: older Astoria boiler assemblies using the straight style heat exchanger (discontinued, not interchangeable with later curved versions) INSTALLATION Moderate DIY to professional difficulty; recommend a qualified
