Astoria Straight Heat Exchanger

Astoria 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 technician for boiler plumbing work.

PRO TIPS

• This is old-stock inventory, not a fresh production run, expect heavy surface oxidation from two decades on the shelf. It's still a functional heat exchanger core, but plan to clean it up before installing, and confirm your boiler uses the straight (not curved) style before ordering, since this discontinued version is not interchangeable with later designs.