HVAC

Heat Recovery Retrofit for Existing Buildings

Updated 2026-09-02 · 6 min read

You do not need a new building to add recovery. Most existing AHUs and exhaust systems can accept a retrofit core.

Retrofit paths

Watch-outs

Specifying a unit for your project?

EN159 builds plate, rotary, heat-pipe and counterflow air-to-air exchangers for retrofit and new-build duty. Send airflow (m3/h), inlet temperatures and available space and we will size it.

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