Single-Flow Wall-Mounted Fresh-Air Units Are the Market Mainstay

2023-11-08 13:35:46

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“ More than 66% of fresh-air units sold are low-airflow, single-flow wall-mounted models because they are compact, affordable, retrofit-friendly, and effective. ”

Why have single-flow wall-mounted fresh-air systems remained the mainstream choice online? Why are more than 66% of all fresh-air units sold low-airflow, single-flow wall-mounted models? Their appeal to ordinary households is easy to understand: they are flexible to install, can be retrofitted in finished rooms, provide effective ventilation, are generally smaller than dual-flow units, and are more affordable. Dual-flow fresh-air units have advantages of their own. For example, directly extracting smoke works better in smoking areas. In a typical home, however, installing a forced-supply wall-mounted fresh-air system in each room can fully meet ventilation needs.

Dual-flow wall-mounted units also have a drawback. To prevent airflow short-circuiting, the fresh-air inlet and exhaust outlet should be positioned as far apart as possible, generally more than 1 meter. Yet wall-mounted fresh-air units are valued for their compact size, which tends to place the inlet and outlet very close together. This can create a short circuit: newly supplied, filtered clean air quickly mixes with the stale indoor air and is then exhausted again. This is another reason most users choose single-flow wall-mounted fresh-air systems.

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Single-Flow Wall-Mounted Fresh-Air Units Are the Market Mainstay

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