puhdistusaukot

Puhdistusaukot, which translates to "cleaning openings" or "cleaning access points," are structural features commonly found in older buildings, particularly in Nordic countries like Finland. These are small, often bricked-up or otherwise sealed, apertures designed to allow access to the interior of chimneys, ventilation ducts, and other concealed spaces for cleaning and maintenance.

Historically, when fireplaces and solid fuel heating systems were prevalent, soot and debris would accumulate within chimneys. Puhdistusaukot provided a convenient way for chimney sweeps to remove these blockages without having to dismantle large sections of the chimney structure. Similarly, they allowed for the cleaning of ventilation shafts, which could become clogged with dust, lint, or other obstructions, impacting air quality and building safety.

These openings are typically small, often no larger than a brick or a small tile, and were usually located at the base of a chimney or along the path of a duct. After use, they were sealed, often with a removable brick, a wooden plug, or simply plastered over, to maintain the integrity of the building's thermal insulation and prevent drafts.

While modern heating systems and ventilation methods have reduced the necessity for traditional puhdistusaukot, many older buildings still retain them. Their presence can sometimes be a clue to the building's original construction and heating methods. In some cases, during renovations, these openings might be repurposed for modern services or permanently sealed as they are no longer required.