Axial fans for wall, panel and ceiling installation and for direct air exhausting in household and commercial premises; centrifugal fans for wall, panel and ceiling installation and for ducted air exhausting in household and commercial premises; mixed-flow fans for wall, panel and ceiling installation and for ducted air exhausting in household and commercial premises; [ ceiling fans; floor based or wall-mounted installations, namely, convector heaters for household heating as main or subsidia...