On February 6, 1840, Hobson, several English residents, and 45 Maori chiefs, signed the Maori text of the Treaty of Waitangi at Waitangi in the Bay of Islands with Hone Heke being the first. total of 512 chiefs, including 13 women, signed the nine copies of the Treaty of Waitangi, mostly the Maori language text, at 34 locations around New Zealand between February 6 and May 21, 1840. Only 39 chiefs signed the English language version at Waikato Heads and at Manukau.
Chimney Dampers. Chimney dampers serve a useful purpose by acting as a doorway that opens and closes your chimney, and your house for that matter, to the outside elements. However most flue dampers that exist in traditional masonry fireplaces are made of cast iron and they aren't the greatest sealing devices.
Air Dampers â Perfect for a Wide Variety of Applications. At Johnson Controls, we offer Damper Controls in a diverse range of models. Choose from both rectangle and round configurations designed specifically for things like safety applications, low-leakage and heavy duty industrial needs, and backdraft for pressure relief. Ideal for outdoor air applications that require low-leakage rated dampers, our HVAC dampers prevent hot or cold outside air from penetrating your building.