The Principles of the Treaty of Waitangi (in MÄori: ngÄ mÄtÄpono o te tiriti) are partly an attempt to reconcile the different te reo MÄori and English language versions of the Treaty of Waitangi, and allow the application of the Treaty to a contemporary context.he Principles of the Treaty of Waitangi (in MÄori: ngÄ mÄtÄpono o te tiriti) are partly an attempt to reconcile the different te reo MÄori and English language versions of the Treaty of Waitangi, and allow the application of the Treaty to a contemporary context.
A Lock-Top damper or energy-saving damper is a damper that is connected to the chimney system at the top of the flue. Like a throat damper, it has an easy-to-use cable for opening and closing the flue (donât worry â you wonât have to go up on the roof!), but unlike a throat damper, a Lock-Top damper provides an airtight seal.
The Field Vent Damper is installed in the vent pipe, after the draft hood, or barometric. During off cycles, it remains closed, preventing air flow through the vent. When there is a call for heat, the motor is energized, rotating the damper 90 degrees to an open position. Opening and closing takes approximately 15 seconds. When the damper is fully open, the burner is allowed to fire and flue gases pass freely through the vent. When the thermostat is satisfied, the burner stops, and the damper automatically closes.