Automatic regulated control of incoming fresh air. Blends cold air with ambient room air before discharging it into home. Interlock shuts down burner if intake hood is blocked or performance is significantly reduced.
Damper closes during off cycles to prohibit cold air entry and warm air loss.
Helps replace air vented by exhaust fans, fireplaces, ect. Reduces negative pressure a major cause of flue gas spillage and radon gas entry. The performance shown is based on equivalent feet. Do not includethe intake elbow or gooseneck, they have already been factored into the performance data.