System for controlled heating and ventilating of poultry houses

A heating-ventilating system for a poultry house with adjustable curtains for ventilation comprising

• an air duct,
• a fan mounted therein,
• a fuel burner mounted in said duct upstream from said fan,
• a starter fuel jet,
• a temperature sensor producing first and second signals for first and second non-contiguous temperature ranges adapted to be placed in said poultry house out of the direct air flow from said fan,
• means for controlling said fan to operate in response to either said first or second signal,
• means for controlling said burner to operate in response to said first signal only,
• a flame sensor in proximity to said starter fuel jet,
• a valve for said fuel burner and control means for opening said valve responsive to said flame sensor and said temperature sensor,
• a motor for raising and lowering said adjustable curtains, and
• means for controlling said motor to raise said curtains when said burner is operative and to lower said curtains when said burner is inoperative and said fan is operative.

A heating-ventilating system for a poultry house comprising

• an air duct having an air intake and an exhaust opening,
• a fan mounted near the exhaust opening therein,
• a fuel burner mounted in said duct upstream from said fan,
• means including a perforated baffle for directing the air flow at a controlled velocity and direction past said burner,
• a starter fuel jet adjacent said burner,
• a flame sensor in proximity to said starter fuel jet,
• a temperature sensor producing first and second signals for first and second temperature ranges and adapted to be placed in said poultry house out of the direct air flow from said fan,
• means for controlling said fan to operate in response to said flame sensor and said temperature sensor first signal,
• means for controlling said fan to operate in response to said temperature sensor second signal, and
• a valve for said fuel burner and control means for opening said valve responsive to said flame sensor and to said first signal from said temperature sensor.

A heating-ventilating system for a poultry house comprising

• an air duct having an air intake and an exhaust opening,
• a fan mounted near the exhaust opening therein,
• a fuel burner mounted in said duct upstream from said fan,
• means for reducing fluctations of the mass velocity of air through said duct past said burner including adjustable louvers disposed immediately upstream of said burner, a top one of said louvers being hinged in a manner to deflect air flow downward and a bottom one of said louvers being hinged to deflect air flow upward,
• control means for adjusting said louvers in response to at least one sensor measuring a parameter associated with the air flow through said duct,
• means including a perforated baffle for directing the air flow at a controlled velocity and direction past said burner,
• a starter fuel jet adjacent said burner,
• a flame sensor in proximity to said starter fuel jet,
• a temperature sensor producing first and second signals for first and second temperature ranges and adapted to be placed in said poultry house out of the direct air flow from said fan,
• means for controlling said fan to operate in response to said temperature sensor, and
• a valve for said fuel burner and control means for opening said valve responsive to said flame sensor and to said first signal from said temperature sensor.

A heating-ventilating system for a poultry house comprising

• an air duct having an air intake and an exhaust opening,
• a fan mounted near the exhaust opening therein,
• a fuel burner mounted in said duct upstream from said fan and approximately vertically centered therein,
• means including a perforated baffle for directing the air flow at a controlled velocity and direction past said burner,
• a starter fuel jet adjacent said burner,
• means for reducing fluctuations of the mass velocity of air through said duct past said burner including adjustable louvers disposed immediately upstream of said burner, a top one of said louvers being hinged in a manner to deflect air flow downward and a bottom one of said louvers being hinged to deflect air flow upward,
• a temperature sensor producing first and second signals for first and second temperature ranges in said poultry house,
• means for controlling said fan to operate in response to said temperature sensor,
• and a valve for said fuel burner and control means for opening said valve responsive to said second signals for said temperature sensor.