Air heating and circulating apparatus

Air heating and circulating apparatus adapted to be positioned on the floor of a fireplace comprising

• a base pipe defining a primary heating chamber adapted to be positioned at the rear of the fireplace and an inlet leg angularly extending from one end of said primary heating chamber to an inlet opening adjacent the front of the fireplace and adapted to be positioned along one side of the fireplace for supplying air to said primary heating chamber;
• a hot air discharge pipe defining a secondary heating chamber positioned above and slightly behind said primary heating chamber and having an open end and a closed end and an outlet leg angularly extending from said open end of said secondary heating chamber to an outlet opening and adapted to be positioned along an opposite side of the fireplace for discharging air, said hot air discharge pipe being arranged on an upward incline from said secondary heating chamber to said outlet opening;
• and
• support pipe means mounting said hot air discharge pipe above said base pipe and providing communication between said primary heating chamber and said secondary heating chamber, said support pipe means including first and second L-shaped support pipes fixed to a rear side wall of said primary heating chamber and a bottom wall of said secondary heating chamber, said first and second support pipes being arranged at an angle to the vertical, whereby air is heated in said primary heating chamber and moves to said secondary heating chamber with a horizontal velocity component and the heated air in said secondary heating chamber is discharged from said outlet opening due to said incline of said hot air discharge pipe.