Improved mobile home heater

In a heater,

• a double-walled stove body having an air-for-combustion passage between the walls thereof having an inlet at the bottom of the body,
• an inlet passage between the walls and having an inlet opening at one end and an outlet into the interior of the body at its other end,
• the body having a front wall having a door opening,
• and fireplace door means adapted to close the door opening and movable to open the door opening to adapt the heater for fireplace mode of operation,
• the body having a second outlet from the inlet passage at the front of the body,
• the fireplace door means closing the second outlet when in a position closing the door opening and opening the second outlet when opened.

In a heater,

• stove body means defining a fire chamber and having a double-wall back and a double-wall bottom having an air inlet therein and connected for air flow to the interior of the double-wall back,
• the double-wall back having a combustion air inlet from the interior thereof into a fire chamber in the body means,
• a downdraft manifold in the double-wall back and connecting the interior of the back to the inlet to the fire chamber,
• the double-wall bottom having an outlet at the front of the body means,
• the body having a front provided with a fireplace door opening,
• and a fireplace door movable from a closed position closing the door opening and the outlet and an open position opening the door opening and the outlet.

In a heater,

• stove body means defining a fire chamber and having a double-wall back and a double-wall bottom having an air inlet therein and connected for air flow to the interior of the double-wall back,
• the double wall-back having a combustion air inlet from the interior thereof into a fire chamber in the body means,
• the double-wall bottom having an outlet at the front of the body means,
• the body means having a front provided with a fireplace door opening,
• and a fireplace door movable from a closed position closing the door opening and the outlet to open the door opening and the outlet.

In a heater,

• heater body means having a stack outlet,
• a stack pipe connected to the outlet and having a vertical portion,
• an injection tube extending into the vertical portion of the stack pipe from the exterior of the stack and directing air upwardly in the stack,
• the tube extending through the wall of the pipe,
• a valve closure member,
• and bimetallic means mounting the valve closure member on the stack for moving the closure member to close the tube when the stack is hot and moving the closure member to open the tube when the stack is cool,
• the valve closure member including a looped guard spaced from and covering the opening, a bimetallic member between the guard and the stack and a valve closure member carried by the bimetallic member.