Radiant space heater

Claim 2

A space heater which delivers radiant heat downwardly which comprises a separately functional burner receiving module unit, a series of separately functional reverse-flow module units, a separately functional discharge module unit, two side frames each made up of two horizontal bar members and two vertical bar members connected at their meeting ends to form an open frame, and combustion tubes disposed parallel to said side frames and arranged to direct combustion gases from the burner receiving module unit, through the reverse flow module units and finally through the discharge module unit, said combustion tubes being connected to and supported by said module units, and several of said module units being attached to said vertical bar members to thereby hold and support said two side frames in their spaced relationship.

Claim 3

The space heater according to claim 1 in which all of the module units are connected to said vertical bar members.

Claim 4

The space heater according to claim 1 in which the burner receiving module and the discharge module units are connected to the same end vertical bar members and the reverse-flow module unit between these latter module units is supported for free endwise movement.

Claim 5

The space heater according to claim 1 in which the discharge module unit is a plate which is attached to vertical bar members at the same end of the heater and it has a hole therethrough to receive and support a combustion tube.

Claim 6

The space heater according to claim 1 in which the discharge module unit includes two spaced side plates which are connected respectively to the two vertical bar members at the same end of the heater and also includes a curved plate which is attached to said two spaced side plates and serves to direct the gases through a guarter turn.

Claim 7

The space heater according to claim 1 in which the reverse-flow module units each include two spaced side plates and a curved plate attached to them and serving to direct the gases through a half turn, the side plates of at least one of the reverse-flow module units being connected respectively to the two vertical bar members at the same end of the heater.

Claim 8

The space heater according to claim 1 in which the burner receiving module unit includes a plate and a collar projecting therefrom inwardly of the heater, the end of the associated combustion tube having a sliding fit within said collar, and a heat resistant material lines the interior of said tube end and serves as a gasket by contact with said plate upon lengthwise heat expansion of the tube.

Claim 9

The spaCe heater according to claim 7 in which said heat resistant material includes an apertured disc portion which provides an increased gasket surface to contact said plate and form a seal.

Claim 10

The space heater according to claim 1 in which the burner receiving module unit includes a plate which is attached to vertical bar members at the same end of the heater and it has a hole therethrough for the passage of a combustion flame.

Claim 11

The space heater according to claim 1 in which slotted vertical plates extend between and are attached to the horizontal bars of each frame and horizontal reflector vanes are carried in the slots.

Claim 12

A space heater which delivers radiant heat downwardly which comprises a separately functional burner receiving module unit, a series of separately functional reverse-flow module units, a separately functional discharge module unit, two side frames each made up of two horizontal bar members and two vertical bar members connected at their meeting ends to form an open frame, and combustion tubes disposed parallel to said side frames and arranged to direct combustion gases from the burner receiving module unit, through the reverse-flow module units and finally through the discharge module unit, said module units being connected to the combustion tubes and being attached to said vertical bar members so that the module units serve the dual functions of supporting the combustion tubes in said relationship and also holding and supporting said two side frames in their spaced relationship.

Claim 13

A space heater which delivers radiant heat downwardly which comprises a separately functional burner receiving module unit, a series of separately functional reverse-flow module units, a separately functional discharge module unit, two side frames each made up of two horizontal bar members and two vertical bar members connected at their meeting ends to form an open frame, and combustion tubes disposed parallel to said side frames and arranged to direct combustion gases from the burner receiving module unit, through the reverse-flow module units and finally through the discharge module unit, said module units being connected to the combustion tubes and being attached to said vertical bar members so that the module units serve the dual functions of supporting the combustion tubes in said relationship and also holding and supporting said two side frames in their spaced relationship.

Claim 14

The space heater of claim 11 in which at least one of said reverse-flow module units includes two spaced side plates which are attached respectively to said side frames.