Fireplace systems
OwnerCharles M. Boydinventor
Life of this patent
Estimating the term…
Abstract
A fireplace is designed for installation in an enclosure such as a house. It includes a firebox for confining the combustion region. Of course, it has an exhaust outlet. A heat-exchange system is in heat-transfer relationship with the firebox. An air supply feeds air from outside the enclosure. A circulation system conducts air through the heat-exchange system and in communication with the enclosure. A control arrangement governs the conveyance of air from the supply to both the firebox and the heat-exchange system. A thermostat system within the enclosure operates the control means in response to temperature changes. Outside air is utilized both to control the degree of combustion and in the operation of the circulation system that heats the enclosure. A hollow grate system enhances efficiency.
Claims35
A fireplace system installed within an enclosure and comprising:
- a firebox of heat-conductive material for confining the region of combustion of burnable products;
- means defining an opening in the front of said firebox for enabling the insertion into said firebox of burnable products to be consumed;
- an exhaust outlet for the egress of combustion products from said firebox;
- a heat-exchange system in heat-transfer relationship with said firebox;
- an air supply capable of feeding air from without said enclosure;
- a circulation system for conducting air through said heat-exchange system and in communication to and from said enclosure;
- control means for governing the conveyance of air from said supply to at least one of said firebox and said circulation system;
- thermostat means within said enclosure for enabling and disabling said control means in response to temperature change within said enclosure;
- and means, including a selectively openable closure for said opening, for at least essentially completely separating the flow of air in said circulation system from the flow of combustion air into said firebox and the egress of combustion products from said firebox.
In a fireplace system installed within an enclosure and including a firebox for confining the region of combustion of burnable products together with an exhaust outlet from said firebox, the improvement comprising:
- a grate located within said fireplace and including a plurality of hollow tubes;
- means for circulating a fluid to be heated through said tubes;
- a supply of air;
- and a pipe disposed transversely of said firebox near to the front and lower walls thereof and with a plurality of apertures being defined in and spaced successively along said pipe, and pipe being coupled to said supply so that said air is conveyed into said firebox through said pipe and out of said apertures to form an air screen across the front of said firebox.
In a fireplace system installed within an enclosure and including a firebox for confining the region of combustion of burnable products together with an exhaust outlet from said firebox, the improvement comprising:
- a grate located within said fireplace and including a plurality of elongated hollow tubes having uninterrupted continuous sidewalls;
- means for circulating a fluid to be heated through said tubes;
- and a plurality of elongated bars, individually aligned with a plurality of generally parallel-spaced ones of said tubes and respectively disposed laterally between successive different ones of said tubes in and at an elevation between the respective levels of the tops and bottoms of said tubes, said bars being of a width occupying a sufficient amount of the space directly laterally between said tubes to serve along with said tubes to support coals, of a size which otherwise could drop between said tubes, in a position adjacent to the sides of said tubes.
Dependencies are inferred from the claim text.