A discharge section of a heating, ventilation, and/or air conditioning (HVAC) system, includes a first wall defining an opening configured to receive an air flow from a blower of the HVAC system, a second wall spaced apart from and disposed opposite the first wall, and a diverter baffle disposed at an oblique angle relative to the first wall and the second wall and configured to divert the air flow received through the opening.

A stove for indoor use includes a housing having a bottom wall, a top wall and one or more side walls defining a combustion chamber adapted to retain a fire, and an air supply system for supplying air to the combustion chamber. The air supply system includes a primary air conduit for supplying air to the combustion chamber from below through the bottom wall and a secondary air conduit for supplying air to the combustion chamber from above. A valve is arranged in the primary air conduit or in a branching between the primary and secondary air conduits. The valve is controlled by a bimetal whereby the valve is in a maximum open position when the prevailing temperature is below a first predetermined temperature during start-up of a fire and in a maximum closed position when the prevailing temperature is above a second predetermined temperature after start-up of the fire.

A limit switch assembly including a shape memory member, a furnace system for incorporating the same, and a method for controlling a furnace are provided. The limit switch assembly includes a switch communicatively connected to a control board of a furnace. The switch is configured to send a signal to the control board when actuated. The shape memory member is configured to actuate the switch. The control board, in certain instances, shuts off the furnace and arrests the supply of combustible gas when receiving the signal from the switch. The shape memory member, in certain instances, actuates the switch as a result of being heated.

A furnace is disclosed. The furnace may include an enclosure having a vertical support column formed by a heat exchanger compartment panel and a blower compartment panel. The furnace may include a window assembly having venting openings hidden by a viewing window. The furnace may also include a rail to support a removable heat exchanger system. The furnace may further include a wire retaining fin assembly to retain a wire. A heat exchanger header design including features to retain a sealant is also disclosed.

A linear fireplace system, assemblies, modular units, and related methods that can be installed in a modular fashion at a selected installation location so as to avoid drawbacks experienced in the prior art. The system can include modular linear units, corner units, and/or end units interconnectable to form a modular linear fireplace assembly. The system can include an alignment track system with a track member that receives alignment rails on the bottom of the modular units to axially align the interconnected units. The system can include a combustion air flow passage within the fireplace that maintains a relatively low exterior temperature of the assembly and that allows combustible and non-combustible building materials to be installed against or immediately adjacent to the top and base portions of the modular units of the assembly.

A high turndown furnace for an air handling system. In one example, the furnace includes a plurality of tubes divisible by four with a first modulating valve supplying gas to of the tubes and a second modulating valve supplying gas to of the tubes. In one aspect, the furnace is capable of providing a 16:1 turndown. In one aspect, the furnace is capable of providing seamless turndown operation throughout the entire firing range.

A heating assembly can include a switching valve which can include certain pressure sensitive features. These features can be configured to change from a first position to a second position based on a pressure of a fuel. The valve can be used with either a first fuel or a second fuel different from the first. The valve can become locked or be held in either the first or the second position. For example, a set fuel pressure can cause the valve to move to a closed position and the valve can become locked or held in that position. If the pressure decreases, the valve can remain in the locked position. Actuation of a reset switch can allow the valve to move to a new position, such as an open position.

A linear fireplace system, assemblies, modular units, and related methods that can be installed in a modular fashion at a selected installation location so as to avoid drawbacks experienced in the prior art. The system can include modular linear units, corner units, and/or end units interconnectable to form a modular linear fireplace assembly. The system can include an alignment track system with a track member that receives alignment rails on the bottom of the modular units to axially align the interconnected units. The system can include a combustion air flow passage within the fireplace that maintains a relatively low exterior temperature of the assembly and that allows combustible and non-combustible building materials to be installed against or immediately adjacent to the top and base portions of the modular units of the assembly.

A kit for assembling a heating system and a heating system, which when assembled, comprises at least two heating devices, a partition constituting at least a part of one wall of each of the devices, which separates between interiors thereof, and a sealing arrangement mounted at least along upper, lower and rear edges of the partition to at least reduce a heat transfer between the interiors of the two devices at said edges so as to allow individual heating operation of each of the heating devices; the heating devices having a common front wall at least seen from an exterior of the system as a single front face of the system.

A furnace is disclosed. The furnace may include an enclosure having a vertical support column formed by a heat exchanger compartment panel and a blower compartment panel. The furnace may include a window assembly having venting openings hidden by a viewing window. The furnace may also include a rail to support a removable heat exchanger system. The furnace may further include a wire retaining fin assembly to retain a wire. A heat exchanger header design including features to retain a sealant is also disclosed.