Abstract: The present disclosure relates to an adjustable mount apparatus. The apparatus may have a material support having a plurality of support legs, with each one of the support legs having a distal portion. A base assembly is used which has a plurality of laterally extending leg portions. A plurality of adjustably positionable capture subassemblies are slidably disposed within the laterally extending leg portions for releasably coupling to the distal portions of the support legs to hold the material support in a stable manner on the base assembly. A plurality of moveable elements, each being independently associated with one of the capture subassemblies, enable highly controlled linear movement of the capture subassemblies. Each capture subassembly engages with the distal portion of one of the support legs to exert a clamping force thereon, to affix the material support securely to the base assembly.

Abstract: The combination of a vent assembly with a conduit assembly bounding a flow space into which discharged combustion gases are exhausted. The conduit assembly has a first conduit length in which: a) combustion gases are communicated in a first direction in a first path between the flue outlet and a vent outlet; and b) backflow is communicated in the first path in a direction opposite to the first direction. The conduit assembly has a draft control assembly, with a conduit portion defining a flow passage in which backflow is diverted out of the first path. The draft control assembly further has a flow guide assembly that intercepts and guidingly diverts the backflow into the conduit portion to be exhausted.

Abstract: A direct sidewall vent system between a fuel-burning appliance in a first space and an external atmosphere, through a wall between the first space and external atmosphere. The direct sidewall vent system has a wall assembly that defines a first passage for communicating combustion gas generated through operation of the fuel-burning appliance to a first outlet through which the combustion gas is communicated to the external atmosphere. The wall assembly further defines a second passage for communicating makeup air from the external atmosphere to the fuel-burning appliance in the first space. The direct sidewall vent system further has an external portion that is situated within the external atmosphere and at which the first outlet is located. The external portion of the direct sidewall vent system has a top, a bottom, and spaced sides.

Abstract: A vent fan is for directing a fluid along a vent pipe. The vent fan has a housing defining an inlet, an outlet and an internal space for a fluid flow path. A separating wall divides the internal space into an inlet and outlet chamber. The vent fan also includes first and second baffles to block the fluid flow from traveling into the outlet and inlet chambers respectively. The separating wall may also include at least one fin for directing the fluid flow towards a first passageway.

Abstract: A hot water heater comprises a valve control unit having a gas inlet, a pilot burner, a main burner and a damper assembly. The damper assembly has a pressure diaphragm, a gearing mechanism and a movable damper. The control unit being coupled to operatively supply gas to the pilot burner, the main burner and the damper assembly whereby when gas is supplied to the damper assembly, the pressure diaphragm is moved to thereby cause the gearing mechanism to move the damper from a first position to a second position.