A pass-through device for a chimney, and a chimney support system having pass-through device for a chimney, are provided. The pass-through device includes a pass-through tube and a chimney support disposed within the pass-through tube. The chimney support is supported by the pass-through tube from within the pass-through tube.

A portable chimney system includes a trailer having an opening extending into an interior of the trailer. A door is hingedly coupled to the trailer and the door is positionable in a closed position. An awning is removably coupled to the trailer. The awning is selectively positioned on the rear side such that the awning surrounds the opening. The door abuts the awning when the door is positioned in the closed position. A chimney is removably coupled to the awning. The chimney may be fluidly coupled to a stove is positioned within the trailer thereby facilitating the chimney to direct combustion gases outwardly from the trailer.

A roof-mounted venting device or assembly adapted for use with roof mounted photovoltaic (PV) panels is provided. Venting devices and assemblies can include a replacement flashing that fits over a cut-down roof pipe vent as well as venting assemblies that redirect airflow from a roof pipe vent. Such replacement flashing can include a substantially planar flashing portion from which protrudes a hood portion with one or more vent openings to allow airflow into and out from the interior of the hood portion. The vent openings can be configured as a series of louvered openings that open in a down-roof direction to prevent flow of run-off and debris into the hood portion. Venting assemblies can include a coupling portion for mating with a vent-pipe, a section of hose or piping to redirect airflow, and a venting portion disposed outside or between roof-mounted solar panels.

A portable chimney system includes a trailer having an opening extending into an interior of the trailer. A door is hingedly coupled to the trailer and the door is positionable in a closed position. An awning is removably coupled to the trailer. The awning is selectively positioned on the rear side such that the awning surrounds the opening. The door abuts the awning when the door is positioned in the closed position. A chimney is removably coupled to the awning. The chimney may be fluidly coupled to a stove is positioned within the trailer thereby facilitating the chimney to direct combustion gases outwardly from the trailer.

A roof vent for a contoured metal surface. The roof vent includes a base or foot having one or more recessed channels that extend between opposing edges of the foot. The recessed channels are sized and shaped to receive correspondingly shaped ridges of the contoured metal roof surface.

A roofing vent cap that is configured for use on a metal roof. The inventive vent cap includes a rib receiver designed to fit closely under a metal roof panel rib. Two lateral shoulders are provided to increase the footprint and internal volume of the hollow vent cap. These lateral shoulders allow the vent pipe to be laterally displaced from the roofing panel rib while the vent cap remains centered on the rib.

A pass-through device for a chimney, and a chimney support system having pass-through device for a chimney, are provided. The pass-through device includes a pass-through tube and a chimney support disposed within the pass-through tube. The chimney support is supported by the pass-through tube from within the pass-through tube.