6-Inch Flex Duct Window Vent Port

Description

6-inch flex duct window vent port — the exit for a miner’s exhaust

This 6-inch flex duct window vent port is where a home mining run ends: a 210 mm square plate that mounts into a window insert panel, a plywood blank or a wall penetration, carrying a male collar that 6-inch flex duct slips straight over. Clamp the flex on behind the retention bead and the heat, the noise and the dust leave the room together.

It answers the question every apartment, basement and garage miner asks first — how do I vent this thing out a window without cutting a hole in the building. The plate screws to a panel you make and can unmake: acrylic, ply or rigid insulation cut to the window track. Renters get their deposit back; the window still closes on the panel.

The plate shares its hardware with the rigid 6-inch port — countersunk mounting holes, a gasket groove around the opening, and gussets under the collar so a hanging duct does not lever it out of the panel. What changes is the duct interface: a male collar for flex, 145.6 mm through the bore, instead of a socket for rigid pipe. Front to back the whole port is 39 mm, so it clears a closing sash rather than standing off the panel into the room.

What it fits — 6-inch flex duct and a panel you can cut

• 6-inch flex duct, slipped over the male collar and clamped on the land below the bead.
• Window insert panels, plywood blanks, rigid insulation board or a wall penetration, through the countersunk mounting holes.
• A gasket or foam strip in the groove around the opening, to seal the plate to the panel.

If your run ends in rigid pipe rather than flex, the 6″ Window Exhaust Port takes a rigid socket and keeps a 153.2 mm bore — the larger opening of the two. Choose by what the last metre of your duct actually is. For a full-size 8-inch run, the 8-Inch Flex Duct Window Vent Port is the same idea on a 248 mm plate.

How it installs

1. Cut a panel to your window opening and mark the port position, allowing room for the duct to sweep in without kinking.
2. Cut the opening, lay a gasket or foam strip into the groove, and screw the plate down through the countersunk holes.
3. Cut a disc of insect screen to the bore plus about 7 mm and press it into the rebate behind the retention tabs. Screen material is not supplied — hardware-store fibreglass mesh is what most people use.
4. Slip the flex duct over the collar and clamp it on the land, then close the window onto the panel.

Why this plate holds up where a taped hole does not

A window vent is a structural part, not a hole. It carries the weight of a hot duct, gets pulled sideways every time someone moves the machine, and sits in a temperature swing from a Quebec January to a hot exhaust stream. The gussets tie the collar to the plate so that load goes into the panel rather than into the collar root; the gasket groove gives a seal a place to sit and stay put instead of being taped across a rough cut edge; the countersunk holes let the screw heads sit flush so the window sash closes flat.

The opening runs clear — a single-piece port with no flap, no hinge pin and no moving parts to rattle in a night-time exhaust stream. That suits a machine that runs continuously, which is most of them. If you want one-way flow because you power down seasonally or the wind comes straight at that window, put an inline backdraft damper in the duct run, or cap the run at the shroud with a Threaded Collar Cap for Dual 120 mm to 6″ Shroud while the machine is down.

• End a 6-inch flex run at the wall without a rigid stub or an improvised transition.
• Screw down flush through countersunk holes so a window sash closes onto the panel.
• Seal to the panel with a gasket seated in a dedicated groove.
• Drop insect screen into a built-in rebate with retention tabs — no adhesive.
• Carry a hanging duct on gussets that tie the collar into the plate.
• Come apart again completely, which matters when you are renting.

Specifications

Open source — print it yourself, or buy it finished

Getting exhaust out of a rented apartment should not depend on what one shop decides to stock, so D-Central Technologies designed this port and published it rather than keeping it. The plate, the gussets, the groove and the screen rebate are our drawing, released under CC BY-SA 4.0 at the 3D models download center — free to download, modify, remix, print and sell, including scaling the plate to your own window. Its card is the 6-inch flex window port model.

The file is window_port_6in_flex.zip: STL, CC BY-SA 4.0 licence, and the installation and safety guide. This listing is the finished part, made to order in PETG in Montreal, Quebec, gussets and screen rebate included, in black or in orange. The files stay free whether or not you ever buy anything — the printed port, and D-Central’s fund page, are what pay for the next design in the line.

Works with

• 6″ Window Exhaust Port
• 6-Inch Flex Duct Adapter — Rigid Socket to Flex Collar
• Antminer S19 / S21 Dual 120 mm to 6″ Duct Shroud
• 6″ 90° Duct Elbow (Compact)
• Antminer S19 / S21 Dual 120 mm to 6″ Expansion-Chamber Shroud Silencer

Plan the whole run in the D-Central shroud and ducting system.

Frequently asked questions