
Design / GH Form
The GH Form Plinth Dehumidifier is designed and developed by GH Form and put into production because we see a need for an environmentally friendly, simple, and easy‑to‑install plinth dehumidifier that meets the latest requirements. A plinth dehumidifier directs moisture away from a building’s plinth through a channel with an accompanying grate. The system consists of three‑meter sections made of zinc, along with cast iron grates.
The channel is available in installation heights of 150 or 200 mm, providing medium or high ventilation class respectively, and the grate can be placed in an unbroken run around a building using customized corner joints, while the distance to the plinth is adjusted with spacers that can be adjusted up to 75 mm.
The grate can be supplied with various surface finishes and can be adapted to project requirements. The outlet fits a Ø110 mm drainage pipe and can be positioned as needed. At entrance areas, a closed grate with an 8 mm gap between the grate and the frame can be used, functioning as slot drainage and providing level‑free access. The grate and frame are manufactured so that the grate covers the frame on the building side.
All our cast‑iron grates are EPD‑certified - an environmental product declaration developed in accordance with recognized European and international standards and the requirements of EN 15804.

Item number
No SKU available
Material
Zinc
Dimension
B 100 x L 2995 x 200 mm, B 140 x L 1000 x H 200 mm, B 140 x L 1020 x H 200 mm, B 140 x L 2500 x H 200 mm, B 190 x L 1000 x H 200 mm, B 190 x L 1020 x H 200 mm, B 190 x L 3000 x H 200 mm, B 240 x L 1000 x H 200 mm, B 240 x L 1020 x H 200 mm, B 240 x L 3000 x H 200 mm
Assembly
Download installation instructions
Optional extras
No data available
Weight
No data available
Additional information
No data available
The GH Form Plinth Dehumidifier is designed and developed by GH Form and put into production because we see a need for an environmentally friendly, simple, and easy‑to‑install plinth dehumidifier that meets the latest requirements. A plinth dehumidifier directs moisture away from a building’s plinth through a channel with an accompanying grate. The system consists of three‑meter sections made of zinc, along with cast iron grates.
The channel is available in installation heights of 150 or 200 mm, providing medium or high ventilation class respectively, and the grate can be placed in an unbroken run around a building using customized corner joints, while the distance to the plinth is adjusted with spacers that can be adjusted up to 75 mm.
The grate can be supplied with various surface finishes and can be adapted to project requirements. The outlet fits a Ø110 mm drainage pipe and can be positioned as needed. At entrance areas, a closed grate with an 8 mm gap between the grate and the frame can be used, functioning as slot drainage and providing level‑free access. The grate and frame are manufactured so that the grate covers the frame on the building side.
All our cast‑iron grates are EPD‑certified - an environmental product declaration developed in accordance with recognized European and international standards and the requirements of EN 15804.
GH Form A/S
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