CAST-IRON RADIATOR · 2021 · Best in Design 2021 · Grand Prize

Edudant

Edudant is a cast-iron radiator for period flats and villas built in the first half of the twentieth century. Its section proportions and evenly spaced ribs retain the character of traditional radiators. The cast surfaces are smooth and unornamented.

01 / EDUDANT

The shape of a section

The outer faces of the ribs follow a common curve based on a superellipse in longitudinal section. From across the room, the radiator reads as a single volume. Between the ribs, the surface curves towards the opening that carries water into the next section. Both surfaces meet in a single casting.

Three views of the assembled Edudant radiator

Two ribs at the upper connection and the end plug

Side view of the rounded outlines of the cast-iron sections

The curved transition from each rib to the horizontal water passage

02 / EDUDANT

One detail, four mirrors

The clay model shows the junction between a vertical rib and the horizontal water passage. Four mirrors repeat a single model in a row, revealing the spacing between ribs. A comparison of CAD variants informed the final refinement of the junction in clay.

A clay model of the rib junction repeated in mirrors

Two CAD studies with different curves at the upper junction

03 / EDUDANT

Dimensions and connections

Each section is 60 mm wide and 120 mm deep, with a water capacity of 0.8 litres. The overall height is 580 mm, with standard 500 mm pipe centres. Side and bottom connections accommodate different pipe layouts in existing buildings.

Front and side elevations with dimensions and diagrams of bottom and side connections

Four individual Edudant sections in different finishes

Ondřej Pechal · Tvarůžek/Blaha Studio, Department of Industrial Design, Faculty of Architecture, Czech Technical University in Prague · January 2021

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