HVAC - Clessidra
CLESSIDRA
Contemporary hourglass-shaped radiator · fully customizable widths · heights 400–2400 mm · designer contemporary style
General Information
The Geber CLESSIDRA is a contemporary designer radiator featuring vertical curved tubes in an iconic hourglass shape (diameter 8 mm) in a distinctive architectural design. Each radiator showcases a unique double-curved silhouette that converges at the center, creating visual impact while delivering exceptional thermal performance. Welded onto round collectors (diameter 25 mm) with epoxy powder coating finish.
Design-Driven Heating: Available with multiple width options while maintaining consistent height. Fully modular concept allows unlimited customization. Available in all standard RAL colors and custom finishes. Perfect for contemporary interiors demanding distinctive, design-forward heating solutions with striking architectural presence.
Technical Specifications
- Tubes: 8 mm diameter, round steel
- Collectors: Round Ø25 mm
- Design: Hourglass double-curved shape
- Epoxy powder coating
- Heights: 400–2400 mm
- Max operating pressure: 8 bar
- Test pressure: 12 bar
- Max temperature: 95 °C
Connection Options
- Bottom connection
- Central connection
- Single tube connection
- Custom configurations
- All standard RAL colors
- Custom finishes available
- Contemporary designer style
📐Technical Drawing — Hourglass Curved Profile Vertical Design
ALTEZZA
INTERASSE
LARGHEZZA
INTERASSE BASSO = LARGHEZZA - 50
FRONT VIEW — CLESSIDRA HOURGLASS RADIATOR
Top Connection Bar
Straight distribution (25 mm)
HEIGHT: 400–2400 mm
WIDTH: Fully Customizable
240–960 mm
PROFILE SECTION
8 mm diameter round steel tubes
DESIGN
Hourglass double-curved
STYLE
Contemporary designer
Bottom Connection Bar
Straight return (25 mm) - Inter-axis = Width - 50 mm
📊Thermal Performance Per Radiator Width (ΔT=50°C)
| Height (mm) | Width (mm) | Inter-axis (mm) | Thermal Power (Watt at ΔT=50) |
|---|---|---|---|
| 1900 | 240 | 1850 | 572 |
| 320 | 1850 | 753 | |
| 400 | 1850 | 920 | |
| 480 | 1850 | 1104 | |
| 560 | 1850 | 1288 | |
| 640 | 1850 | 1472 | |
| 720 | 1850 | 1656 | |
| 800 | 1850 | 1840 | |
| 880 | 1850 | 2024 | |
| 960 | 1850 | 2208 |
Technical Notes
Contemporary Hourglass Design:
8 mm round steel tubes curve inward toward the center, creating a distinctive double-curved silhouette that delivers both visual drama and solid thermal performance. Straight distribution and return bars at top and bottom provide structural integrity.
Thermal Output Per Width:
Values shown are for the full radiator at the specified width (240–960 mm) at ΔT=50°C (water at 75°C, ambient at 20°C). Total output scales proportionally with width selection.
Flexible Connections:
Available with bottom connection, central connection, single tube connection, and custom configurations for any installation requirement.
Fully Modular Concept:
Order any width from 240 mm to 960 mm. Inter-axis measurement: 1850 mm. Professional round collectors Ø25 mm ensure excellent structural performance and reliability.
Pressure & Temperature:
Max operating pressure: 8 bar · Test pressure: 12 bar · Max temperature: 95 °C
Finishes:
Epoxy powder coating. Standard color: White RAL 9010 and all RAL/NCS options. Custom finishes available upon request.
Availability:
Heights from 400 mm to 2400 mm. Widths customizable from 240 mm to 960 mm. Designer contemporary styling suitable for the most discerning projects.
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