Think X

Geothermal distribution shaft – the new standard with GN X

One Chamber. All Load Classes.

The GN X is the world’s only rotated geothermal chamber with a design life of 50 years – and the new standard for geothermal chambers.

It replaces heavy, expensive pipe winding and concrete chambers –
with an intelligent, powerful, and economical system.

For greater certainty in your planning.

Why make things complicated when they can be simpler?

Traditional pipe winding and concrete chambers are heavy, expensive, and complex in terms of planning, logistics, and installation. Long delivery times, high transport costs, and limited flexibility make them a cost driver in modern geothermal projects.

Requirements are increasing—but the solutions remain the same.

The GN X thinks ahead.

With the X series, GNV has developed a geothermal chamber that combines technical excellence with maximum cost-effectiveness. The GN X reduces complexity and lowers costs while increasing safety and performance.

A chamber that completely replaces pipe winding and concrete chambers.

Reducing complexity. Building the future.

Technology that impresses – in every load class

eStatic load capacity for up to 40 tons of traffic – calculated for 50 years: Safe for use in high-stress areas

Load classes A15 to D400: Even in unfavorable conditions

Buoyancy control in the event of standing water
Optional load distribution plate

Up to 100 probe circuits
Maximum system capacity in one chamber

750 mm telescope
Flexible adaptation to any installation situation

Extremely low installation depth
Only 1.69 m to 2.09 m – less excavation, less effort

As a high-performance geothermal manifold chamber, the GN X is suitable for demanding projects in the private, commercial, and municipal sectors. The GN X can be used both as a geothermal manifold chamber and as a central distributor for multiple probe circuits.

More performance. Lower costs.

The GN X is not only technically superior—it is also economically sound. With its low weight, reduced installation depth, and rapid availability, it reduces project costs along the entire value chain.

The GN X is an economical alternative to pipe winding chambers, without compromising on structural integrity or safety.

Comparison: GN X series vs. pipe winding and concrete chamber

Criterion	GN X	Pipe Winding Chamber	Concrete Chamber
Purchase Cost	Very low	2 to 4 times more expensive than GN X	4 to 8 times more expensive than GN X
Delivery Time	Available at short notice	With lead time (2 to 6 weeks)	Very long
Weight	Extremely lightweight	Heavy (3 to 6 times compared to GN X)	Very heavy (10 to 20 times compared to GN X)
Transport Effort	Minimal (easy handling)	Complex	Extremely complex
Installation Effort	Fast & straightforward	Increased effort	Very high effort
Installation Depth	1.69 – 2.09 m	Identical to GN X	Very low
On-site Flexibility	750 mm telescopic adjustment	Limited	Virtually none
Load Classes	A15 to D400	A15 to D400	A15 to D400
Buoyancy Protection	Integrated / optional	Optional	Not required
Planning Effort	Reduced (system solution)	High	Very high
Total Project Cost	Low	High	Very high
Cost Efficiency	★★★★★	★★☆☆☆	★☆☆☆☆

Designed for professionals. Made for real construction sites.

PLANNERS & ENGINEERS

Tested structural analysis
Clear load classes
Detailed installation instructions

ENGINEERING & INSTALLERS

Easy installation
Less handling
Variable installation situations

PROJECT DEVELOPERS & BUILDERS

Reduced overall costs
Less risk
Faster implementation

The GN X is more than just a chamber. It represents a new way of thinking - more efficient, more intelligent, and consistently focused on practical application.

Ready for the new standard?

GN X1

2 to 34-port manifold chamber

GN X3

2 to 72-port manifold chamber

GN X2

2 to 62-port manifold chamber

GN X4

2 to 100-port manifold chamber

GN X Geothermal manifold chamber

The GN X is an innovative geothermal manifold chamber that sets new standards in geothermal energy. Developed for modern geothermal systems, it combines maximum technical performance with clear economic advantages. As the world’s only rotated geothermal chamber made of plastic with a type static design for 50 years, the GN X is the new standard for demanding geothermal projects.

Compared to traditional solutions, the GN X is a powerful and cost-effective alternative to pipe winding and concrete chambers. While concrete and pipe winding chambers incur high project costs due to their heavy weight, long delivery times, and complex installation, the GN X impresses with its low weight, short delivery times, and significantly simplified installation. This allows for a sustainable reduction in transport, installation, and planning costs.

As a modern geothermal distribution chamber, the GN X is suitable for both smaller systems and large projects with many probe circuits. The chamber can be used flexibly as a geothermal collection chamber or central distributor and allows up to 100 probe circuits to be connected in one system. Thanks to its low installation depth of only 1.69 m to 2.09 m, excavation is minimized and installation is considerably simplified.

Another key advantage is its high load-bearing capacity. The GN X is suitable for use as a geothermal chmaber and is designed for load classes A15, B125, and D400. This makes it ideal for traffic areas, access roads, and industrial applications. The integrated buoyancy control also ensures maximum safety in the event of groundwater.

As a distribution chamber for geothermal energy, the GN X not only reduces technical complexity, but also increases planning reliability. Many planners and builders therefore make a conscious decision to replace the classic pipe winding chamber or concrete chamber. A geothermal chamber made of plastic instead of concrete offers clear advantages in terms of cost-effectiveness, handling, and long-term use.

The GN X is therefore a future-proof geothermal chamber that combines maximum technical performance, tested statics, and economic efficiency in one system.