Energy Blade unit being pressure tested

Energy Blades

Stainless steel heat collector systems designed to extract renewable thermal energy from lakes, rivers and ponds for heat pump applications.

  • Heat Collection
  • Stainless Steel 
  • Heat Pump Compatible
  • Lakes, Rivers & Ponds
  • Standing or Mounted
  • Made in Britain
Application
Freshwater Heat Collection
Water Sources
Lakes / Rivers / Ponds
System Use
Heat Pump Applications
Configuration
Standard or Bespoke
Construction
Stainless Steel

Freshwater Heat Collectors for Renewable Heating

Fabdec Group’s Energy Blades use the natural thermal energy in lakes, rivers and ponds to support ground source heat pump systems. By drawing from abundant freshwater energy, the system provides a renewable heat source for year-round heating while helping reduce reliance on fossil fuels.

Installation is designed to be flexible. Units can stand on a solid base or be hidden beneath jetties, landing stages or bridges, with pipework discreetly landscaped where required. This makes Energy Blades suitable for homes, businesses, communities and organisations looking for a clean, reliable and future-proof heating solution.

Energy Blade unit being pressure tested

Heat Transfer Performance & Technical Specifications

SPAR-HEAT refrigeration circuit
Water Conditions Heat Transfer
Still water 8kW
Moderate flow 15kW
Fast flow 20kW

All performance and specification data shown is based on a standard 4-plate array configuration. Alternative configurations are available depending on system requirements. Nominal flow rate is based on standard system conditions and can be adjusted to suit system design and heat pump integration.

Item Specification
Plate configuration 4-plate array
Air vent fittings 3/8" Female BSP
Array volume (approx.) 35 litres
Array height 604mm
Array width 785mm
Blade dimensions 3,000mm × 492mm
Empty weight 85kg
Manifold fittings 1 1/2" Male BSP
Material Stainless steel 304-2B
Nominal flow rate 1.2 litres/second
Pressure loss at design flow 25kPa, 25% propylene glycol

Why Choose Energy Blades?

Energy Blades provide a practical way to use freshwater sources as part of a renewable heating system. By collecting thermal energy from lakes, rivers or ponds, the system can support heat pump performance while making use of an existing natural water source.

The stainless steel construction provides long-term durability in demanding submerged environments. This makes Energy Blades suitable for projects where reliability, corrosion resistance and low-maintenance heat collection are important.

With free-standing and mounted installation options, Energy Blades can be configured around the site layout. Standard four-plate assemblies are available, while bespoke sizes can be reviewed where a project requires a different arrangement.

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CONTACT US
If you’re looking to reduce operating costs, improve hygiene, and enhance sustainability, reaching out to Fabdec Group is a smart strategic move. Based in Ellesmere, Shropshire—and with an additional European office in Gelsenkirchen, Germany—Fabdec is recognised as a pioneer in stainless-steel thermal solutions, backed by over 60 years of engineering excellence. We design, manufacture and supply an extensive portfolio including energy-efficient milk cooling systems, stainless-steel unvented water heaters, heat recovery units, process vessels, and integrated skid-set systems tailored to dairy, food processing, renewables and HVAC applications. Whether your needs involve bespoke stainless-steel vessels for process engineering, dairy systems to optimise milk handling, or heat recovery solutions to reduce energy consumption, contacting Fabdec via their website or live chat ensures you’re speaking directly with a responsive, customer-focused team committed to high quality and innovation.

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