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Cascade rigs

Commercial system accessories

  • Offers a more flexible solution to commercial systems
  • Compatible with ecoTEC plus 46 - 120kW
  • Suitable for up to 960kW
  • Compatible with the full range of commercial accessories
Request a quote


Vaillant's precision-engineered cascade rigs offer enhanced efficiency and flexibility on outputs with a higher modulation range compared to a single boiler installation. This easily expandable modular system can provide up to 960kW of energy and can be configured to fit any plant room. Up to eight ecoTEC 46, 65, 80, 100 or 120kW wall-hung boilers can be fitted on a rig back-to-back, in-line or around corners.

Cascade rigs allow Vaillant to offer tailor-made heat output appliances, which can be individually switched off, when not required allowing maintenance of the boiler plant to be a lot easier as single appliances can be serviced during running operation, reducing down-time for the customer.

It is mandatory to install a plate heat exchanger on all ecoTEC 80, 100 and 120kW boilers and highly recommended on all cascade systems. A large range of accessories and flueing options ensure there is a Vaillant cascade solution for every kind of commercial installation.

Related Products

Related Products

ecoTEC plus 80, 100 and 120kW

Commercial wall-hung boilers

  • High quality stainless steel heat exchanger offers more resistance to oxidation, seizing and corrosion
  • Energy saving two-stage frost protection system and pressure sensor to monitor system pressure via diagnostics
  • Full range of accessories available for a complete system solution
  • ErP 'A' rated

Plate heat exchangers

Commercial system accessories

  • Separates system water from the boiler
  • Compatible with ecoTEC plus 48 - 120kW and ecoCRAFT boilers
  • Suitable for cascade rigs and single installations
  • Protects the boiler and provides longevity

ecoTEC plus 46 and 65kW

Light commercial boilers

  • Suitable for domestic and commercial projects
  • High quality stainless steel heat exchanger offers more resistance to oxidation and corrosion
  • All major components built-in for easy installation
  • ErP A rated


How to get

Request a quote

Vaillant Commercial boilers and accessories are available over the counter or as a next day service at most plumbing and heating merchants throughout the UK.

We can provide you with bespoke solutions to accommodate a variety of installations. To discuss your requirements please contact us.