The Vaillant ecoTec Plus 415 is a highly efficient and reliable open vent (heat-only) boiler, ideal for traditional heating systems that use a hot water cylinder and cold-water storage tank. With a 15kW output, it is perfectly suited for small to medium-sized homes looking for dependable performance, low running costs, and exceptional build quality.

Engineered with Vaillant’s renowned German precision, the ecoTec Plus 415 offers outstanding efficiency, quiet operation, and long-term reliability—making it a top choice for both homeowners and heating engineers.

Key Features

• 15kW output – ideal for small to medium properties

• ErP A-rated efficiency for reduced gas consumption

• Quiet Mark approved for ultra-quiet operation

• High modulation ratio for improved efficiency and comfort

• Compatible with traditional heating systems with tanks and cylinders

• Aluminium heat exchanger for optimum heat transfer

• Digital user interface with diagnostic support

• Frost protection for safer loft or garage installations

• Compact and lightweight design for easy installation

• Vaillant build quality, trusted across the UK

Ideal For

• Homes with an existing open-vented system

• Properties using a hot water cylinder and loft tanks

• Small to medium homes requiring a 15kW heat-only boiler

• Customers wanting a quiet, efficient, and premium boiler

What’s Included

• Vaillant ecoTec Plus 415 Open Vent Boiler
  (Flue, controls, and accessories sold separately)

Why Choose the ecoTec Plus 415?

This model provides the perfect combination of efficiency, reliability, and quiet running. Built to Vaillant’s premium standards, the ecoTec Plus 415 delivers strong performance while keeping energy bills low—making it an excellent replacement for older heat-only boilers.