The ecoTEC plus 938 is a 38kW high efficiency combination boiler with storage which has been designed especially for bigger homes which have a large hot water demand.

Benefiting from the same high quality performance and efficiency levels you’d expect from a Vaillant combination boiler, the ecoTEC plus 938 also features an innovative integrated hot water storage device at the back of the boiler. This special feature means the product is capable of delivering up to 20 litres of hot water per minute (significantly more than could be delivered by a traditional combination boiler), without the need for you to install a separate hot water cylinder or cold water tank in the loft.


The ecoTEC 938 has many welcoming benefits and demonstrates innovative heating technology such as:

  • The ecoTEC 938 is an innovative solution for large 3-4 bedroom properties with more than 2 bathrooms.
  • When considering installing a combination boiler it’s important to note that the larger the (kW) output you select, the greater the hot water delivery will be.
  • The installation of a Vaillant ecoTEC 938 typically takes between 1-2 days, however some time should be allocated for systems where radiators and pipe work need replacing.
  • With an ecoTEC 938 boiler you will receive a 5 year guarantee as standard or extended guarantees if you choose to have a Vaillant Advance installer perform the work.
  • Highly efficient and economical to run with an 89.4% efficiency rating (SAP 2009)
  • Contoured case and improved control panel design make this compact storage boiler a perfect fit in any home


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