{"pageUrl":"https://www.vheatc.site/how-to-find-your-vaillant-heat-pump-model-number","title":"How to find your Vaillant heat pump model number","lastModified":"2026-05-22","claims":[{"id":"plate-location","statement":"Vaillant heat pumps carry a data plate listing the model designation and serial number on the unit.","source":"Vaillant product documentation","hash":"sha256:a05413aca77b8cff935e8200656cbac75255f96c486c3345753468d712965afe"},{"id":"code-prefixes","statement":"Vaillant heat pump model codes begin with VWL for air-source units and VWF for certain ground-source units.","source":"Vaillant model designation conventions","hash":"sha256:03eaad058853380a6e0c53a9f8ed7dc3f14b70a72177d5dd8acb77f9526790f8"}]}