This product is an Eberspacher S3 D2L heater and fuel pump only. For a new install you will need a complete air heater install kit. If you are considering an Eberspacher air heater for your Peugeot Boxer and assuming it is a diesel 12v, we would recommend the Airtronic S3 D2L heater and install kit found at https://www.butlertechnik.com/item/Eberspacher/Espar-RV-Diesel-Heater-Airtronic-S3-D2-L-inc-Easy-Start-Pro-12v-22kW-7500BTU/BMY
Unless you are travelling to high altitudes this Webasto air heater this kit would be suitable for your needs and is not £3000.00
https://www.butlertechnik.com/item/Webasto/Air-Top-2000-STC-2kW-Single-Outlet-diesel-heater-and-install-kit-12v/60H
To install you should have some knowledge of electrics and fuel systems. If you are unsure installation instuctions can be found at https://www.butlertechnik.com/downloads/cms/eberspacher-espar-airtronic-s3-d2l-b2l-technical-description-manual.pdf
As a customer of Butler Technik you will also have access to our technical department if you require assistance.
If you could let us know the year model of your Peugeot Boxer we can recommend a fuel pick up kit. Our support team would be happy to assist if you have any further questions or require a bespoke heater kit for your motorhome please email sales@butlertechnik.com