Installed the Espar Airtronic B4L (petrol) version.
At first I had planned to install a Webasto 2000 but the one I purchased had several parts missing so I returned the whole unit. That gave me time to do more research and I realized that I would need more B2U’s in my high roof Ford Transit so I went with the larger Espar heater. It has been great!
It was not easy to drill a 5 inch whole in my nice 3/4 floor. But the Espar heater has been one of the most valuable additions to the van besides the electrical system.