[alank]

What's the best insulation to use in the back of van?
I'm collecting an l200 on Tuesday to use for work it's double cab with truckman canopy (unglazed type) before I rig it out with all my tank and equipment I want to insulate it out ready for winter so any ideas on the best stuff to use?
I have an immersion fitted in the tank to keep frost out but obviously want to keep the back of van warm for as long as possible.

[The Jester of Wibbly]

https://www.diy.com/departments/thermall-reflective-insulation-7500mm-600mm-4mm/940936_BQ.prd

https://www.screwfix.com/p/ybs-airtec-reflective-double-insulation-1-2-x-25m/6520P?tc=KB6&ds_kid=92700034758222624&ds_rl=1245250&ds_rl=1249481&gclid=Cj0KCQjwidPcBRCGARIsALM--ePtaOVm6-YYGEmhss01XGgCxCFd-Q970ppRXcqLKHw8UAqvZNSDpqYaAhChEALw_wcB&gclsrc=aw.ds&dclid=CKTF9P3mrd0CFYt00wod1AUJ4A

[windowswashed]

https://www.diy.com/departments/thermall-reflective-insulation-7500mm-600mm-4mm/940936_BQ.prd

https://www.screwfix.com/p/ybs-airtec-reflective-double-insulation-1-2-x-25m/6520P?tc=KB6&ds_kid=92700034758222624&ds_rl=1245250&ds_rl=1249481&gclid=Cj0KCQjwidPcBRCGARIsALM--ePtaOVm6-YYGEmhss01XGgCxCFd-Q970ppRXcqLKHw8UAqvZNSDpqYaAhChEALw_wcB&gclsrc=aw.ds&dclid=CKTF9P3mrd0CFYt00wod1AUJ4A

That works best if it's applied to the ply lining rather than just put straight against the metal panels so the camper world would have everyone believe

[alank]

I will be applying it to plastic load liner and the inside of the fiberglass canopy and this time take my time doing it so as not to make a crap job of it thanks.