Van's own system uses LPG from the underslung tank and electric from batteries.EHU just uses electric from house which I don't have to replace
but wouldn't the battery replenish from the EHU?
Yes,EHU replenishes my batteries (so do my solar panels)
Ah, now I understand. Ours runs on elec OR gas OR a combination, so we aren't using any gas when on EHU.
oopsburnt out water pump