> I am contemplating the same for my rear heater as I don't need two in SE
> Texas. I would not plug feed and return, I would insert a joint of
> copper pipe to complete the loop, otherwise you will be asking to have
> an air bubble in both the plugged feed and plugged return lines. Those
> bubbles (trapped air) would do no good things but have the potential to

Actually your easiest bet, and what I did when my valve croaked and I
was too lazy to care is simply remove the T's from below replace with
I think 3/4" straight connectors and be happy.  Unless of course you
need the heat, which I decided I did not.

John
vwbus@netbiz.net