Hooking up a backup oil burner to Tarm with storage

I've successfully plumbed in my Tarm Solo 40 with storage into my heating system. I'm now in the process of hooking an oil fired boiler into it as a backup. I'm wondering if there is any need to add a circulator into the output of the oil boiler or is the circulator for the zone sufficient. Here is a crude diagram of the supply side plumbing with the circulator in question marked with ???




Oil Boiler Manifold Storage Wood Boiler

| | | | | | | | |
| (^)(^)(^)(^)(^)(^) | |
| | | | | | | | |
| --------------------------------<--------(<)-------------------X----------
| |
| |
|----------------(>)----------------&gt;--------
???



Where: (^) & (<) & (>) are circulators in the direction of the arrow
< & > are weighted check valves in the direction of the arrow
X are zone valves