Solid Fuel Stove - Best way to connect to sealed system.

HI, considering installing a wet solid fuel stove. Existing is have a single coil in-direct cylinder with feed tank in attic, and a sealed central heating oil boiler. To connect the solid fuel would it be best to change the existing central heating circuit to a vented type? Also would I be best tying the solid fuel boiler into the existing coil, or fitting a dual coil cylinder with a thermostatically controlled mototrised valve, that would direct the solid fuel between its own cylinder coil for hot water, then directing it into the oil boiler coil when cylinder is at capacity hot water? so much conflicting advice out there.