Can you use existing oil and install HVAC?

[Annie L.]

Sorry for the stupid question but the property has a oil tank and has been heated via baseboard radiators and it has a chimney to allow for outside heat loss. I'm trying to decide if I should demo the chimney for the roof replacement... if we were to demo the chimney, can we still use the existing oil tank for heating the house without the chimney? I'm trying to figure out if we will be shooting ourselves in the foot if we demo the chimney but then find out later that we can't switch to gas or electric heating