will this work

[jesijoe]

hi new to forums so ihope i dont mess this up- here goes
in the attached is a(rough) drawing of a dual ch system.the house is about 1800 sq ftand about 50 ft long with hot press in the middle. the boiler is pretty big 120000btu output the bb hasnot been sized yet(but mid to large size i expect)
i want this system as simple as possible so its a tmeclock for oilside and pipestat for bb with on off valves for hot water and heating
Have i missed anything ?
is there any fatal flaws?
do i need a seperate f+e for th oil side?
could i bring the bb f+e into the hot press or leave it where it is?
would the feed from bb be better going thru attic (its a bungalow -no upstairs only attic)and drop into hot press(for gravity reasons if power goes)?
wold atowel rail be large enough for a heat sink?
hop i havnt forgot anything
any of your comments/suggestions/improvements would be greatly appreciated