Farmer for now I would let circulate thru the boiler since your room is not well insulated. Good insurance to keep from freezing. Tighten up and insulate the room this summer. A member here found an inexpensive high temp controller for the stack temp with a display. This will shut off the Eko when the fire goes out to avoid wasting heat. This winter the flaw in the Eko controller will actually keep your boiler hot for few more hours. Will post that item when I find it. FYI, those with Tarms have a firebox sensor that senses when the fire goes out I believe.