application_number US 8031308 A description with attention to fig1 a system diagram is shown to the present novel and inventive heating system 2 the system 2 includes a boiler furnace 4 that can be fired with a variety of combustible fuels e g wood coal oil gas byproducts and other organic biomass materials the fuel is burned in an associated burn chamber s and heat energy is released and absorbed into a liquid heat transfer media e g water water glycol mixture etc circulated through an associated closed loop heat exchanger system 4 the heat exchanger 4 is located in close thermal transfer proximity to the burn chamber s and most typically surrounds all or a portion of the burn chamber s the combustion heat is transferred to the liquid media and the media is circulated from the internal or external heat exchanger 4 to a conduit radiator system 5 that directs the liquid about the heated premises the heat exchanger 4 can include internal exhaust conduits not shown that channel the smoke within or about the burn chamber to an associated chimney or flue 6 the conduits can be located in the burn chamber or in the heat exchanger 4 but are.