A Froling FHG50 with a 1600 gal storage tank is installed in its own small building a very short distance to the 5000 sq ft building it heats with water/forced air hxs. The 5000 sq ft building has two bedrooms heated by hot water baseboard supplied by the Froling. There is no hot air duct work to these two bedrooms. The two bedrooms are immediately adjacent to the boiler building. They need more heat than the installed baseboard can provide. The boiler building stays very warm from heat thrown off from the Froling and insulated storage tank. I'm looking for ideas to capture that excess heat in the boiler building and move it to the two bedrooms. Would it make any sense to install an air source heat pump in the boiler building to do that? Other ideas? More baseboard would solve the need for more heat but would not use the excess heat from the boiler building which already is available. The picture shows the boiler building before the Froling was installed in it.