Perhaps you can help me with this fuel problem. I want to have a separate tank for the furnace, fed mostly automatically from the return line from the engine. The static pressure at the furnace fuel pump must be negative relative to atmospheric pressure. This means the furnace must suck fuel which means that the furnace supply tank must be below the level of the furnace. The return line from the Lehman passes above the furnace level and near it on its way back to the top of the main tank. It seems an easy idea to drop a fill line from a T in the return line to fill the furnace tank. The furnace tank would have a separate vent line which terminated above the return line. The furnace tank fill line would have to have a small automatic valve operated by a float which would shut off furnace fill line when the tank got close to full. Does anyone know of a commercial fitting that would do this and could be fitted to the furnace tank. What sayeth the list? Richard

> The furnace tank fill line would have to have a small > automatic valve operated by a float > which would shut off furnace fill line when the tank got > close to full. Does anyone know of > a commercial fitting that would do this and could be fitted > to the furnace tank. Richard, our diesel stove uses a valve much like you are wanting to use. It is attached to a hose or pipe both coming into and out of it and could possibly be used in your application. If no better idea comes along, this might work for you. Available through Dickson or maybe it is spelled Dickenson. Rudy Briney Bug, Panama City, Fl

My installation is simple. The return line of the main engine goes in the fuel tank of the furnace. Then, 2 inches from the top of the tank, an other line goes back to the main fuel tank. No valves, no electronic, simple and reliable. Sylvain Sirois http://www.plongeess.com > > > The furnace tank fill line would have to have a small > > automatic valve operated by a float > > which would shut off furnace fill line when the tank got > > close to full. Does anyone know of > > a commercial fitting that would do this and could be fitted > > to the furnace tank.