I am getting natural gas brought down my street now. I have been told all i have to do to convert my lp furnace to natural gas is change out the orphases (hope you understand what i tried to spell lol). Is this true? If so how much does a new set of orphases cost?
It all depends on your furnace. You will at least need the natural gas orifices and more than likely a gas valve regulator spring. Before putting the unit into service you will need to have the manifold pressure set as LP is set at a higher pressure.