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Riello on Buderus Problem
Hello from Beantown, Walligans!
I have installed many Buderus/Riello packaged boilers over the years and they are my boiler/burner of choice. I usually install them and forget about them until they need their anual service.
However I have this one G215-4 oil boiler that I installed a few years ago that is driving me Nutz! When the unit doesn't run for a long time it loses its prime.
It is connected via a single pipe to a Roth tank (about 6' run, tank is outside), has a spin and grin type filter adjacent to the boiler. I have already replaced the flexible suction line inside the Roth tank with ridgid pipe. The fuel pump pressure and suction are fine and the unit runs great until a warm day when it doesn't come on as often.
I am thinking of running a return oil line back to the tank from the fuel pump. I have always run single oil pipe systems and never had a problem in twenty years other than this one.
Has anyone else had this problem? Any constructive thoughts and comments are greatly appreciated