My aunt's heating system has been having issues ever since a Westwood de-aerator was installed only on the main furnace supply to the Riello.... The system has a 1,000 gal inground tank that is a fair distance from the boiler room....
What happens is that when the oil tank gets to about half empty, suddenly the hot water heater's oil burner has difficulty staying on....
I am attaching photos so you can see the system...
The oil supply line runs to the main furnace and before the de-aerator it feeds off to the hot water heater (see photo). The return line is currently only being used as a return for the Bock hot water heater burner. All summer when just the hot water heater was running there were no problems.... and if there is more than half a tank of oil there is no problem, but the hot water burner's pump seems to have vast difficulty getting the lift and suction to pull in the oil once the tank goes below half full.
Could there be a problem with the de-aerator sending air back that instead goes in the supply line to the hot water oil burner?
Could the hot water burner pump be just too weak in comparison to the de-aerator's effect when it is running and thus causes a drop in supply pressure at the hot water burner and it cuts out?
The screen of the pump has not been cleaned -- whether it is clogged or just getting weak, changing it with a new unit would resolve any issue there, but perhaps it should have a stronger pump instead?
It just seems to me when I look at the system that was installed that it is imbalanced on the supplyline between the two burners.... one is probably pulling oil much stronger than the other... right now the tank has 510 gallons in it so it is about to experience this problem yet again, and I would like to resolve it before having to add more oil as this is crazy....
What happens is that when the oil tank gets to about half empty, suddenly the hot water heater's oil burner has difficulty staying on....
I am attaching photos so you can see the system...
The oil supply line runs to the main furnace and before the de-aerator it feeds off to the hot water heater (see photo). The return line is currently only being used as a return for the Bock hot water heater burner. All summer when just the hot water heater was running there were no problems.... and if there is more than half a tank of oil there is no problem, but the hot water burner's pump seems to have vast difficulty getting the lift and suction to pull in the oil once the tank goes below half full.
Could there be a problem with the de-aerator sending air back that instead goes in the supply line to the hot water oil burner?
Could the hot water burner pump be just too weak in comparison to the de-aerator's effect when it is running and thus causes a drop in supply pressure at the hot water burner and it cuts out?
The screen of the pump has not been cleaned -- whether it is clogged or just getting weak, changing it with a new unit would resolve any issue there, but perhaps it should have a stronger pump instead?
It just seems to me when I look at the system that was installed that it is imbalanced on the supplyline between the two burners.... one is probably pulling oil much stronger than the other... right now the tank has 510 gallons in it so it is about to experience this problem yet again, and I would like to resolve it before having to add more oil as this is crazy....
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