Oil Tank

LDR

I need to replace my Steel 275 Gallon Oil Tank. I found a used Roth Oil Tank for my basement. Any concerns or considerations I should be aware of ? Are there special fittings or something for the Roth Oil Tank ? Or can I pipe it myself ? Just use the existing fill pipe leading from outside of the house to the top of the present tank located inside ? The vent pipe that has that whistle seems wrong. The vent pipe of present tank is 1 1/4 inches. I say the vent pipe seems wrong because it doesn't match the fill pipe. The fill pipe looks to be 2 inches, not positive. But the fill pipe fits the opening in the top of the steel tank. I believe it is 2 inches. If I get the used Roth Oil Tank and when I am installing it, should the vent pipe size on the tank match the fill pipe size ? Do I reuse the round threaded plug from the top of my present tank that has the two copper fuel lines ? Will this threaded plug from old fuel tank just screw into the female hole on the Roth Oil Tank ? My Oil Burner is a two pipe system. Supply and return.

Thanks for all your help

EdTheHeaterMan

Any second hand tank will have problems since there have been tank bottom deposits building up from the first delivery all the way to the last delivery.  How old is the tank?  What is the condition of the outer steel tank?  Is there stuff other than oil in the bottom of the tank?

The thing about steel tanks is that they rot and rust away from the inside as well as from the outside, so you really can't tell the condition without expensive testing which makes a new tank less expensive than testing an old tank.  With the plastic inner liner of the Roth tank I would feel more comfortable with using that for a good long time if it is in good condition. 

I would just take the time to thoroughly clean the junk out of the bottom of that tank.  That would involve about 40 gallons of clean oil and a pump with a garden hose spray nozzle on the end of the pump’s discharge hose.  Then I would take 10 gallons of oil and wash the bottom like I was spraying off the driveway with your garden hose.  After that was done I then empty that oil and take 10 gallons of clean oil and repeat.  Then another 10 gallons and repeat.  By the time you get to 40 gallons you should have a clean tank.  You need to suck out as much of the dirty oil from the tank as you can each time before adding clean oil for the nest wash. 

The Roth Tank has special fittings on the top and they convert to standard 2” pipe thread for easy connecting to the fill and vent pipe, vent alarm and the top feed fittings.  

Other than that, you just make sure it is on a flat level surface in your basement and install it like you would install an oil tank according to the code.  It is a tank full of combustible liquid in your basement, you know.   Do it right or don't do it at all.

EdTheHeaterMan

Here is the instructions that come with the new Roth Tank. Roth DWT Plus 3

Here is the parts list if you are missing anything Roth DWT Catalog

EBEBRATT-Ed

@LDR as far as the Fill and vent pipes they can both be 1 1/4, or 1 1/2 or 2" but they have to be the same size.

In some locations in the old days the fill was 2" and the vent 1 1/4" but they changed that many years ago.

LDR

Thank you Ed the Heater Man

Thank you EBERATT-Ed