The two copper fuel pickup tubes in each tank, the tee connecting them and the fuel line from the tee to the heating appliance together form a “closed siphon”. When the fuel line is completely purged of air which is the case in normal system operation, the two tanks are connected by a “capillary” filled with an uninterrupted column of liquid. If there is a situation where there is more liquid in one tank than the other, the differential in head pressure (weight of the liquid) between the two tanks will cause the liquid to flow through the “capillary” from the tank with the higher liquid level toward the tank with the lower liquid level. This transfer will continue until the head pressure at the bottom of the pickup tubes is the same at which time the level in both tanks will be the same. As soon as a bubble of air leaks into the closed siphon loop or the tip of one of the pickup tubes is exposed to air, the process stops.
In a low or empty steel tank as the fuel level drops down, the displaced volume in the tank is replaced by moist/wet air from outside the building via the fill and vent pipes. This process introduces humidity and moisture into the tanks. Best to keep your tank full in the summer especially, even if it is not in use.
You say for a couple bucks more in the video. My 275 gallon tank was $475 last year. You’re DWT275LH is $1,721.10. That’s more than a couple of dollars for the same capacity.
-Steel tanks meant to last about 15 years? -The new corrosive additives used in heating oil are shaving years off their lives? -In reality you may have just 10 years before you worry about a replacement? WTF does that mean? Tanks only last 15 years? Now oil rots metal? I should start to worry about my oil tank if it's 10 years old? I have a tank in my house that's almost 70 years old with no leaks. I have never seen oil rot metal no matter what additives were in there.... and what I think I need to really worry about is all this fear mongering sales pitch bullshit.
it very well may be true. Especially with tanks that are newer because in inferior quality metal from china and cheap manufacturing. If your in the industry you see some of the messed up shit. Also they said additives are destroying the tank not the fuel but maybe its the additives reacting with condensation that occurs during temperature changes thats doing the most damage.
I am getting my new ROTH tank this month! They seem to be well constructed. And just look @ the warranty.
2:03 How does the dual tank setup equalize as the fuel is pulled from one tank if all the lines are up top?
The two copper fuel pickup tubes in each tank, the tee connecting them and the fuel line from the tee to the heating appliance together form a “closed siphon”. When the fuel line is completely purged of air which is the case in normal system operation, the two tanks are connected by a “capillary” filled with an uninterrupted column of liquid. If there is a situation where there is more liquid in one tank than the other, the differential in head pressure (weight of the liquid) between the two tanks will cause the liquid to flow through the “capillary” from the tank with the higher liquid level toward the tank with the lower liquid level. This transfer will continue until the head pressure at the bottom of the pickup tubes is the same at which time the level in both tanks will be the same. As soon as a bubble of air leaks into the closed siphon loop or the tip of one of the pickup tubes is exposed to air, the process stops.
In a low or empty steel tank as the fuel level drops down, the displaced volume in the tank is replaced by moist/wet air from outside the building via the fill and vent pipes. This process introduces humidity and moisture into the tanks. Best to keep your tank full in the summer especially, even if it is not in use.
You say for a couple bucks more in the video. My 275 gallon tank was $475 last year. You’re DWT275LH is $1,721.10. That’s more than a couple of dollars for the same capacity.
They tank up less space 😋
-Steel tanks meant to last about 15 years?
-The new corrosive additives used in heating oil are shaving years off their lives?
-In reality you may have just 10 years before you worry about a replacement?
WTF does that mean? Tanks only last 15 years? Now oil rots metal? I should start to worry about my oil tank if it's 10 years old? I have a tank in my house that's almost 70 years old with no leaks. I have never seen oil rot metal no matter what additives were in there.... and what I think I need to really worry about is all this fear mongering sales pitch bullshit.
corrosion is probably the only reason for replacing a tank you dumbass
Trump 2016 FTW I agree. Bad video.
it very well may be true. Especially with tanks that are newer because in inferior quality metal from china and cheap manufacturing. If your in the industry you see some of the messed up shit. Also they said additives are destroying the tank not the fuel but maybe its the additives reacting with condensation that occurs during temperature changes thats doing the most damage.