Oil combustion efficiency with DF520?

Oil combustion efficiency with DF520?

PostBy: daluds On: Sat Nov 08, 2008 11:29 pm

I measured about 82.5 percent when I first ran the DF520 with oil. What is typical efficiency expected with the DF520 burning oil? I have to switch to oil when I travel, and interested in knowing what people have measured with the DF520. I brush off the ashes in the boiler before I switch. Is there anything else I should do to optimize the oil burner combustion efficiency when I have to run on oil? Also, I noticed I can not reduce the smoke to zero when running on oil. Best I have been able to achieve is 1 on the smoke test. Is this due to the coal in the pot? Should I cover the pot with a blank of kaowool?

Thanks,

Dave
daluds
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice
Stove/Furnace Make: EMF
Stove/Furnace Model: DF-520

Re: Oil combustion efficiency with DF520?

PostBy: stoker-man On: Sun Nov 09, 2008 7:28 am

The 520 was designed to burn only coal. The oil kit was made as a convenience only. I would have guessed that the efficiency would be in the high 70s. The combustion chamber needs to be significantly reduced to achieve a decent efficiency if you would ever go to 100% oil.

The oil burner should be run for a few minutes, once a month, to flush the nozzle line with fresh oil.
stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove

Re: Oil combustion efficiency with DF520?

PostBy: Pa Dealer On: Sun Nov 09, 2008 9:41 am

"Should I cover the pot with a blank of kaowool?"



Done that it helps
Pa Dealer
 
Stoker Coal Boiler: EFM 520 DF
Coal Size/Type: Rice
Other Heating: Keystoker
Stove/Furnace Make: EFM DF 520
Stove/Furnace Model: Keystoker

Re: Oil combustion efficiency with DF520?

PostBy: Berlin On: Sun Nov 09, 2008 11:21 am

One on the smoke test isn't bad at all, i wouldn't worry about it. I would definatly cover the burn pot with something to reduce any outside air infiltration if that's what you meant.
Berlin
 
Hot Air Coal Stoker Furnace: Will-Burt Combustioneer 77B
Coal Size/Type: Ohio BITUMINOUS pea stoker coal

Re: Oil combustion efficiency with DF520?

PostBy: daluds On: Sun Nov 09, 2008 10:12 pm

Stoker-man,

The oil burner works great. One of the reasons I bought the DF520 is so I can run on oil when I travel, and during the summer when oil prices are low. I'll measure the efficiency again after burning coal for the past few months. I have gone through 1.5 tons so far. Still interested in what other people are measuring for efficiency on oil.

Thanks,

Dave
daluds
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice
Stove/Furnace Make: EMF
Stove/Furnace Model: DF-520