question on oil furnace burners

karen_10

One, Id like to thank the board for helping us find qualified professionals in Fairfield county. We would also like to go with Thermo Pride.

Next, a new dilemma. Our small heat load suggests a burner with a .5 (or smaller if Riello) nozzle, but we are worried about blockage/filter problems - one installer cautioned us to oversize to avoid these problems - have you experienced problems with smaller nozzle size in terms of maintenance/service interruptions vs larger sizes (eg. .50 vs .65 or .75). If so, what kind of problems at what frequency can we expect. Any gruesome or happy tales would be of help in getting us comfortable with the anecdotal evidence pro or con....

thanks again,

karen

Steamhead (in transit)

With the proper oil filtration

they should work OK. Most recommend that the oil flow first thru a standard filter like a General 1A-25A or similar, and after that a low-micron unit such as a Gar-Ber.

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Ron Schroeder

It's pretty hard to find a nozzle smaller than .5gph. The smallest nozzle that I have used that would make it thru a season when the oil is double filtered with a General 1A-25A at the tank and a Gar-Ber at the burner was a .4gph.

The Delavan Del-O-Flo nozzles seem to handle contaminants the best of all of the nozzles I have tried at low firing rates.

I find the first filter housing will work just about as well without an element as it will with an element since the crud tends to fall to the bottom.

If you are using a boiler, the problems of short cycling with oversizing can be eliminated by using a buffer tank. If you are using a furnace, oversizing will cause more temperature variations.