Best Of
Re: Deviating from specification on head position.
^^^Exactly that ^^^
Interesting story: During the second oil crisis (First 1974 Second 1978) I was a full time oil burner service technician at the F P Young Co. in Philadelphia during the Carter administration. Following the Nixon administration the Department of Energy was formed in 1977 in order to study ways to conserve energy. Frank Young was very interested in all that was going on in the government regulations that were being imposed on fuel oil dealers and got involved with different committees in order to be the voice of the fuel oil retailer.
As part of the way F P Young Co. did business with their customers we had a program where we would evaluate the old coal conversion boilers and furnaces to determine if there was any way that our customers could reduce their fuel usage. I know this sounds counterproductive, but having a customer that burns less oil made for a happy customer and also kept those customers from converting to Natural Gas. "Less fuel oil sold is better than no fuel oil sold".
Since we were already in the business of selling more efficient oil burners to reduce our customers fuel oil consumption, the F P Young Co. had something that the government was interested in offering to ALL the fuel dealers. Modernize the old boilers and furnaces and retain customers, and that will reduce the US dependence on foreign oil. As part of that program the F P Young Co hosted a government committee that was composed of some top engineers in the business, to witness an actual “Modernization” of a coal converted boiler with a 1940s oil burner. All the engineers were contributing to the specifications for the actual job (that usually took 4 hours) in order to get detailed notes on the specifications to make the old converted coal boiler to operate in the 80% Combustion Efficiency range. It was approaching the 8 hour mark, The manufacturer's specifications in the I/O manual on how to adjust the burner were not producing the expected results. The F P Young technician who was actually doing all the work under the guidance of the committee of engineers was interested in going home as it was at the end of his work day.
Bob was his name and I recall this story; where he was just about at the end of his patience for this “installation by committee” and told all the PhD and Masters degree heads to step aside and learn something. This Vietnam veteran who had a high school diploma and was just a blue collar working stiff needed to show all the brainiacs “how it is done in the real world.” and took over the Carlin burner adjustments. His experience of doing over 200 different modernizations in his time with the company allowed him to use the best nozzle, oil pressure, and burner air adjustments that made the burner operate quiet, zero smoke and about 81% combustion efficiency. And one of those adjustments was to move the nozzle assembly 2 notched foreword of the factory specified setting for the firing rate being used.
That was back when we were all using wet bottle kits for checking Carbon-dioxide percentage and a stack thermometer for the temperature and a slide rule calculator to look up the combustion efficiency. I do recall that there was one “Lynn Analyzer” that plugged into a 110 V. outlet to electronically tell you the stack temperature and the oxygen content in real time as the adjustments were made. The first electronic combustion analyzer all the way back in the 1970s WOW!
Re: Pick Up Factor- AGAIN
@GW that would work I am sure they can get you the larger burner before it gets really cold.
Re: Pick Up Factor- AGAIN
The smaller boiler will be happier than the one with the 30% pickup factor. It will better match the amount of steam the system can consume and will shut off less on pressure if at all.
include fixing the vents in your project.
Re: Pick Up Factor- AGAIN
If you really want to know, you can estimate the amount of different sizes of pipe and figure the edr of that, i suspect you will find it is more like 10%, not 30%
Re: New NYC steam radiator inspection law - what does it mean?
Each building has a superintendent. They can do what @ARobertson13 does.
Re: Low water cutoff not working after cleaning pigtail
it isn't so much it is used as a junction box but that the end switch on the damper is tied in series with the pressuretrol
Re: New NYC steam radiator inspection law - what does it mean?
And just for the record, I am the safety nut of my family. Was going on an outing with extended family. One adult family member refused to buckle their seat belts. While I was the driver. I refuse to drive without that family member buckled in. He refused and got out of the the vehicle and did not talk to me for many months afterwards.
Re: Groundwater (possibly high) and adding thin radiant slab over existing uninsulated slab, below grade
The problem with high water table, but below your slab (which it sounds like it is) is that saturated soil is a wonderful conductor of heat — and it's even worse if the water is moving (it may not be in your case).
However — it's easy enough to avoid the problem: insulation. You mention insulation in your original post — and that's your answer. As much of it — at least two inches, maybe four to six if you can lose the headroom.
Re: Groundwater (possibly high) and adding thin radiant slab over existing uninsulated slab, below grade
yeah, without testing we are all guessing.
A bore in the slab is not a bad idea Home Depot rents up to 5” or so core drills
Have you done any Radon testing? High levels are fairly common in basements in my SLC Utah area
That would involve some core in the slab to mitigate, it would be a good time to check that
If the unknowns are too great, panel radiators get you about the same comfort and you don’t deal with all the slab and elevation change issues
hot_rod
Re: Couple of recent boiler installation
No wonder we haven't seen you on here for a while. Nice work!
Did you get any of these jobs from recommendations here?



