Oil questions old timers (and those old at heart)

J.C.A._3

When checking Oil Tech Talk, check into the section called "Just for Techs"(teks)

The late John Gates saved and transfered a lot of information on older and still funnctional equipment for OTT and Alan to archive.
Like Dan always says...it pays to wander off the topics of all sites. Chris

Bear

Two oil questions...

1st) Do any of the gang know a formula I can use to calculate the BTUH rating change when the pump supply pressure is above or below the 100 PSI nominal common in residential heating and boilers?

2nd) I'm just moving into a house with a twenty-plus year old vented oil console heater using a carburated burner. I haven't had a chance to fire the unit yet (waiting on a #2 delivery), but a visual shows the burner to be very clean and the flue connections are in great shape. Anybody work on this style of unit and can you offer any suggestions on firing for the best efficiency, maintenance and checks needed. I've been in the industry for about 13 years now, but every company I've ever worked for has refused carb burner work, due to liability issues.

Thanks in advance for all the help.

Bear

David Sutton_6

Try oiltechtalk.com its a great site to get those questions taken care of...David

Edward A. (Ed) Carery

Pump Pressure change

Question #1,

Here is the formula to calculate a GPH quantity at a different pressure

1) Divide new pressure by 100 PSI
exp: 140-100= 1.4

2) Obtain square root
exp: 1.1832159

3) Multiply result by nozzle size at 100 PSI
exp 1.183 x 1.000 = 1.18 GPH


Question #2,

You probably have an old Lear Seigler or similar. I worked on them MANY years ago. I would not trust the carb on that old of a unit. Even if it is in good shape now, it is time to consider something newer and more serviceable. JMHO

Ed Carey

T-RACY

BETTER USE K1 NOT 2 OIL.BEST NOT TO USE THAT AT ALL IF YOU NCAN HELP IT....

Alan R. Mercurio_3

And if I may add to the information Ed has given you. Once you determine the new flow rate you would multiply that by 140,000 BTU

In Ed’s example he showed us how to arrive at 1.18 GPH
So, 1.18 gph x 140,000 btu = 165,000 btu aprox.

And if this will make things a little easier on you. here’s a sneak peak at the kind of things that will soon be available in the online toolbox at Oil Tech Talk

Nozzle Flow Rate Calculator


Your friend in the industry,
Alan R. Mercurio

www.oiltechtalk.com

Bear

Wish I Could T-Racy...

It's a rental and the owners won't even flip for a chimney inspection - I've added extra CO and ion fire alarms and have updated my renter's insurance, just in case...
thanks for everything, gang!

Steve_35

Flow Rate Conversion

> 1st) Do any of the gang know a formula I can use

> to calculate the BTUH rating change when the pump

> supply pressure is above or below the 100 PSI

> nominal common in residential heating and

> boilers?


Here's a little Excel program I made to play with flow rate conversions.


Nozzle Flow Rate Conversion