burner settings

Rick_41

I have several boilers at a property,.two traco and One Weil-Mclain gold,.



The W/M is reading  T. 515    S 0      Co2 11.9     draft (breech) .04



Tr #1                             T 555     S 0    co2    12.4        breech draft   .03



 Tr #2                             T 572     S 0      co2  10.5         draft        .02





I feel that the oil use is high considering we have a lot of insulation and super efficient windows and infiltration leaks checked and sealed via using a blower door,..



I asked my oil guy if we could downsize the nozzels,..(would this get the stack temps down to the 400's? w/o messing up other combustion  parameters?) I notice the boilers seems to cycle on a lot even when its not very cold outside.

He doesn't think its a good idea that we couldn't keep the places warm in very cold weather,..

I remember reading some years ago ythat a properly sized and fired boiler  SHOULD run most of the time on a very cold day,..(old thinking?)



anyway,..do you think the temps are high? (boilers are clean  )



Also he doesn't seem to ever measure draft over fire,..I thought that was important (?),..



Last question that perhaps no one here is old enough to know,..I also have an old GE downdraft boiler,(steam)..several years ago I replaced one just like it (yes,..there are/were two in the world),..replaced it with a H.B Smith,..and .with the same heating degree days,..it has burned the same amount of oil!  .I would still like to keep it for a while,..it has no  baro damper on it,..another oil guy said it shouldn't have one,..seems like a lot of hot air going up the stack in down times,..

Am  getting good advice in your opinion? 



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Robert O'Brien

"He doesn't think its a good idea"

I couldn't imagine why not?

CMadatMe

Some advice with a little story

Rob's post above says alot in a short reply. Three years ago I had an oil company that was interested in the Viessmann Vitorond 100 Series Oil-Boiler. They wanted to be different and thought it was a great competitor to the Buderus. They installed 25 plus boilers that season. Never a call back, never a problem and 1st  cleanings were a breeze and 3yrs later still no problems and cleaning are a breeze. After those boilers were installed through a complete heating season they decided not to install them anymore. Why? The average customer was saving between 200 and 300 gallons of oil a year compared to the previous seasons. They knew this because they had always been oil customers and they had their prior oil usage.

I would get a second opinion in your case. Did the oil guy do a heat loss to come up with his "you won't be able to keep the place warm when it gets cold" theory? Call a couple of plumbing and heating supply houses in your area and get a recommendation from them of some of their customers that are really good "hydronic guys." Call them, let them what you are looking and what you are trying to accomplish. A good hydronic guy will come up with a solution for you. Not all oil companies but most just service burners a hydronic guy services hydronic systems.

You (not most of us) may be surprised to see that the boilers are oversized and there are soluntions that can be done to the system itself to make it more efficient. Best of luck.

don_9

Reply.

The wm could use alittle tweaking.

Tr#1 not bad at all.

Tr#2 needs lots of work.

Now that you tighten up on the house, will outdoor reset control be in the future?

Leo

Hold on

Are they Traco or Trianco? Never heard of Traco, Trianco is a contractor grade boiler often found in condos.  Not high on the efficiency ratings.

Are they running the specified nozzles?

Are your stack temps gross or net?

H B Smith Series 8 specifies a draft regulater is not needed unless draft is excessive.  Generally they have little if any over fire draft.



Leo

Steamhead

But

if the draft is too high, it's too high, and you need that barometric. What are the combustion numbers on that Smith? 

Rick_41

Clarify

Thank you Gentlemen:

Great informations





No,..I probably  wasn't  clear,..I was referring to the fact that the old  GE downdraft not having a bario damper and my oil man saying it shouldn't have one,..That unit is a steamer



And re the 2 boilers yea,..they are Triancos..HW units .I understand they are not considered as well as Weil-mclain or HB smith etc,..but can they be down fired enough to help with the settings ? Less stack temps but still ok with the other factors?

How do you find how low you can go with nozzel rates/types pump pressures,Are they available anywhere? (i don't have any of the companies paperwork,,)