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Rick
Rick, HVAC Supervisor
Category: HVAC
Satisfied Customers: 14231
Experience:  40+ yrs. experience as a licensed oil & gas technician.
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I have an old Arcoliner Boiler, Series 3BT J3 running at about

Resolved Question:

I have an old Arcoliner Boiler, Series 3BT J3 running at about 79% efficiency with an old burner. Do I replace the full system with a new 3 pass boiler/burner system or just get a new burner? What level of efficiency should I expect from either option?
Submitted: 3 years ago.
Category: HVAC
Expert:  Rick replied 3 years ago.

Rickheatdoc :

Welcome to Just Answer, I will do my best to help you solve your problem

Rickheatdoc :

Time for a new boiler. I have serious doubts about an old Arcoliner working at 79%. Your boiler probably is a minimum of 40+ years old

Customer :

yes..likley from 1959..

Customer :

yr house blt

Customer :

79%...only going on what I am told..

Rickheatdoc :

OK 50 years old

Customer :

I wouldn't know how to even confirm taht

Rickheatdoc :

I don't buy it

Rickheatdoc :

Oil burner tachs can and do often fudge the numbers

Customer :

So to the new three pass units make sense or a more standard model would be more cost efficient

Rickheatdoc :

sorry, should be techs not tachs

Customer :

gotcha

Customer :

I've received three sep quotes on a new system...2 with a three pass, one recommends std

Rickheatdoc :

You only get another 2 to 4% with a 3 pass but if it isn't more than a few hundred more it's probably worth it

Customer :

good to know...price variance now is about 800...so not worth it.

Rickheatdoc :

probably not.

Rickheatdoc :

Be back in a few

Customer :

k...

Rickheatdoc :

What boilers are you considering?

Customer :

wyle mcclain

Customer :

mpo

Customer :

mpo-iq

Rickheatdoc :

You can't go wrong with any Weil cast iron boiler

Customer :

are the 3 pass boilers cast iron?

Rickheatdoc :

Yes

Customer :

what level of efficiency should I expect

Customer :

sorry to ping you with all these questions...is it reasonable for me to ask all of this...at what point do I expire my 23 dollars

Rickheatdoc :

The WGO gives you 85%

Rickheatdoc :

It's a standard config.

Rickheatdoc :

A triple pas may give you 87%+

Customer :

so 3 pass only worth it if 2-300 variance

Rickheatdoc :

The MPO is a Burnham boiler

Rickheatdoc :

Their 8 series also gives you 85%

Rickheatdoc :

The MPO is 87%

Customer :

ok...this is all good information...

Customer :

so basically..you think the 79% effic is not valid/reasonabl

Rickheatdoc :

no way

Rickheatdoc :

maybe low 70's if you have a modern burner

Rickheatdoc :

if you have the original burner lucky to hit 65%

Customer :

and if I decide to go with new unit, then I should look for a WGO or 3 pass,

Rickheatdoc :

I'd go with a Weil WGO or a Burnham V8 series, actually I prefer Burnham. Weil customer service leaves a bit to be desired

Rickheatdoc :

Any more questions?

Customer :

No..I think I'm good...thank you....

Rickheatdoc :

Please hit accept
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Rick, HVAC Supervisor
Category: HVAC
Satisfied Customers: 14231
Experience: 40+ yrs. experience as a licensed oil & gas technician.
Rick and 4 other HVAC Specialists are ready to help you

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