Can this be right

jimmac

Hey,scrook,your right he never did say it was residential!But if this multiple family was the dhw load figured into his calc?Not to say the number is right or wrong.Just to double check it!Just mentioned his new edr and old rating.never said steam either (one pipe parallel flow).
Just saying to double check the load.The B&G's a sidearm we I come from.The 976 steam rating would of suggested the square foot .closer to a 3.Gph boiler a lot close to his new edr.Plus of course the new snow melt.That sounded more like a larger residential .Thought i pulled a 82 series out of a brick church last month thought it was a little one.

Chips

Can this be right


I found out (the hard way) that the low water cut-off switch on my W/M 82 10 section boiler was bad, so now I need to replace the boiler. The only thing I can read on the boiler plate is 976 steam and 976,000 water. We have a one pipe parallel flow system with a lot of small 3 column 4 sections 38” radiators = 5sq.ft. Per section = 20 sq. ft. per radiator. Using a 1.5 pick-up factor, I figured the total EDR is 1425 sq. ft. and 342,000 MBH. That’s almost 1/3 the size of the old boiler. The boiler is also used for a 600sq. ft. side walk snow melt system and has a small B&G water heater for DHW.

Thanks, Chips

[Deleted User]

More like 1/2.

The net on the 1082 Weil is 3,050 sq ft of steam. 976,000 is gross btu output.

[Deleted User]

everyone says

they sized them bigger back when

[Deleted User]

Pssst.

The dirty big secret is - they still do.

jimmac

Hmm, think your numbers still might be a little jumbled 3,050 square ft? how big is the house the ten section W/m would take up quite a bigfoot footprint in your house.this sounds like a small apartment building!!!Is the job hot water or steam?Not that familiar with the W/M 82 series but thought the was a smaller one 30high X 20 wide.But by all means I could be wrong but the 3,050 square feet in a residential sound aweful big!!Unless your heating a mansion.
It is a oil boiler no(pressure fired)?Your numbers could be the Minimum relief valve capacity stamped onto the plate!!

scrook_2

W-M series 82

He didn't say it was residential/single family.

At 976,000 output that would be a small commercial boiler, about 8 GPH oil or 1,100,000 BTU/Hr gas input. Looks like an older series W-M, about comparable to a 9 section W-M 78 or 80 -- doesn't mean it wasn't grossly oversized for the radiation though! OTOH if it also had to support snow melt... might be a job suited to two boilers, one for steam and DHW, other for snow melt only, food for thought

Phil_17

double check all connected loads and their sizes

[Deleted User]

1082 Rating

from Weil-McLain Form No. C-427 R-1 (468). The 468 is April 1968. Rated #2 oil input 9.10 GPH. Dimensions 38"W X 64 1/4"H X 65"L.

1-pipe parallel flow is a steam system. Steam & condensate flow in the same direction in the main(s).

Chips

Thanks for the replies. The building is a small hotel, 3 stories total of 15,000 sq. ft. I have doubled checked all my figures twice and then realized that most of the radiators on the first floor have been removed so if I add about a 1/3rd more load it gets closer to the existing boiler size. The load is to big for a MegaSteamer so what’s the best boiler for this load.

Chips

RonWHC

We use

the H. B. Smith 19A Series Cast Iron for smaller buildings. Great steamer. www.smithboilers.com

Long Beach Ed

Low Water Cutoff?

I know you don't come here to be abused but...

You can't blame the Low Water Cutoff. Blame the Bloke whose job it was to mind the boiler.

The Low Water Cutoff is an emergency control. Water level should be checked daily on a boiler like that. Hey, maybe a return let go and it happened really quickly, but I'll bet someone just wasn't paying attention to that water line...

The new boiler will go too, if no one pays attention to its water line...