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Author:
sloopguy (PA)
I have an 8 room two story house I have gutted. It has a one pipe steam system with a radiator in each room. I purchased a new Weil-McClain steam boiler from the supply house that sized it according to all the sizes of the radiators that I provided them. What I noticed while gutting this home is that on the second floor of this 100 year old home is that the largest room furthest away from the boiler has the smallest radiator while the bedroom closest to the boiler has the largest radiator. Although this room faces north, it has only one window and is much smaller while the largest room with the smallest radiator has three windows. I should mention that all the windows are being replaced with double pane high efficiency windows as well as lots of insulation. My question is what to do about the radiator sizes. Thanks for the help.
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Author:
Paul48 (CT)
The only way to be certain, is to do a room by room heat loss calculation. Then convert the EDR of each radiator to make sure it meets the heat loss of each room. You may find that the improvements you are make to the envelope, make all the radiators large enough to sufficiently heat each space. To prevent the rooms from being over heated you can install thermostatic radiator vents. The new boiler must be installed to factory specification at a minimum. No copper pipe above the waterline.
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Author:
m & m (MD)
Adhere to the manufacturers near boiler supply and return piping requirements.
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Author:
Paul48 (CT)
There is a site called ComfortCalc that has a simple tutorial about steam boiler piping. The near boiler piping is critical to proper operation of the boiler.
Edited 2 times.
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Author:
m & m (MD)
[file.ac]
This document can be found on U.S.Boiler (Burnham) website. Great source of wet heating info.
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Author:
Paul48 (CT)
It's all good info M&M............Homeowners need to arm themselves with as much knowledge as possible.If a homeowner is having a contractor install a boiler, the most important thing that can be written into the contract, is, that the boiler will be installed to factory specification, and according to the I&O manual.
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Author:
bernabeu (SC)
AND that the manufacturer's installation manual/sheet will be LEFT WITH THE CUSTOMER
else
how would they know of improper installation ?
==============================================
"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638
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Author:
Paul48 (CT)
Hmmmm......There's this new fangled thing called the internet. You can find out anything you're interested in on it. I haven't come across a boiler manufacturer yet, that I couldn't get their I&O manual online. I'd suggest that anyone that is having a boiler installed, read the manual before installation. It's kinda pitiful, but the majority of the boilers installed (steam especially), are not installed correctly.
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Author:
bernabeu (SC)
.....because too many installers can NOT read on the 10th grade level
nor comprehend a 'schematic' or even a sketch
==============================================
"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638
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Author:
Paul48 (CT)
True....and many will leave the unopened manual packet, right with the boiler.
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Author:
packy (MA)
that's an insult. i am proficient at 10th grade reading.. it's that darn 11th grade that has me stumped.
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Author:
m & m (MD)
"If you refer to the fifth grade as your 'senior' year..."
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Author:
bernabeu (SC)
once upon a time, in a land far far ago ..........................
I tried my hand at a (now dead and buried) trade known as "Technical Service Writer".
We were instructed to write said manuals / instruction sheets at the "academic" 10th grade level.
(I stank at this work.)
However, by today's standards, said 'manuals' would be college level as most HS graduates are NOT issued actual 'Board of Regents' academic diplomas but merely 'certificates of completion'.
Aaaaah, thank the Creator that the Easterners are actually educated .... the issue is now one of translation.
==============================================
"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638
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