Pipe size from boiler to house

Re: Pipe size from boiler to house

PostBy: Ted4 On: Tue Mar 18, 2014 8:59 am

I know I'm a pain in the ass. I'm not afraid to read, I'm just so tired at night it don't stick. But I guess I better.
Ted4
 

Re: Pipe size from boiler to house

PostBy: windyhill4.2 On: Tue Mar 18, 2014 9:22 am

I read thro lots of threads on here & base my expectations on their outcomes,can't see that your set up & plans need to be complicated to the tenth degree. If you think you are a pain the butt,you haven't read many threads on here yet,ask all the questions you want,you will receive a lot of opinions & advise that you can then apply as best suited for your situation.
windyhill4.2
 
Stoker Coal Boiler: 1960 EFM520 installed in truck box
Hand Fed Coal Stove: Crane 404 with variable blower
Coal Size/Type: 404-nut, 520 rice ,anthracite for both

Re: Pipe size from boiler to house

PostBy: Sting On: Tue Mar 18, 2014 9:32 am

Ted4 wrote:I know I'm a pain in the ass. I'm not afraid to read, I'm just so tired at night it don't stick. But I guess I better.


I love it when folks tell me this -- -NOT

Some comment how I run circles around the "young' guys on the job and I reply " I will have plenty of time to sleep when I am dead" :lol:

There are two motivators in life -- Fear and LOVE

All else is a Consequence
Sting
 
Other Heating: OBSO Lennox Pulse "Air Scorcher" burning NG

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Re: Pipe size from boiler to house

PostBy: Lu47Dan On: Tue Mar 18, 2014 11:56 am

Ted, remember that water flows more quickly in the center of a pipe than against the walls of the pipe, this can cause problems when a piping system is grossly oversized for the appliance it is feeding.
In essence running a 2" line to a appliance that has 1" ports, allows too much dwell time. In other words the water volume in the larger pipe can not flow through the appliance at that gpm at that pressure. That is also hard on equipment and noisy in operation.
Doing the math is the only sure way to make the system work correctly. I did the math when picking the oil boiler for the house. But I have upgraded the windows and insulation in the house since the boiler was installed. Is the boiler oversized for the present load, the answer is yes it is.
Figuring the heating load for the house and the new shop(not built yet) was a pain as the boiler will have to feed two buildings, one the shop will only have full time heat in the machine area 18' X 30'(68°F) and a much lower setting for the work bays 32' X 40' (55°F) The heat load on the shop will very greatly. I sat for several days running the figures and came up with a BTU range required to handle the house and shop. A EFM 700 or 520 will handle it. Piping is another story as I am not 100% sure on how big to run the piping from the boiler house to the shop. I am right on the edge of being too small.
Adding another zone to the system would be a good idea to help with the control of the system.
When you have done the math than you can buy the correct sized pipe to handle the load you will have.
Dan.
Lu47Dan
 
Hand Fed Coal Stove: Sears circulator air tight stove.
Other Heating: Crown 115,000 BTU oil fired boiler(house) Weil Mclain 150,000BTU oil fired boiler(Shop)

Re: Pipe size from boiler to house

PostBy: Lu47Dan On: Tue Mar 18, 2014 12:06 pm

One other thing, as to posting separate questions to separate threads, that concern the same system, just add a link to the question in the main thread.
Like this.
This thread is connected to.....
Trenched Foam vs insulated pipe.
http://nepacrossroads.com/about33334.html
Sometimes another member needs the information contained in a thread but can not find it buried in 30 pages of a thread so posting multiple questions in separate threads helps when searching for the needed information.
One message board I am on has a thread that just kept going with multiple projects and multiple questions, it had some very good information in it, but was a pain to find it. The Moderators eventually separated the information out into threads of it's own and locked it. That started the MB's Tips and tricks forum.
Dan.
Lu47Dan
 
Hand Fed Coal Stove: Sears circulator air tight stove.
Other Heating: Crown 115,000 BTU oil fired boiler(house) Weil Mclain 150,000BTU oil fired boiler(Shop)

Re: Pipe size from boiler to house

PostBy: oliver power On: Wed Mar 19, 2014 3:23 pm

I bought one book "Modern Hydronic Heating". Roughly $100.00 when I bought it. Well Worth The Money! I read that book over, and over, and over, till I understood everything I needed to know. Did all my calculations. Figured materials, and installed my system. Come the dead of winter, when Everything works as it should, that's when you'll see, it paid to do your homework. I couldn't ask for a more evenly heated house. So, go buy the book. It's a one time deal. You'll be very happy you did. You can always sell the book when you're done. If you're like me, you'll keep it for reference. Or maybe a future system.
oliver power
 
Stoker Coal Boiler: KEYSTOKER Kaa-2
Hand Fed Coal Stove: Hitzer 50-93 & 30-95, Vigilant (pre-Vigilant-II)
Baseburners & Antiques: MANY (Mostly when burning wood)
Stove/Furnace Make: HITZER / KEYSTOKER
Stove/Furnace Model: 50-93 & 30-95 , Kaa-2

Re: Pipe size from boiler to house

PostBy: Ted4 On: Wed Mar 19, 2014 4:12 pm

Thanks to all for the patience and input, much appreciated
Ted4
 

Re: Pipe size from boiler to house

PostBy: Yanche On: Thu Mar 20, 2014 10:05 pm

The question you are really wanting to answer is what pipe size is needed to move the needed heat (BTUs) from the boiler to the radiation system in your house. There are many solutions, ranging from pure guesses, rules of thumb to engineering calculations. For the engineering method look at what I've previously posted in the following thread:

Yanche's Toolbox, Piping & Circulator Selection Method
Yanche
 
Stoker Coal Boiler: Alternate Heating Systems S-130
Coal Size/Type: Anthracite Pea

Re: Pipe size from boiler to house

PostBy: StokerDon On: Sat Mar 22, 2014 12:16 pm

Yanche,

That's a great thread, a lot of useful info there. I wish I would have found it 3 months ago!

-Don
StokerDon
 
Stoker Coal Boiler: Yellow Flame "Competion Series" 3 grate boiler, Losch 475
Hot Air Coal Stoker Stove: Alaska Stoker1? can't figure out these dern Alaska names!!! It's a big old black one.
Hand Fed Coal Furnace: Harman SF3500
Coal Size/Type: Rice and Chestnut
Other Heating: Noth'in but COAL! Well, Maybe a little tiny bit of wood

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