EFM 520 Highboy
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I'm looking for information on how to hook up my Highboy. My house has a one pipe steam system. Is there any detailed information out there on how to hook this stoker up? The stoker was setup for hot water so it needs to be converted over to steam. If someone could point me in the right direction that would be great. Thanks
- Rob R.
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Page 13 in the EFM manual has the recommended piping layout for steam. You should check the pitch of your steam pipes and the condition of the vents as part of this project.
http://cdn.efmheating.com/DF520-Installation.pdf
You will also need to purchase the steam controls and a sight glass kit.
http://cdn.efmheating.com/DF520-Installation.pdf
You will also need to purchase the steam controls and a sight glass kit.
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What size pipe does the header have to be?
- Rob R.
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How many square feet of steam radiation is in the system?
Running full size pipe from the boiler tapping to the risers would result in drier steam, but if your connected load is well under the boiler capacity you can probably downsize the pipe a little.
Running full size pipe from the boiler tapping to the risers would result in drier steam, but if your connected load is well under the boiler capacity you can probably downsize the pipe a little.
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360 square feet
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The tapping on the boiler now is 2" from the previous hydronic system. I don't know if I'm going to be able to get it out. I had a pipe wrench on it with a 4' extension pipe on the end and all it did was spin the whole boiler
- McGiever
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Both feet on the boiler and both hands on a bigger 'cheater' bar and 'grunting' will stop the boiler spinning.
But seriously, a Fire Wrench will help get it loose.
But seriously, a Fire Wrench will help get it loose.
- windyhill4.2
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You could put it against a wall on 1 side & park a vehicle against the other side or a tractor if you have 1 of those.
- Rob R.
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Those bushings are miserable to remove. I ended up cutting mine nearly threw with a reciprocating saw and breaking it out with a chisel.
I am not an expert on steam velocity, but I think 2" would be putting you at an undesirable velocity. For a little bit of work, I would remove the bushing and run 3".
Is the rest of your near-boiler piping correct? If you are not sure, you need to do some research.
I am not an expert on steam velocity, but I think 2" would be putting you at an undesirable velocity. For a little bit of work, I would remove the bushing and run 3".
Is the rest of your near-boiler piping correct? If you are not sure, you need to do some research.
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Idk if the near boiler piping is correct. That's why I'm here lol. I would imagine it's not since there is a oil boiler in place now.
- StokerDon
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It's pretty difficult to tell if the near boiler pluming is correct without seeing it. A picture is worth a thousand words.
What happened to the steam plumber that you had?
-Don
What happened to the steam plumber that you had?
-Don
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I had 3 different plumbers give me quotes and the cheapest one was $5,000. So needless to say I'm going to attempt the install myself. I'll take pictures later and post them. I know the piping coming off the boiler as well as the mains are 2"
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Two mains.
- StokerDon
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- Hand Fed Coal Furnace: Harman SF3500 reduced down to 3 grates connected to its own plenum
- Coal Size/Type: Rice, Chestnut and whatever will fit through the door on the Harman
- Other Heating: Noth'in but COAL! Well, Maybe a little tiny bit of wood
Ouch!hardcoalhardcore wrote: ↑Sun. Dec. 24, 2017 9:38 amI had 3 different plumbers give me quotes and the cheapest one was $5,000.
Is this header a drop header, or did they just connect the two supplies into one pipe?
-Don