DHW Coil Cleaning

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slb04786
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Stove/Furnace Make: EFM
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Post Tue. Sep. 02, 2008 2:26 pm

I am in the process of refurbing and installing the used EFM 520 I bought. Inspecting the DWH coil and I see signs of calcium/hard water build up inside the coil pipe. I haven't hooked it up to a water source to see what the flow looks like yet. Is there something I can use to cleam the build up from the coil? Also, does it matter which connection is the cold water inlet and which is the hot water outlet on the coil?
Thanks,

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stoker-man
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Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove
Location: Lehigh Valley, PA

Post Tue. Sep. 02, 2008 2:50 pm

It doesn't matter which way you hook up the coil. You should be able to find a plumber who will acid clean it.

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traderfjp
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Post Tue. Sep. 02, 2008 4:43 pm

Freddy posted about cleaning coils with a bucket, hose and a small pump. It really didn't sound too hard just make sure you don't over do it.

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Freddy
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Stoker Coal Boiler: Axeman Anderson 130 (pea)
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Coal Size/Type: Pea size, Superior, deep mined
Location: Orrington, Maine

Post Tue. Sep. 02, 2008 4:52 pm

And I can't seem to find that post....anyone remember where it is?

Visit Alternate Heating Sytems

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traderfjp
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Post Tue. Sep. 02, 2008 5:04 pm

I think that was 246 post ago. Or wast it 198 post ago. Not sure.

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vtec350
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Post Tue. Sep. 02, 2008 5:06 pm

Freddy wrote:And I can't seem to find that post....anyone remember where it is?
It was somewhere between your 1st and 2nd coal delivery :lol: :woot: :funny:

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traderfjp
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Post Tue. Sep. 02, 2008 6:18 pm

Stop teasing Freddy for hoarding coal. :P

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