DHW Coil Cleaning

slb04786 · Post by **slb04786** » 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,

Post by **stoker-man** » 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.

traderfjp · Post by **traderfjp** » 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.

Freddy · Post by **Freddy** » Tue. Sep. 02, 2008 4:52 pm

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

traderfjp · Post by **traderfjp** » Tue. Sep. 02, 2008 5:04 pm

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

vtec350 · Post by **vtec350** » 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

traderfjp · Post by **traderfjp** » Tue. Sep. 02, 2008 6:18 pm

Stop teasing Freddy for hoarding coal.