Tankless Coil

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Old 08-05-11, 11:14 AM
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Question Tankless Coil

I have an old oil fired boiler with a tankless coil.
I have low flow on the hot water coming out of the coil - most likely it is clogged with calcium from the hard water out of our well.
I thought about flushing it with acid - but I'm afraid of a leak since it has been flushed before - and the idea of puting acid through the potable water system doesn't sit well with me.
I called the plumber to replace it (I found the coil for $250) but he took one look at it and he said he wouldn't touch it since he's had bad luck replacing this type of coil before and I'll end up damaging the boiler.
I don't think I'm brave enough to attempt it myself.
Any ideas?
 
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Old 08-05-11, 11:23 AM
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I believe its all about the bolts.

The guys that do that all the time will be on shortly and let you know.

I guess pics would help.

You need to spray the bolts and let them sit awhile. From reading here i think PB blaster is the preferred product.

If they snap its drill and tap time.... Or new boiler.

You could of course leave it and install a electric HWH which would probably save you money on the oil use or install a indirect HWH to run off the boiler, but again oile use....

IMO if I had oile I would have a electric HWH or heat pump design.....

Mike NJ
 
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