On Jun 21, 4:09 am, Doug wrote:
On Wed, 20 Jun 2007 12:40:34 -0700, Paul Flansburg

I'd agree with the above except that a tankless coil CAN be replaced.
Many boilers about the age of your Weil-McClain and newer have used
stainless bolts to fasten the tankless coil. In any event, with some
caution, time and penetrating oil, I've removed tankless coils. A
replacement coil is only about $150 plus labor if you don't do it
yourself.

Here's a picture from the inspectors report that shows the boiler.
You can see that there's a lot of rust at the bolts that hold the coil
in place. One of the oil company service people said that we could
try to replace the coil, but the risk is that we'd have to end up
replacing the whole boiler if things go bad...

http://tinyurl.com/2vwbl9

-Ben