My oil furnace is leaking water from the side of the furnace

Old 04-08-14, 09:52 AM
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My oil furnace is leaking water from the side of the furnace

I have a HB Smith Oil Burner-Boiler Furnace FD-12 and it just stated leaking from it's side. I'd say that the water is coming right out of the furnace and not on any connecting pipes. It's an old furnace. Is it worth saving? Is the problem fixible? I don't know how the system works exactly but I liken it to an engine water jacket and water is leaking out directly from the jacket. Can someone tell me something about this?
Old 04-08-14, 12:52 PM
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In general usage a furnace is a device that heats air for distribution via ducts. You have a boiler.

Your "leaks" may be an indication of a serious problem requiring a total boiler replacement or they may be something less drastic. Does the boiler also supply the domestic hot water in the house?

Post a couple of dozen pictures of the installation. We don't need close-ups at this point but the pictures DO need to be clear, in focus and well lit. A few close-ups of the leaks that you see may be helpful. Best to upload the pictures to a photo hosting site such as or and post the public URLs here. Do not use tinypic as the forum software does not allow it.
Old 04-08-14, 03:45 PM
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The blue fd 12 was always a dog imo and others.Sections leaked when they first came out or not to long after.I remember one , off on reset chamber had about 6 inches in it.Pulled the burner and plate and the water came rushing out.Put it all back together,lit it off and when hot it was good. They are way to tight too. Your lucky yours lasted this long.

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