Lennox Boiler Pipe Premature Rusting


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Old 01-17-12, 10:51 AM
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Lennox Boiler Pipe Premature Rusting

Hello,
I have a lennox conservator series boiler, model gwb8-e/s. The pipe coming out of the side that carries the hot water is very heavily rusted. The boiler is only 8 years old, and I believe there must be some thing wrong for this pipe to be so rusted already. The company that installed it told me that I need a whole new boiler. Can someone tell me if the part is replaceable and if maybe the heavy corrosion is due to a faulty installation. Thanks.

Pictures can be seen by going to the following page:
http://photobucket.com/lennoxpipe

 
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Old 01-17-12, 11:52 AM
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I don't know if that pipe is replaceable but it is definitely caused by a lousy installation. Where the valve is threaded onto the pipe it has been leaking for a long time.
 
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Old 01-17-12, 02:39 PM
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You don't need a new boiler. That elbow threads into a tapping in the boiler. Remove the side panel so you can see the business end. First, you'll need to cut the copper piper somewhere, and then you'll need a large pipe wrench, e.g. 18" or 24". Then, when you put it back together, apply pipe dope and plenty of torque. You can probably let it go until spring - a schedule 40 steel pipe is way over-designed, pressure-wise, for a hot-water boiler.

I agree with Furd - that connection seems to have been leaking for a long time, probably since it was installed. But where have you, the owner, been all this time? You should make it a habit to inspect the near-boiler piping on a regular basis - and any leaks need to be fixed.
 
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Old 01-17-12, 04:09 PM
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Gil, you sure that elbow is removable? I'm not familiar with Lennox at all... but isn't this a steel boiler, not cast iron? Is it possible that elbow is welded on?

Definitely a long time leaker...
 
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Old 01-17-12, 04:43 PM
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Originally Posted by NJ Trooper View Post
Gil, you sure that elbow is removable.
I deduced that from the Lennox website, but they don't have data for that model. As I said, remove the side panel and check everything out, visually.
 
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Old 01-17-12, 06:10 PM
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Lennox seems to be one of those 'tight-lipped' companies for some reason... don't tell ya nuthin... Carrier seems to be another.
 
 

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