National-Us 99 series boiler


Old 06-10-10, 03:39 PM
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Join Date: Jun 2010
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Question National-Us 99 series boiler

Anybody ever heard of a National-US 99 series boiler? It has a pilot that you have to light? Good lord how old is this thing?

I followed the directions but no luck :-(

This is a rent to own home and this furnace is scaring me

Looks very old. Anybody ever work on one or have one? Are they any good? Is it so old it should have been replaced years ago?

Please HELP!!!!
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Old 06-12-10, 04:38 AM
Join Date: Mar 2006
Location: Wet side of Washington state.
Posts: 18,493
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I guess no one is going to respond so I will. It would have been better if this had been posted in the boilers section but...

I do know a couple of things about old boilers but before I waste my time with any kind of detailed response I want you to post some pictures of the boiler and piping systems.

To post pictures you need to first upload the pictures to a photo hosting site such as or and then post the public URLs for the pictures (or album) here. More pictures are always better than fewer. Please have CLEAR pictures and have both close up pictures and ones from a far enough distance that we can see how the various parts are interconnected.

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