Originally posted by DonP
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Need a new water heater. Any advise?
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Originally posted by etepbbb View PostFrom your pics I see a furnace, so I assume plumbing an exhaust duct from a regular water heater wouldn't be a big deal since there is a vent in that room already. Maybe bite the bullet and have a non high eff. installed and plumbed.
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Have you checked Grainger for a new blower motor? There's a place called Berry Bearings that stocks practically every bearing. Some of the HVAC places require a business license if you plan on purchasing from them, but often will sell directly to the public if you pay in cash. I would consider replacing the motor or bearings. If you choose the latter you might need a press to remove and install the old bearings.Last edited by Trussrod; 11-25-2011, 11:06 AM.
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Originally posted by DonP View PostThe exhaust is routed out the side of the house. I'm no expert, but I thought in order to have a normal gas heater, you have to have a chimney going straight up through the roof. Too late to do that now unfortunately.
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Originally posted by DonP View PostThe exhaust is routed out the side of the house. I'm no expert, but I thought in order to have a normal gas heater, you have to have a chimney going straight up through the roof. Too late to do that now unfortunately.
You should be able to replace just the blower as already mentioned. I'd look into that first. Find the P/N and search the internets, you might get lucky and find one for less then $500.Last edited by etepbbb; 11-25-2011, 02:18 PM.
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Update. Found a neighbor who is a contrator. He found me a universal replacement fan for my water heater for $250. Did the work myself, wasn't too hard. Had to do some exhaust re-plumbilng because the vent is on the left instead of the right. Tested the heater every so often to make sure it was working. Everything went well until I made the final exhaust connection then bam! no flame.
So it turns out that the blower motor was killed because it was running all the time because the flame wouldn't stay on because the exhaust system has a back pressure issue. It still flows a lot of air, but I guess not enough (the blower motor kicks out a LOT of air).
It will run with the exhaust vent loosly over the top.
So I have a carbon monoxide detector while I try to figure this out.
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Originally posted by etepbbb View PostI wonder if you have enough fresh air coming in. Maybe the exhaust is creating a bit of a vacuum, not enough air to pull into the water heater. Try opening a window in your utility room and see if the exhaust works more effortlessly.
There is a safety vacuum switch that turns the flame off if there isn't enough air being pulled through the exhaust. Connecting the pipe to the blower causes the switch to kill the flame almost immediately. I need to snake the vent to try and find an obstruction. I'm guessing mud wasp or similar. It's not a full blockage, but something has changed in the 6 years since the house was made.
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