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Old 09-23-2012, 04:52 PM   #16
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No heat.


I was thinking about the inspection. i may have screwed my self with this. when we bought the house it was a foreclosed hud house. we had to pay cash for the house because of this.iI'd have to find the paperwork but from what I can remember it had an inspection done buy someone when it was foreclosed and the hvac passed. its kind of wierd though because we bought it and the relator never came back for the lock boxes, sign or anything. i had to change the door knobs just to get rid of the lock boxes after 3 months.. it just felt fishy.

But about the unit. did some research. it sounds like its a Nordyn? Model nunber GR4GA-030K072C. I found a couple websites selling parts but cannot find anyone selling a heat exchanger. and this brings a question to mind. the exchange is steel tubing exactly like car exhaust. could a guy just pull the exchange and weld in a replacment section? Its on the bottom it rotted out on the first 90 turn of a full 180 probably due to the amount of heat right off the flame. I can weld exhaust and can bend a 180 identical to what i have and wire feed it in. cheap fix,I know it sounds redneck but also a actual fix to myprob., I just know i need it fixed soon because me and my fiance have a 6 week old daughter and I cant have her hear with it being cold and cant run heat due to toxic air, so they are staying with my mother in law.

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Old 09-23-2012, 04:57 PM   #17
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No heat.


Sorry about poor spelling, I'm using a touchscreen phone and i have fingers like a silverback gorilla, so between auto correct and misplaced letters i relize it look like a toddler is posting haha
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Old 09-23-2012, 06:05 PM   #18
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No heat.


you should not be able to buy a heat exchanger your self nor should you be allowed to install it on your own. It is time to call a few contractors in your area to get your options for repairing/replacing.
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Old 09-23-2012, 06:33 PM   #19
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No heat.


heat exchangers are not like car exhaust and can not be repaired or welded EVER ....BY ANYONE not even the pros..against CODE..and will not accept weld procedures anyway You need a new heat exchanger OR better still..It sounds like the unit is very old and may not be worth fixing..I would replace it..better efficiency too!
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Old 09-23-2012, 07:18 PM   #20
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No heat.


The heat exchanger is an OEM only part. So you would need to find a Nordyne distributor sell you one.
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Old 09-23-2012, 07:56 PM   #21
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No heat.


I'd really like to avoid buying a new unit, for many reasons. cost to remove old unit, replace with another slab unit to avoid all the cost of putting one in the basement. like I say I'm 23 with a newborn and I am the only source of income so every $ counts. plus I'm putting the house up for sale in spring. this was a starter house.

Anyone have a rough estimate on what it would cost contracted out? $500 - $1000?
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Old 09-23-2012, 07:58 PM   #22
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No heat.


You will have to call local contractors and have them give you estimates. Prices vary by location.
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Old 09-23-2012, 08:37 PM   #23
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No heat.


It's been about ten years since I priced out a heat exchanger install but, I would think about $1,000, installed, should be close but I'm in Toronto so may be off on that price. Nordyne has a website with contact lists etc.
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Old 09-23-2012, 10:10 PM   #24
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No heat.


I'd like to add that paying a qualified gas fitter to replace the heat exchanger isn't just anout having the physical part replaced. You're also paying to have everything installed and checked properly to make sure every component is working as it should be: temp rise, manifold pressure, clocking, etc. Of all the heat exchangers that I've replaced, zero were without some other fault. Usually, they were over fired, but there are several other things to check.

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