Duct work collapsed

kmmccauleyJanuary 1, 2008

We are in the process of purchasing our first home. We found one that we liked, made an offer, and then got an ispection. The inspector has found that all the ducts which run through the slab in this one story house have sand in them and are collapsed or in the process of doing so. Some of the ducts are completely blocked. In addition to this the furnace and air system don't seem to be installed properly. Our inspector has recommended that we get a whole new heat and air system with new duct work to run overhead in the attic. The estimate he gave us on the report for this was 5,000.

Doesn't that seem low? What causes duct work to collapse in the first place? The home was built in 1979, so I know it is no spring chicken, but it is not THAT old! Also what the heck is a flue pipe? It says on the inspectors report that it is disconnected in the attic?

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wallynut

The duct work is a thin guage metal (30/26ga.)and has
probably rusted and collapsed causing sand/gravel to fill
that void.
Putting system in attic is good option.I would recommend
90% gas unit, direct vent. As far as price, ask several
contractors for cost.
If flue pipe is disconnected in attic must be corrected
serious co issue.

    Bookmark   January 2, 2008 at 7:36AM
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dan_martyn

Hopefully the offer was contingent upon the results of the inspection. It's a buyers market and the cost of repairs should be negotiated into the offer. Get several estimates that list out exactly what will be installed for equipment, supply and return registers and grilles (Count), general ductwork layout, controls and any electrical work. If they need to open up the walls or ceilings ask about that too. Ask about their License, bonding/Insurance and references. If it is not in writing, it is not in the contract.

    Bookmark   January 2, 2008 at 1:02PM
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bus_driver

Inspecting the ductwork interior with a camera should be possible. I saw some slab houses years ago where the buried sheet-metal ductwork was encased in concrete before the slab was poured. Not necessarily energy efficient, but durable.

    Bookmark   January 2, 2008 at 7:33PM
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kmmccauley

Thank you for you input about the heat and air system. It was especially interesting to here about the co2 problem with a disconnected flue pipe. I hate to think what would have happened ig that had not been found and we had moved in there with our two young children!

    Bookmark   January 3, 2008 at 8:48AM
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bus_driver

The problem is CO, carbon monoxide, results from incomplete combustion of carbon. CO2 is the desirable byproduct of complete combustion. It is the gas that gives Pepsi it's fizz.

    Bookmark   January 3, 2008 at 7:57PM
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