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Author Topic: Digging Trench from Furnace to House  (Read 4715 times)

BenGrove

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Digging Trench from Furnace to House
« on: September 29, 2014, 08:18:37 PM »
So I'm planning on install my new furnace by myself, but have a question.  When I dig the trench, two feet deep, do I dig so the piping can go under my foundation to my house? I just wasn't sure if that would hurt the houses foundation.
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Jwood

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Re: Digging Trench from Furnace to House
« Reply #1 on: September 29, 2014, 08:40:20 PM »
Do you have a slab on grade?
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AirForcePOL

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Re: Digging Trench from Furnace to House
« Reply #2 on: September 29, 2014, 08:51:16 PM »
It shouldn't be a problem.  Just make sure you tamp the dirt back in real good after you run the pipe through.
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atvalaska

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Re: Digging Trench from Furnace to House
« Reply #3 on: September 29, 2014, 09:52:17 PM »
yup add d-1 and water...it well be as good as new
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BenGrove

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Re: Digging Trench from Furnace to House
« Reply #4 on: September 29, 2014, 10:54:00 PM »
What happens if the dirt is not tamped in?
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LittleJohn

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Re: Digging Trench from Furnace to House
« Reply #5 on: September 30, 2014, 06:50:58 AM »
Quote from: BenGrove on September 29, 2014, 10:54:00 PM
What happens if the dirt is not tamped in?

It settles  :P

Also remember to back fill with as much sand as possible, it means less sharp rocks by pipes :thumbup:
« Last Edit: September 30, 2014, 02:22:16 PM by LittleJohn »
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lindnova

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Re: Digging Trench from Furnace to House
« Reply #6 on: October 03, 2014, 03:06:51 PM »
Tamping in sand should be ok as long as the area is small and not under a main loading point (next to window headers or something).  If you really want to be sure, use flowable grout (concrete).

If you can core thru the foundation wall it might be better.  How deep are your footings?
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