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Inspecting HVAC Systems Topics include heating, venting, and air conditioning inspections.

 
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  #1  
Old 5/1/08, 9:46 PM
sfalvey sfalvey is offline
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Default 2 hot water heaters and furnace on same vent

Is there anything wrong with the venting in this picture?

There are 2 propane hot water heaters, the first is in the left side of the picture, kinda hiding, the second is in line and the flue steps up in size. Then the propane furnace comes in from the other direction and they all vent out nicely to the chimney.

What should be called out here? if anything?

Thanks,
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  #2  
Old 5/1/08, 10:16 PM
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Jack L. Gilleland Jack L. Gilleland is offline
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Default Re: 2 hot water heaters and furnace on same vent

Scott,
Need better picture. Can't see the flue, etc. well enough to actually comment.



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  #3  
Old 5/1/08, 10:21 PM
sfalvey sfalvey is offline
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Default Re: 2 hot water heaters and furnace on same vent

Sorry, this is all I got of this one.



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  #4  
Old 5/1/08, 10:24 PM
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David C. Macy David C. Macy is offline
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Default Re: 2 hot water heaters and furnace on same vent

I can tell to much from the pick but the return grill could be a problem.
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  #5  
Old 5/1/08, 10:25 PM
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James E. Braun, CMI James E. Braun, CMI is offline
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Default Re: 2 hot water heaters and furnace on same vent

It looks fine to me.
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  #6  
Old 5/1/08, 10:26 PM
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James E. Braun, CMI James E. Braun, CMI is offline
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Default Re: 2 hot water heaters and furnace on same vent

Good caught. I did not notice the return grill.
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  #7  
Old 5/1/08, 10:50 PM
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Default Re: 2 hot water heaters and furnace on same vent

Thats a return all right
Good catch David.

Scott what leads you to beleive there is a problem venting two water heaters.

It is ok if the duct is sized right.
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  #8  
Old 5/1/08, 11:00 PM
mthomas2 mthomas2 is offline
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Default Re: 2 hot water heaters and furnace on same vent

BTW, did you note the slipping insulation blanket (possibly obstructing air-flow to the burner)?
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  #9  
Old 5/1/08, 11:15 PM
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Christopher Currins Christopher Currins is offline
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Default Re: 2 hot water heaters and furnace on same vent

What about the TP valve?



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  #10  
Old 5/1/08, 11:28 PM
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Joseph Hagarty, CMI Joseph Hagarty,  CMI is offline
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Default Re: 2 hot water heaters and furnace on same vent

Quote:
Originally Posted by sfalvey

What should be called out here? if anything?
A Level 2 evaluation of the chimney / flue.



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  #11  
Old 5/2/08, 12:39 AM
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Default Re: 2 hot water heaters and furnace on same vent

Any thing wrong here.?
My Inspection from yesterday.
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  #12  
Old 5/2/08, 4:34 AM
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Russel Ray Russel Ray is offline
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Default Re: 2 hot water heaters and furnace on same vent

Quote:
Originally Posted by jhagarty
A Level 2 evaluation of the chimney / flue.
Alright, Joseph. I need more information on that one.

I've never seen a chimney sweep do anything to furnace flues, even if they exit through a "chimney" like in some of the uber-wealthy areas here. They concern themselves with "fireplaces and chimneys."



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  #13  
Old 5/2/08, 6:48 AM
sfalvey sfalvey is offline
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Default Re: 2 hot water heaters and furnace on same vent

Quote:
Originally Posted by jhagarty
A Level 2 evaluation of the chimney / flue.
Good call Joe, that comment made me rethink that----there is a wood stove above and there is only a single flue in the chimney .

With the venting, the furnace comes in at one side of the "T" and the water heaters come in on the other side, are there any pressure concerns I should note? also, is the vent sizing proper as it is set up.

Thanks for the comments so far.



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  #14  
Old 5/2/08, 6:59 AM
Bruce M. Graham Bruce M. Graham is offline
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Default Re: 2 hot water heaters and furnace on same vent

From the photo all of the flue appears to be dead level which would be wrong.



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  #15  
Old 5/2/08, 10:47 AM
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Default Re: 2 hot water heaters and furnace on same vent

Wait a minute here , if that furnace is on a 90 it is wrong.
It must have an angle to direct it out and into the chimney flue.

Call it out.

By the way, my pic shows them using the flue for a table saw.
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