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Sorry to keep bothering you all, but this forum keeps coming back as the most helpful place I find :)

I want to force the company to give me all my money back. But I think I might need some good...

They did some calculations, two people said it would be OK.

I wouldn't mind a double check. The main furnace kicks into its second stage about 5 minutes in, and is rated to burn at 92,000 BTU...

Just an update (in case people run into this thread months down the road and wanted to see the result). We've had the furnace folks over a few times. Here's what we've found:

* All tests showed...

Thanks for the comments.

When I talked about temperature range of the vents, I was summarizing the temperatures I was seeing coming out of the 6 vents in the basement.

When temperatures...

Ok, I just ran a bunch of tests. Because I'll need to explain what I found to the furnace people as well, I put it all in chart form. (Plus, my job has me analyzing stuff all the time, so this is a...

I know that right before we put the furnace in, I saw a pit with three 4 inch metal pipes heading out towards the rooms.

At the supply ends, it almost looks like the ducts are a trough, a foot...

6 supplies (there are 4 rooms, the two larger rooms get two supplies). There is one return, it's on a wall adjacent to the furnace. (It's a very large return, and it's positioned about 10 feet from...

You know, this may be the issue.

The device is counterflow, so the ducts run under the slab. I know some vents seem to blow out slightly warm air, but a few don't seem to be of normal warmth. ...

Thanks all. I'll be doing some meter tests later today, grabbing lots of data along the way. Luckily I have an upstairs floor furnace of very similar characteristics (and the floor layout is almost...

Yep, two strand wire. Only W1 is connected.

Thanks for the reply. Sorry for not having the full details, I'm just a lowly homeowner learning about this stuff for the first time. :)

It's an Armstrong G2D95CC060V14B. Info on it here:...

This September, we had a furnace installed to heat the basement. It's an Armstrong, two-speed, 95% efficiency unit. The specs say it can do 57,000 BTU/hr, and my basement is 1350 sq ft.
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