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It exists--and works (I've tested it on both of mine).

D.

I thought that since I posted the "before" picture at the beginning of this thread, I should post the "after" as well--and the before again, just for the sake of convenience.

The contractor began...

For the record, I found my answer in the installation instructions for the TCONT803.

In non-Heat-Pump installations, the F terminal is normally not used (it's used for emergency heat in a heat...

The XV95 was just installed. Looking to optimize registers to get the most out of the pricey system.

D.

Is there a way to get some feedback on the TCON803 t'stat that shows if the furnace is in first stage or second stage?

Thanks!

D.

I need to replace a handful of old 12x6 ceiling registers. Is there a particular style, design, or manufacturer that will provide the best overall performance? Rather than trotting down to the local...

A couple of questions on venting of condensing furnaces (Trane XV95 in particular):

1) Where there is a PVC flue pipe brought through the roof, how far above the roof does it need to extend, and...

Well, we've decided to stay with the XR15 and spend the money I save on something fun like mastic and duct wrap. And maybe a small lathe for my woodshop. :)

Thanks, all.

D.

If I had the money for a couple of 20i's and XC95m's, I wouldn't be asking the question. :)

D.

If I go with the XL16i, the downstairs will be 3 tons, upstairs 2 tons. If I go with the XR15, both will be 2 1/2.

I have no fantasy about the dual-stage paying off in short term. it's a matter of...

I'm about to pull the rope on my two systems that I need to replace. I find myself sitting on the edge and having to make a decision--a decision I'm struggling with. I need some input from...

Airflow from the registers has been fine. There's no flex--not in the picture, or in the entire house. I'm not particularly fond of flex--and if I found it in my crawl space, it would be gone before...

While working on something in my crawl space today,I noticed this and it didn't seem quite right to me.

317351

The duct on the right is from the furnace. What makes me wonder is the way it...

Sitting here looking over proposals for my two new units, getting ready to pull the rope. I got to thinking (which can be dangerous) about the downstairs furnace sizing.

The existing downstairs...

UPDATE: Heard back from contractor and learned that he'd specified a wooden box because they had one on hand that they'd built for a different customer but never used it.

He'll be installing...

Both of my remaining bidders have proposed different solutions. One wants to use the existing box and line it with sheet metal (apparently he missed the part about how I wanted no part of that thing...

The upstairs unit we're replacing moves a good deal of air. I don't think that will be a problem. That said, I do intend to seal and re-insulate the accessible ductwork (in the attic, as is the...

I have two contractors who've bid systems. Both did a Manual J, but they came up with different results. Both contractors reached the same conclusion on my downstairs unit, but they reached somewhat...

How about the XR16?

D.

I've come down to the part of my selection process where I'm seriously evaluating options and choices. I've pretty much decided on Trane XV95 furnaces for both systems--it was either that or the...

Thanks, guys, for all the great input. One more question:

I've done a lot of online searching for good examples of a sheet metal equivalent to this ugly mess masquerading as a plenum (that WILL be...

This broad range of answers is an interesting illustration of both the value and challenge of getting multiple professional opinions on most anything. It would appear that there is no absolute...

I have a 2.5 ton AC on an 80,000 BTU gas furnace. The existing (single) return consists of a 20 x 20 filter grille and approximately 20 feet of 14" round pipe with two 90 degree elbows. This connects...

A couple of quick questions on 2-stage AC systems...

1) I've been looking at Trane's 2.5 ton single-stage units. Trane's two-stage units come in 2-ton and 3 ton, no 2.5 ton. In this case, should I...

One contractor has bid an XR15, the other has bid the XL15i. Both are bidding XV95 furnaces.

Based on the specs I found on the Trane site, it appears to me that the XR15 must be a little more...