I was just talking to my contractor / installer about a Trane XL16i, and he came back with some numbers on a Trane XR14 coupled to an Aspen coil. I'm not sure of the model of coil, but he said that the efficiency numbers on it and the furnace were enough to make the entire system qualify for the tax credit.
He's a friend that is trying to put together something for me that will be efficient and not break the bank, but I'm wondering... Is it worth it to save a few bucks (not really that much in the scheme of things) to cobble something together, or is it best to get the entire Trane system from soup to nuts. I've seen the term Frankensystem a few times and am wondering how bad it is to mix brands.
Being in Houston with a 2 story house, we're getting 2 complete systems replaced. As we use the A/C 10 or 11 months of the year, with many of those months being mild temp (except for the hottest part of the summer), am I correct in my thinking that a 2 stage compressor would definitely be worth the money? Maybe not as much savings during the middle of the summer when it has to run full-bore, but in the other 6 months of of a/c weather there would be some savings?
The XR14 is not a 2 stage compressor so watch out.
Have a 4-ton dual fuel HP going in next week. Without the Aspen coil there was no manufacturer configuration that met the tax credit criteria and this a very high end system. Note that larger capacity systems seem to have a tougher time meeting the criteria. Ask him for the AHRI certification # and check it on the AHRI directory search or have the guys here do it. Warning: since I signed my proposal in early June, AHRI has "rerated" my HP/coil/furnace combo and reduced the HSPF for the HP but it still passes the criteria.
Also, note that with the Aspen coil, Aspen and not the HP/furnace manufacturer provides the tax credit certificate which they did in a couple of days after my distributor requested it.
In August, the rating system will change. And that Aspen coil may not meet the tax requirements anymore.
Third party coils are not tested, they are done by computer simulation. So its doubtfull you really get the efficiency rating they say it has.
Which is probably why the rating system is changing.
BT, I was told by distributor and Aspen it would be July 15. However, this week AHRI rerated a number of York/Aspen combo's by reducing the HSPF on them. In my case HSPF went from 10.15 to 8.95.
Originally Posted by beenthere
Your probably correct.
Originally Posted by jerryd_2008
I don't use third party unless there is no other way to fix a coil in a tight area.
Originally Posted by TxDusty
Yes, I took note that it was not dual stage. Am I correct im my thinking that with the dual stage, the times when only the first stage is required will be the times that the real energy savings are seen, with the 2nd stage kicking in when it gets really warm outside.
If you're spending serious coin to begin with, are you getting equipment on the brink of being obsolete with a single stage compressor? Should a consumer that is planning to live with the equipment for a while take nothing less than a dual stage compressor system?
Keep the information coming on Aspen (or any other 3rd party mfg) versus a complete system with one brand.
Read more about Mix-Match Coils here;
May be an issue with the Tax credit,date installed,etc.,beware.
I am a homeowner in the Houston area too. One thing you want to watch out for, is the temptation to size the XL16i larger "because it's a 2-stage". I do think all the Houston area contractors tend to size big unless you press them to do closer to the Manual J sizing. On the other hand, the XL16i is mostly only available in 1-ton increments, while the XL14i is available in more sizes. I would *not* consider the XL14i, the XL15i, or other 1-stage AC obsolete.
I have the 19i and was able to downsize from 3.5 to 3.0 ton, making the duct system less stressed and still it runs quite a lot on the 1st stage. For that model 1st stage is about 55% of 2nd stage, for the XL16i will be 65-70%. Something to watch out for: when I looked at the latent capacity of the XL16i recently it seemed low compared to some other models. You might do well to investigate the latent capacity of each of the systems you consider, in order not to compromise your indoor humidity.
Best of luck -- Pstu
Thanks, Dash. Very interesting. Well, BT, guess York won't be selling many Affinity 18 SEER dual fuel HP's because their web site lists absolutely no furnaces and coils that meet the tax credit.
Originally Posted by dash
But then Aspen has already supplied me with my tax credit certificate so I am not too worried. Maybe a bit p....d.
They have a lot of 8T that qualify.
Just not in your size.
Time to go on a diet. LOL
At this point in the game and with the rash of coils leaking at the 3-5 year mark by all manufacturers in my area and you are only about 3 hours away from me. I wouldn't even consider putting in an evaporator coil that is not tin or tin plated. Trane and Carrier have those. Maybe it's just the area, but any copper coils are going to leak. They may or may not be under warranty when they fail, but most will have to pay for labor and materials. If you are going to purchase a copper coil, I would get the extended labor and parts warranty through the manufacturer, not a 3rd party or by the installing company. The reason is that as we have seen over the last year, no company is immune to failure at this point, even the big guys. But the chances are less they will than an installing company or pop-up 3rd party warranty company.
I like DIY'ers. They pay better to fix.