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This is my undersanding. Let's say the furnace qualifies but the AC efficiency doesn't. Then if the furnace part of the installation doesn't add up to at least $5k, you technically wouldn't get the...

I could see an overshoot maybe if trying to step from one temperature to another as fast as possible.

But when recovering from a setback temperature, there's no rush and it could be very...

I thought I knew the stat pretty well. Guess not, cause I didn't even know about the 3 second feature with the right button (doh). Anyway, that's exactly what I was looking for, I'll be using that...

Fratello25, I hope you don't mind, but I'd like to add another infinity stat question, about humidifier setpoint. Let me know if you want this moved to a new thread.

The humidity level for...

fullcircle, don't know if you're still considering the 58MVC, but if you are, I wouldn't worry at all about it being 3-stage modulating versus say 60-stage modulating or whatever Trane and others...

The zoning infinity stat will definitely work. If you're certain you'll never want zoning, then either would be fine. If there's a chance you'll want zoning someday, then the zoning version could...

I would think that having air circulating when the furnace has switched off should help reduce the difference in temperature between different areas or rooms (the opposite of what you're noticing). ...

Not sure how much this matters, but with the Performance 16 the low stage is something like 78% capacity of the high stage. The Infinity 19 has a bigger difference between high and low (low is...

Responding as a home owner, not a pro, but had looked into similar question before. The Infinity model is a bit more efficient than the Performance model (25HPA636 is the Performance 2-stage heat...

New question. What's your opinion of the Carrier 4" media filter cabinet that comes as part of the Carrier furnace?

For me, a 4" media filter is exactly what I wanted. But it doesn't seem like...

Thanks for the replies. I'll see if I can get the size of the drop increased some, and will keep an eye on the dryer vent for a while before deciding whether or not to move it.

Couple of installation questions for furnace and AC.

(1) AC too close to dryer vent? For the outdoor unit, how close can it be located to a clothes dryer vent, to avoid any issues with lint...

I'm being told that the Performance series definitely has the Infinity communicating features (I think it is even in their brochures). Whether or not the Infinity unit has a few extra communicating...

I'll know my situation better once the new system goes in I think. Trunk lines are decent I believe, but have some pretty long branches that are not so good.

Do you know if an Infinity stat...

Thanks wormy. I probably didn't pick the right thread to ask my question, about airflow for low-stage (can low-stage cfm be so low that it doesn't circulate well through the rooms for cooling, if no...

Again, a non-pro, but to me something doesn't seem to add up.

I know square footage can't be used for sizing the compressor. But just in terms of airflow, it seems kind of surprising to me that...

Your comment about more airflow is interesting. I was just asking a question about that in another thread, because I'm concerned about it.

If the Infinity has an even lower low-stage than the...

Also wondering if Infinity is worth the extra $. From what I can see, the biggest differences are

(a) the Infinity has a larger difference between low-stage capacity and high-stage capacity,...

Are there ever situations where the lower cfm at low-stage doesn't provide enough air velocity at the floor vents or enough ventilation to make the room comfortable? (even if return air is high on...

I think you were referring to the Bryant 187BNA036.

Do you not like that particular A/C model in general, or just for this application? Looks like this is about the same as Carrier's Performance...

Peace ga-hvac-tech. Hope sometime when I have a question you know the answer to, you don't hold back from helping me out.

Well, I can tell you what I was thinking. It's not always safe to...

Is this a trick question, or are you making fun of us? :toetap:

Are you feeding the dog or a human?

ga-hvac-tech, I don't want to match wits or argue about it bro (or clutter up this thread anymore than I already have). And you may be right, but hear me out to see if this makes sense.

I think...

This forum has been great for me. Went from knowing nothing to knowing enough to be dangerous, and just find it to be very interesting stuff. Can tell the pros on here know more real-world...

Seems like for most furnace brands, for a given heating capacity model, there is a choice of at least two different blower capacities.

But with the Trane xc95m, you can't get a 4-ton blower with...