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  1. I wouldn't be surprised. While I certainly did...

    I wouldn't be surprised. While I certainly did expect a 400 dollar jump or so just for the 14.5 from 13 SEER, and I'm sure there is a difference upgrading the furnace, I can't imagine it's that...
  2. I'm sure it will perform better but at a cost of...

    I'm sure it will perform better but at a cost of almost two thousand more, I don't see the value added being worth it. That's my issue with the upgrade.
  3. Makes sense. So knowing that the HVAC guy uses...

    Makes sense. So knowing that the HVAC guy uses York, is there some other York unit I should ask them to price me on? Like I said earlier, one idea from the York rep was to upgrade to the 15 SEER...
  4. This (4 zones) is actually what I was thinking at...

    This (4 zones) is actually what I was thinking at one point.. with the idea that we likely will use that FR, BR, K, mudroom areas MUCH more than the LR, DR, Study area. And in the long term, it...
  5. No separate duct lines? I assume then the setup...

    No separate duct lines? I assume then the setup is to have a damper at each individual ducts? If not, I guess I'm confused on how one can zone without separate duct lines.
  6. So bottomline, will I be OK with that setup when...

    So bottomline, will I be OK with that setup when I want to hook up the automated zoning system?
  7. Regarding the blower, the York rep said something...

    Regarding the blower, the York rep said something like.. "The indoor unit is an TM9X X13 motor, which is not variable speed but is high efficiency." Does that make any sense?

    I'll ask about a...
  8. I decided to go with running two trunks and do...

    I decided to go with running two trunks and do manual zoning for now. Likely next year, when I have some more funds, I'll bring in an HVAC guy to set up the zoning panel, auto dampers, and...
  9. Interesting videos, btuhack. I watched them...

    Interesting videos, btuhack. I watched them both.. a bit over my head technically but interesting nonetheless.
  10. When I keep seeing the fear about ducting not...

    When I keep seeing the fear about ducting not large enough, can you give me an example? Are we talking a scenario where the HVAC guy puts a very small duct (e.g. 4") which of course couldn't handle...
  11. I read this reply and took the questions to the...

    I read this reply and took the questions to the York rep (not the HVAC contractor). I also said I was thinking a 15 SEER instead of the included 13 SEER. She actually took the time to do an energy...
  12. Noted. It may appear that I may be getting...

    Noted. It may appear that I may be getting greedy with wanting 3 or 4, but it sure seems like a nice option to basically shut off that left side of the upstairs in 10 years when most of the kids are...
  13. I believe I understand the concept to be that I...

    I believe I understand the concept to be that I would need one trunk for 1st floor and one trunk for 2nd floor, and each would have a damper. I like the concept of putting the manual dampers in and...
  14. I had actually already spoke to York, then spoke...

    I had actually already spoke to York, then spoke to the York analysis who did the Manual J, then spoke to the Honeywell rep who deals with the zoning equipment. I have asked a lot of questions.
    ...
  15. 2 zone system in new construction..do it now or can I do it later?

    I am having a 2 story colonial 3200 square foot house built in PA. The builder is putting in one 5 ton heatpump, with propane backup. My obvious fear is uneven temps between upstairs and...
  16. Thanks. Sorry about that.

    Thanks. Sorry about that.
  17. Dan, You are the man, but MAN that's a lot of...

    Dan,
    You are the man, but MAN that's a lot of numbers/analysis to comprehend. I will have to reread it a couple times.

    But my initial thought is this..I see what you are saying about the...
  18. It is not "straight A/C", if I understand that...

    It is not "straight A/C", if I understand that term correctly. It is a heat pump. With that said, do I still need to ask why I am getting a 60K instead of the load calc of 43K, or is it a non-issue...
  19. We ended up meeting the HVAC guy AND he brought...

    We ended up meeting the HVAC guy AND he brought along his boss. Again, they assured me we'd be fine with the single 5 ton unit. I asked about 2 stage and they said they wouldn't advise using that. ...
  20. Now only getting ONE UNIT for 3250 sf?

    Just a followup, now that I'm deep into the house build. I am in a bit of a bind. After asking for the Manual J analysis for weeks, the builder never sent anything. Then I met with the HVAC guy on...
  21. Well we're meeting with the HVAC installer today....

    Well we're meeting with the HVAC installer today. I met with another HVAC guy yesterday and did a walkthrough. He was satisfied with most of what he saw, but not all.

    Anyway, are there any...
  22. Got it. Makes sense. And back to my original...

    Got it. Makes sense.

    And back to my original question about 2 system vs. 2+ zones, there doesn't seem to be a consensus from what I can see?

    I guess the other unanswered question is.. SHOULD...
  23. I need an interpreter for my non-HVAC brain to...

    I need an interpreter for my non-HVAC brain to understand these past couple posts! Interpreter needed! :LOL:

    But seriously, what does it mean, for my situation?
  24. Thanks for taking a look at it..it's like Greek...

    Thanks for taking a look at it..it's like Greek to me.
    I guess I was leaning more towards the zoning option (based on your #20 reply, and replies from others) but now you're giving me thoughts about...
  25. Well they sent me some paperwork on the Manual J...

    Well they sent me some paperwork on the Manual J analysis. I'm not sure if this is the full analysis or a summary or what. I don't understand any of it, but at least they sent me something. I'm...
  26. I like the car analysis.. I certainly don't want...

    I like the car analysis.. I certainly don't want to go cheap. I want to go right. Just not sure what right is. But you all are helping me figure it out.

    So if a smaller unit makes zoning...
  27. Yes, we have walls believe it or not. : ) I...

    Yes, we have walls believe it or not. : ) I guess you've seen a lot of very open designs?

    Yes, the FR, breakfast room, kitchen are pretty open to each other and likely is where we'd be 90% of...
  28. I agree fully. In fact, I've been trying to...

    I agree fully. In fact, I've been trying to finalize these details with the builder for weeks. Weeks ago, I emailed the builder and asked for the Manual J. No reply. I asked for months about the...
  29. I like your idea of 3 zones. Although in my case...

    I like your idea of 3 zones. Although in my case (I attached floorplans to first post..adding here again if you want to take a look), I think I'd do family room/breakfast room/kitchen together, and...
  30. Yes I had thought of air circulation, since my...

    Yes I had thought of air circulation, since my many many hours of research taught me a home can sometimes be too tight. So I was looking into doing an ERV.
    I asked the HVAC guy yesterday about an...
  31. So you're saying, IF I do the 2" of sprayfoam,...

    So you're saying, IF I do the 2" of sprayfoam, I'd be able to cool it with 3, maybe 2 tons.. BUT I wonder would I still have the issue with e.g. the kitchen being 75 and bedrooms at 80?

    And...
  32. Your "result" is my concern I guess from what...

    Your "result" is my concern I guess from what I've read.. a hot upstairs. Part of the reason we moved into a newer home was that we wouldn't have that 75 degree downstairs but 81 degrees upstairs...
  33. Philadelphia PA. So you're saying the 5 tons is...

    Philadelphia PA.
    So you're saying the 5 tons is enough. At least that makes me feel better.

    I will ask him if/how he treats the job different knowing it's to be spray foamed. IF I end up doing...
  34. I see. Makes sense. So it comes down to how...

    I see. Makes sense.
    So it comes down to how much faith I have in the HVAC sub. I will say that this builder has a great reputation, and they've been using their subs for years, so if nothing else,...
  35. So what is it about 2 units that is advantageous...

    So what is it about 2 units that is advantageous over multiple zones using 1 unit? You're right, it's not fair, and unfortunately, it just may not be affordable to shell out 6K. We are already so...
  36. So 2 systems and not 2/3/4 zones? What's the...

    So 2 systems and not 2/3/4 zones? What's the advantage?
    And back to my other question, if you're saying it should have 2 units, shouldn't the builder install that as part of the house build, if...
  37. So if manual J only determines what capacity,...

    So if manual J only determines what capacity, what determines 2 systems vs. 2/3/4 zones?

    And how do they take into account that my wife likes the thermostat super high in the winter and super low...
  38. Newbie needs help..builder installing only a single unit for a 3250 sq ft house?

    First off, great site. I have learned a lot here, and am appreciative of any help.

    I am working with a builder and am at the HVAC stage. The new home is 2 story colonial, 3250 sq ft finished,...
  39. So how do I know/get the heat loss/heat gain of...

    So how do I know/get the heat loss/heat gain of the home? Is that something I can find out now, or do I have to wait on the manual J to tell me that?
  40. Noted. I've never built a home before so I...

    Noted. I've never built a home before so I simply am not sure of the options I have as far as subs. i.e. if I wanted a different electrician to do the work, I didn't think I could tell the builder...
  41. Just to give a bit more info, see below. I...

    Just to give a bit more info, see below. I pasted this from a different thread I had done earlier about heat pump vs. propane furnace. But it will probably help here..

    -Philadelphia, PA area....
  42. Yes I've seen this before as an option. But with...

    Yes I've seen this before as an option. But with the current design, there isn't really a place to put such a utility room on the 2nd floor. The 2nd floor is huge, so it's not like room couldn't be...
  43. I did read the reply in post #6 but don't see...

    I did read the reply in post #6 but don't see where it mentioned that 3 tons could be too much. Am I missing something?
    I'll be sure to look into spray foam for the roof underside.
  44. I have read some about variable speed, in fact...

    I have read some about variable speed, in fact was at one point looking at the Greenspeed unit. Even if I don't do that specific unit, I do want to get a more efficient, and overall better, unit...
  45. This is exactly what I'm afraid of. And unlike...

    This is exactly what I'm afraid of. And unlike many scenarios I run into in life, it's difficult for ME to research/analyze and try to come up with the best solution on my own.
  46. I agree, if one knows how to design.....

    I agree, if one knows how to design.. unfortunately I don't, so I'm dependent on the HVAC feedback to the builder. : )

    I guess we'll soon find out if I need more than 5 tons of cooling..
  47. If not in the attic, then both units in the...

    If not in the attic, then both units in the basement?
  48. I looked into geothermal but I simply can't...

    I looked into geothermal but I simply can't afford it (even with the federal tax credit and the long term savings). Doing the spray foam based on the builder's cost estimates.
  49. So when you say 2 would be better for a number of...

    So when you say 2 would be better for a number of reasons, what would they be?

    Regarding the 2nd/3rd opinions, how would one do that if the builder is in charge of the HVAC and uses a certain HVAC...
  50. Building a new home..2 units OR 1 unit with zoning? Newbie needs help..

    First off, I am an HVAC newbie so forgive me if I don't use the correct terminology below. Here we go..

    I am having a home built this spring. The home is about 3200 sq ft. 1600 on each floor. ...
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