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New Construction- Zone?, AC/Furnace or Heat Pump

Posted by andy1111 (My Page) on
Sat, Sep 29, 12 at 12:09

Need help and thoughts on HVAC.
AC/Furnace vs. heat pump? (heat pumps never seem to heat)
Zoned vs. 3 seperate systems?
Space for outside unit is just 36" from building to property line.

NWFlorida, Coastal Area, 3 Levels
1st floor-800sf Concrete/CMU
2nd floor-815sf 2x6 frame
3rd floor-545sf 2x6 frame

Option 1- Rheem
3.5 ton 13 SEER 13AJN42A01 AC split system
RGPS07EAMGF Furnace
Coil RCFLHM482KC
Arzel 2 zone system
1.5 ton 13 SEER 13PJL180, RHSLHM1817JA Heat Pump split system
$13,199

Option 2-Rheem
3 Heat Pumps, one on each floor
1.5 & 2 ton, 14 SEER Heat Pumps with RHLL series air handler
$15,481

Option 3-Bryant
213BNA030000 Legacy 13 Heat Pump 2.5 TON Unit
FB4CNF030T00 FAN COIL X13 PURON STD TIN PLT
FB4-5-1 00000 5 KW HTR 230-1P
213BNA036000 Legacy 13 Heat Pump 3 Ton Unit
FB4CNF036T00 FAN COIL X13 PURON STD TIN PLT
FB4-10-1 00000 10 KW HTR 230-1P
hz322
TH5220D1003 TSTAT (3)
ARD14 AUTO RND DMPR
SPRD12 STATIC DMPR
All Ducts (Supply, Returns, Grills) called for in the plans
$11,400


Follow-Up Postings:

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RE: New Construction- Zone?, AC/Furnace or Heat Pump

First - Trane (Bryant) has the best rep in the coastal areas. I recently built in a coastal area and put 2 trane heat pumps in for 2 floors.

I also built a larger house with less tonnage than all your quotes. And I had less insulation. Windows and orientation are what matters but 5.5 tons for 2100 sqft is very high - especially for new construction.

The number one problem with HVAC quotes is oversizing...

I'd probably go with 2 units but there are other details that matter more.

As far as furnace, you don't mention what you have available. I suspect that NG is pretty rare in Fl and that is the only fuel where a furnace would make sense. If you don't have NG, you would be a fool to put in a furnace.


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RE: New Construction- Zone?, AC/Furnace or Heat Pump

Trane and Bryant are not the same product, although Trane and American Standard are. Carrier and Bryant are the same. Differences between sister brands are typically only cosmetic and sometimes warranty.


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RE: New Construction- Zone?, AC/Furnace or Heat Pump

Oops - my bad. I must have had a cocktail already....

Coastal = Trane/AS.


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