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Old 03-26-2008, 09:32 AM
 
133 posts, read 436,282 times
Reputation: 66
Default Typical costs for 2 zone heating and cooling

Does anyone know the typical cost to change a 1 zone home to a 2 zone home for heating and ac. We have a 3k sq foot home and was wondering how much it would cost approx to make it into 2 zones ..
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Old 03-26-2008, 11:19 AM
 
Location: Boise, ID
1,355 posts, read 3,794,087 times
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I don't know if this will be helpful...

We have 4400 sf and are putting in two units (upstairs/downstairs). The estimate we got was about $5000. We don't live in a really hot area so your units might need to be larger than ours. I think we were quoted for one 3 ton and one 2 ton unit.
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Old 03-26-2008, 12:38 PM
 
Location: Memphis, TN
185 posts, read 639,854 times
Reputation: 110
My home has 3 central air systems and I only installed zone control on one system. I may have overpaid, but my zone control system was $5000. This split one central air system into 2 zones, one for master bedroom, other for my office. This basically added an extra thermastat, a computer board, and some duct work. Works incrdedibly well and saves on utilities.

I also had a zone control system installed for my duplex rental, and that was $3500. Same parts which included extra thermastat, a computer board, and some duct work. I suppose the parts were < $1k and the rest was labor.

If the person above, "Niners fan", is getting the compressors & furnaces in addition to the zone control system then he/she must have some of major discount somehow. From my experience, the compressor alone can run $5,000 for a high effeciency unit.

P.S.: This thread belongs in the housing forum.
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Old 03-26-2008, 10:15 PM
 
Location: Boise, ID
1,355 posts, read 3,794,087 times
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Quote:
Originally Posted by simcity View Post
If the person above, "Niners fan", is getting the compressors & furnaces in addition to the zone control system then he/she must have some of major discount somehow. From my experience, the compressor alone can run $5,000 for a high effeciency unit.
That's true. Our furnaces are fairly new and were set up so that we basically only have to add the outside units for A/C. I didn't think about that.
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Old 03-27-2008, 10:39 AM
 
Location: Johns Creek, GA
6,577 posts, read 20,171,909 times
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Let's first clarify a couple of things.
What you're wanting to do is change the forced air system you currently have from one system to two systems that each operate on a different floor (?).
As opposed to changing a system (one system for whole house) from one zone to 2+ zones (?).

If you're adding another system- splitting the existing system, cost will have a lot of variables, duct work to split system, gas line (or electrical curcuit), line-set length, where the system will be located (basement or attic), and of course size (tonnage).
But if you're talking about zoning the existing system- making 2 or 3 zones then you're looking at somewhere in the $2500- $3500 range. Other than the electronics (circuit board, t/stat) it's the dampers and their placement (running the wire).
So, which way do you want to go?
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Old 03-28-2008, 11:10 AM
 
Location: Grosse Ile Michigan and Sometimes Orange County CA
15,820 posts, read 30,195,002 times
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If you are replacing your ducting it is not too bad. We paid $300 for each additioanl zone that we wanted.
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Old 11-11-2010, 07:38 AM
 
1 posts, read 33,403 times
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hi
im looking ta find out bout zoned heating systems,
advantages and disadvantages installation methods and operation methods, any help or link wud be great
thanks
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Old 11-11-2010, 01:27 PM
 
Location: Johns Creek, GA
6,577 posts, read 20,171,909 times
Reputation: 5062
I've got all these pdf's- but they're to big for C-D, so I always have to hunt for them again on the 'net- anyway:
pdf link for zone systems:

http://www.zonefirst.com/products/DesignManual.pdf

It's pretty complete. And fairly understandable if you have any mechanical thought process.
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Old 09-06-2012, 10:17 AM
 
1 posts, read 18,304 times
Reputation: 12
A different twist...12 year old house...looking to add a zone to control heat in two rooms (Master bedroom/Bath...~ 600 ft) that got shorted when we installed a wood buring insert. Understand the existing system would need splitting but furnace placement is directly below the room so wouldn't need a whole lot of duct work or gas line. Am looking for a contractor ball park...please help
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Old 09-06-2012, 10:55 AM
 
1,679 posts, read 2,018,334 times
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Picking up on K'lege's point.....

It depends on the duct work you have and might need installed....and as he said do you want ONE system with two ZONES....
...or two SYSTEMS for separate areas.

I just had a new Carrier infinity system - furnace and AC - installed. Thermostat is in the LR. I asked about having two zones. (My 2nd floor is SEVERAL degrees hotter than downstairs) My contractor said I didn't have the duct work for it. so basically no way to do it...unless of course I want to do major contruction and installation of ductwork.
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