Carrier Comfort Series or Infinity

Vienna, VA

Hi,

We live in a 3 story, 3400 Sq feet house in northern VA and looking to replace our HVAC system. The HVAC company has suggested couple of options:

1. Carrier Comfort Series:
a. Comfort 13 Air Conditioner 4 ton. Model # 24ABB3. 13 SEER
b. 4-Way multipoise induced-combustion gas furnace: 58STA/STX (Series 140). 80% AFUE
c. base series programmable thermostat

2. Carrier Infinity Series: This is recommended by the HVAC company and has a manufacturers rebate.
a. Infinity 17 2-Stage AC. model # 24ANB7 (24ANB748A0030). 16 SEER
b. Infinity 80 variable speed 4-Waymultipoise gas furnance. # 58CVA/CVX Series 150 (58CVA110-f-1-20). 80% AFUE
c. SYSTXCCUID01 Infinity Control User Interface


The carrier Infinity series is more expensive. Q) Are these system good/comparable and also do suggest which one should I go with?

Dublin, CA(Zone 9a)

Can't tell you much about the furnaces from the description, but the Infinity series air conditioner will be more efficient--in your area and given the size of your house, I expect the 16 SEER A/C will be better for you than the 13 SEER one. Here's a website that lets you do some comparisons: http://www.hvacopcost.com/

Greenfield, OH(Zone 6a)

Either product will do a good job. I'm surprised they didn't show you a heat pump option which would be great for your location.

Arlington, TX(Zone 8a)

if you experience weeks and weeks of temps in the upper 20s to lower 40s, I'd expect a heat pump to be among the offers too.

but maybe gas is very cheap and even the HP can't compete on savings?

it does seem a little odd.

(HPs here in DFW aren't all that great - IMHO)

This message was edited May 17, 2012 11:48 AM

Palmerton, PA(Zone 6a)

People I know that live in Va. have heat pumps only (2). They look huge to me and each one only handles one floor of the house, at 60ft long! I know they have had to replace them at thousands of dollars each because they fail after 6 or so years.

I just found this on a site when I asked how much are heat pumps....this may help you...

For home without ductwork, professional installation of a ductless mini-split electric air-source heat pump system (an outdoor compressor and mounting one or more indoor units) for an average home (3 ton capacity) runs about $4,500 -$6,000 or more, depending on the number of indoor units or zones installed.

This message was edited May 17, 2012 11:37 PM

Conroe, TX(Zone 8b)

JMHO, and biased at that, but we've had a Carrier Infinity, 4 ton, for 6 years now, that uses natural gas for heating (home was built for gas heat; I'd have to get a larger breaker box for a heat pump); we haven't had one bit of trouble with the unit, and if we set the temp on 74 or whatever temp, it cools (or heats) the home down to 74 (single story residence, approx 2000 sq ft). Just make sure it's installed by a very competent company, change filters on a regular scheduled basis, and if you're like me, you would clean the outside unit every Spring...you'd be amazed at the trash that accumulates in the bottom of the unit, and the condenser will really work much more efficiently with a good cleaning.

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