Need help choosing central heat/AC system
Joe Bailey
7 years ago
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mike_home
7 years agoJoe Bailey
7 years agoRelated Discussions
Help-Central AC/Heating System really this expensive?
Comments (2)While you did receive a quote on the more expensive equipment (2-stage, 16 SEER), the price is high. You would do good to have 1-2 more estimates to get a better idea of pricing in your area. For a quality install with good equipment from a reputable dealer, I'd expect more around $7000-8000 depending on equipment. If you wanted basic equipment, the cost would be less. SEER/EER - efficiency for air conditioner, the higher the more efficient AFUE - efficiency of furnace, same as above, but in your area, probably only need 80% Tonnage required is determined by a heat load calculation, which many contractors don't do and just base sizing off the old units. Not the best way to go, especially if the equipment was incorrectly sized to begin with and the ductwork is inadequate....See Moretime for new heat and central a/c - 'upgrade' frm LP to heatpump?
Comments (24)A properly sized unit should be able to maintain reasonable humidity levels (though maybe not at 78 degrees without a dehumidification mode). The dual-stage unit will help control humidity. The only way of extra dehumidification with the XL16i that I know of is with the TCONT803/Honeywell TH8321 thermostat, which will overcool to control humidity. Ask your contractor why he proposed the VisionPRO IAQ when the BK terminal is already in use by the XL16i, thus not allowing the dehumidification feature of the VisionPRO IAQ (which is great as it actually slows down the blower). If you want an alternative that can make use of the VisionPRO IAQ, I'd go with the XL15i. It's a single-stage unit, but sized properly it should control humidity fine with the added advantage of the VisionPRO IAQ. Here are possible setups (ask your contractor what size he would recommend--I would NOT go with a 3 ton for your size home). Now, there are different air handlers that can go with these units, but the 4TEE3F39 air handler is tall due to the Vortica blower. The 4TWX5024A1000A (2-ton XL15i) with the 4TEE3F31B1000A yields 13.00 EER, 15.25 SEER and 8.60 HSPF. The 4TWX5024A1000A (2-ton XL15i) with the 4TEE3F39A1000A yields 13.00 EER, 16.00 SEER, and 9.00 HSPF. The 4TWX5018A1000A (1.5-ton XL15i) with the 4TEE3F31B1000A (only rated match with the 1.5-ton outdoor unit) yields 13.00 EER, 15.00 HSPF, and 8.50 HSPF. Feel free to print out my responses if it will be easier for you to go over these possible issues with your contractor. Good luck....See MoreHelp With Replacing 2004 Central A/C system
Comments (13)Karen You are asking too much as those on the forum can not survey your site. There is a standard procedure in flushing lines. It is done everyday. There is no reason for you to know the details. It is an accepted practice in the industry. For lines that are concealed behind walls/ceilings etc and must be replaced, they are run outside the home and concealed by a plastic cover running from the condenser up to the attic and connected to air handler or furnace/evap coil. Again not very esthetically appealing to the eye but done everyday. It is important though that existing lineset is the correct size to the new AC condenser setup. IMO...See MoreNeed Help Choosing Replacement Central Air System
Comments (4)1 and 3 would need externally mounted hot water coils and the pump as you say. Be nice to have the all in one unit from First Co. The Bryant quoted can do 16 SEER but not on a mismatched air handler, probably more like 14 SEER. The variable speed blowers on 1 and 3 are nice as well. The Carrier is a 2 stage outdoor unit that rates up to 17 SEER and would qualify for the $1500 tax credit and maybe other utility or state incentives. The A-S proposal is the builder model, not the Allegiance. Not quite as nice of a unit. The system quoted is 14.75 SEER, if a different air handler is used, you'd get over 16 and a tax credit. Pretty dumb of him to quote you the 4TEE3F31....See MoreJoe Bailey
7 years agoJoe Bailey
7 years agoHVAC Consulting
7 years agoJoe Bailey
7 years agoelpaso1
7 years agolast modified: 7 years ago
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