340 posts, read 414,887 times 1,135 posts, read 1,624,739 times 589 posts, read 882,928 times 1,345 posts, read 1,756,296 times 5,150 posts, read 5,049,224 times 8,406 posts, read 14,815,803 times Originally Posted by Glmore My home is 1600 sq. ft. , and I replaced the 3.5 ton AC unit and air handler a couple years ago for $2900. That is closer to the lower end than the higher end. The furnace was, and is, fine. Someone said 1 ton per 500 sq. ft., and I agree. I wanted supercooling ability, but was told if the unit cools the home too quickly, it doesn't remove enough humidity. I didn't understand that when I did the first system 12 years ago, but I learned.But in homes the size of yours and mine, zoning simply means closing a vent or two to redirect the air. The master suite is upstairs in my tri-level home, and I closed all the vents on the bottom floor to force more cool air into the master suite, It works well, since I don't use the downstairs bedrooms, They stay cooler anyway, year round.

Our homes aren't big enough to warrant a true zoned system. Originally Posted by Sean_CLT Good luck selling that house. You may not be able to have window units depending on your neighborhood rules. Window units are noisy, air leaks around them, bugs can get in, they are easily stolen and provide an easy entrance for would-be burglars, etc. They are a last resort IMHO. 104 posts, read 221,403 times Originally Posted by vmaxnc Some good info .....could you PM me the company you used for your AC replacement? 3,915 posts, read 2,674,064 times Having paid to replace several ACs myself in different homes, I will add the following. If you are comfortable in your home now, then there isn't any need to change how it works by adding zones, etc. If it is a builder grade system you are changing, you should however look at increasing the efficiency and reducing the noise while you have the opportunity to do so. Stick to a middle of the range unit.

That last % or so of efficiency isn't worth it. You should probably pay for a 2 speed system. They mostly operate at low speed but have the ability to shift higher during periods of a lot of heat or if you change the temp. Most contractors will include venting changes during the install. If you have a vent that is too little or too much, or a room that isn't heated or cooled properly, this is the time to tell them about it. Since you are doing a preemptive install, i.e. it's still working, I'd recommend waiting until they are in a slow period which would be the fall or spring. There are better deals then. Don't forget to check for rebates including those from the power company. 101 posts, read 141,257 times Originally Posted by Jareb Does this rule of thumb apply equally to one and two story homes? Does it apply in a linear fashion as square footage increases? I seem to be ok with two 2.5 ton units cooling a 3,600 square foot two-story house.What is the cost to install an air conditioning unit in a 1,600- square-foot house?

As of 2014, the cost of installing an air conditioning unit in a 1,600-square-foot house falls between $3,000 and $5,000. If the duct work of the central air conditioning unit needs to be installed as well, then this price doubles. How do you compare the costs of a replacement HVAC unit? How much does air conditioning installation cost? This installation price is dependent on the size, design and tonnage of the air conditioning unit. In this case, tonnage does not refer to the actual weight of the unit, but rather the amount of heat that the unit is able to remove from a space during a 24-hour period. selecting window ac unitA 1-ton air-conditioning unit can remove approximately 12,000 units of heat per hour from a given space, whereas a 4-ton air-conditioning unit can remove 48,000 units of heat per hour.best brand central ac unit

How can you troubleshoot a Fedders air conditioning unit? Troubleshoot a Fedders air conditioning unit by checking for common issues such as dirty condenser coils, incorrectly set thermostats and defective fan mot... How do you determine the tonnage of Goodman AC units? Goodman air conditioning unit tonnage can be determined by the unit's model number. This number is located on a plate attached to the back of the unit, nea... How can you test the capacitor on your home air conditioner?window ac repair kit To test the capacitor on a home air conditioning unit, shut off the power supply, discharge the unit and obtain the reading. If the reading is more than ab... How energy efficient is a Trane rooftop HVAC unit? How do you connect a backup generator to the wiring of a house? How much do PV solar panels cost? What is the average cost of a home in Beaufort, South Carolina?

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