How much would it cost for a new HVAC system…?

peanutbute

â¦specifically to replace an OE 40-year-old HVAC system in a 983 sq. ft., 2 bed, 1 bath, above ground apartment? The central air crapped out in summer of 2009 and I had to go out and get a 112-pound "portable" room air conditioning unit. Originally set up in the living room, I moved the unit to my bedroom, where I spend a majority of my time at this place anyway, but every other room in the house is miserably hot, despite my best efforts to reduce the temperature when I power down the unit at night and during several periods throughout the day [i.e opening windows and operating fans] with night time lows in the 60's and 70's. Helpful advice is appreciated, along with at least a gisted price range on a whole new HVAC system.

Answer
You can pretty much count on spending $2K per ton. Also, please understand this: you are defeating the purpose of the concept of air conditioning when you open windows and run fans. (edit) -its OK to run one fan, pointing at you. Y'see, fans blow the heat off you, they do not cool the room. Fans actually heat the air slightly. Plus, your body is a heat & humidity pump set at 98.6F.

People think air conditioners simply blow cool air,,,, wrong. The first job of ANY air conditioner is to take the moisture out the air, then its easy to cool dry air...

Now, there are contributing factors; insulation, energy efficient doors & windows, and most important... a very well ventilated attic. If the heat is allowed to stay in there or propagate, that just radiates that heat back down into the house.
You can mitigate your circumstances by keeping direct sunlight out of the windows, keep boiling & frying to a minimum, and even running lights only when needed. If it won't ruin the outside appearance of your house, I've seen those exterior bamboo roll up blinds attached to the edge of the roof at the soffit, keeping sun off the exterior walls.

Do yourself a favor and get the highest SEER rating you can afford. It will pay for itself sooner than you think.

Math Help Please. FINDING AREA AND FOIL METHOD.?

Q. Mrs. Johnson is looking to rent two different apartments. She wants the most amount of space she can afford. She is looking at 2 different options.
Option 1: The efficiency apartment: What is the area?
1. Set up the problem. Remember that Area = length * width
2. Simplify (Hint: use the FOIL Method)
3. If x=8, then how many square feet is the apartment? Write your answer in a sentence.



Option 2: The One bedroom apartment
1. Set up the problem. (Yes it will have numbers and letters in the area and yes you will need to subtract the porch).
2. Simplify
3. If x=4, then how many square feet is the apartment? Write your answer in a sentence.


for question 1 http://s1363.photobucket.com/user/jonny285/media/math_zps6e1a1c75.png.html

and for question 2 http://s1363.photobucket.com/user/jonny285/media/math2_zpsf1894699.png.html

Answer
Option 1:
1) area = (2x +8)(x +3)
2) simplify (using Foil)
= 2x² + 6x + 8x + 24
= 2x² + 14x + 24

3) if x=8
=2 (8)² + 14(8) + 24
= 2(64) + 14(8) + 24
= 128 + 112+ 24
= 264 feet²

Option 2:
1) area = (x +4) (10x) - 40
2) simplify: 10x² + 40x - 40
3) if x = 4
= 10 (4)² + 40(4) - 40
= 10 (16) + 40 (4) -40
= 160 + 160 - 40
= 280 feet²

therefore Option 2 is bigger

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