Type: Posts; User: smp7015
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Well I was doing some research and the vents I have in the attic are suppose to vent a 104 sq feet of attic space.
There are only three of these vents. So 3 times 104 is 312 sq feet of attic. ...
All this argueing over ventilation an Pv's. All I want to know is giving the pic I posted, are three of theses enough to keep a 1500-1700 foot attic cool with sofet vent's all the way...
Thank god for this post.
I have to say I have been having comfort/cooling problems with my house. I have a 2.5 ton unit and evap coil. I have the same furnace and blower. Model number58sta070. ...
I switched blower motor to Medium Low to see if it makes a difference in the cooling in the house.
I have a 1700 square foot house.
Will changing the blower setting affect how much freon there...
Here is the info on the furnace:
Model number- 58STA070---10112
Seriel number- 1504A26266
Max unit amps 6.7
motor HP 1/3
force W 2.49
How many CFM's is this unit capable of?
I am wondering what size is this evaporator coil.
Also how many cfm's should it be moving?
Is the blower one speed or can it be set from low to high?
Here is what the lable says:
I have sofet vents all arount the house. In the roof I have 3 vents that are like this picture:
Do you think this enough ventilation for a 1700 sq foot...
Thanks for viewing my post. I have had previous post on this site regaurding this issue. I used the manuel J short form at
I was doing a search today and saw this manuel J short form on the centerpoint energy website. Pro's how accurate do you think it is.
Form with my info...
Squashing the quam's of heat transfer.
Based on the study of thyrmodynamics and fire science.
I believe everyone is missing the point about attic temp.
Everyone that lives up north just...
Hey John I am having a similar problem with a carrier system not cooling my house. It isn't an infinity system though. Who built your house?
What was the number you used to call carrier?
Get this they used R11 or R13 insulation in the walls. The also didn't use a radiant heat barrier on the roof. I told the builder about the loss of cooling capacity in the ducts.
He said .......
I have a 1500 Square foot house. The wall's have R13 in them. Home much Heat gain around would R19 save.
dan sw fl Thanks for all your help.
I appreciate it. Being that the actual square footage is 1500 square feet, all my reading on the board, and research I agree with you that 2.5 is ok. Man I...
Here is everything from my measurements I took today.
House is 1500 square feet.
House faces West
Square footage of windows (double pain not that thick)
double pain glass. More than likely not of high quality. I am going to try to get the building materials used in the construction of the house from the builder.
Tommorro when I get home from...
Update on square footage!!!
Going of the appraisal for tax purpose's the total living area is 1840 square feet. This is calculated by the outside slab measurement and doesn't include the garage....
Ok assuming he system is the right size by load anaylisis. It should still be able to get the house down to 75 degree's on a 95 degree day.
What does the code say on what temp you have to plan a...
Thinks all. I appreciate it. I am going above the general contractor and I am going up the chain of command to get this fixed. I will keep everyone posted.
All in all from what everyone is...
Dan sw fl
Thanks I would appreciate it.
Front door has glass panes on it.
1.)Front of house faces West
2.)9 foot walls. Valted ceilings in the kitchen, living room, and master bedroom,...
the problem is the ac can't even get the house to 75 on a 95 degree day. Aslo just to keep it at 80 it pretty much has to run the whole day.
1733 square feet, carrier 2.5 ton, live in Texas
Tech has been out and ac is working fine. Just seems like it has to run all day. Plus it will not get the house to 72-75 on a 95 degree day
The temps I took were with the ac running for a long time.
Ultratec I believe what you are saying is on the right track!
I think the damb builder skimped on the system to save money. The ac...
Tech said he had to add a little freon this time. Said he took out too much.
My conclusion to the whole mess
The AC unit is working properly
tech is coming over today. I will have to let everyone know what he say's.
Whats the registar of contracters?
How do I get hold of them?
The insulation in the attic is as follows:
Thermaglass blown in
The sheet in the attic say's
attic space 1519 sq feet
here is the link for the floor plan to my house
just go there and...
1733 sq foot home. Has three attic roof vents that aren't powered.
What would be the best way to improve attic ventilation?
Bought a digital themometer at walmart.
Duct is R-6
@ 9:42 pm temp at vent in room read 59*
@ 9:50 return air read 75.6
Thats a 16.6 degree drop.
What R-factor whould your recomend for duct in a Houston, Texas attic?
Since this is a Perry Home and the home buyer doesn't have a choice on what size ac there should be what would you recommend if the system's is too small?
From everyone's post I have gathered the...
What should the ideal temp difference be b/t the air entering the return air at the grill and the air exiting in a room at a vent?
Yes the return goes in the attic? I checked the duct for leakage, the supply lines, and the air handler. I felt a tiny bit of air movement where the return air goes into the a/c not much barely...
The ducts are in the attic. The tech is coming tommorro again is there any questions I should ask. The reading on the vent which is farthest away from the unit (I looked at the duct in the attic to...
return air temp is 77 degree's
Air at the vents to room is 64 degree's
My house is a year old. The AC will not get the house below 80 in the middle of the day. With it being 95 degree's with a 53 % humidity outside.
Yesterday a tech came out and did some air...