- My Forums
- Tiger Rant
- LSU Recruiting
- SEC Rant
- Saints Talk
- Pelicans Talk
- More Sports Board
- Fantasy Sports
- Golf Board
- Soccer Board
- O-T Lounge
- Tech Board
- Home/Garden Board
- Outdoor Board
- Health/Fitness Board
- Movie/TV Board
- Book Board
- Music Board
- Political Talk
- Money Talk
- Fark Board
- Gaming Board
- Travel Board
- Food/Drink Board
- Ticket Exchange
- TD Help Board
Customize My Forums- View All Forums
- Show Left Links
- Topic Sort Options
- Trending Topics
- Recent Topics
- Active Topics
Started By
Message
HVAC Question-sq ft or volume
Posted on 5/11/14 at 7:29 pm
Posted on 5/11/14 at 7:29 pm
I searched on here and online. Everyone suggests tonnage as it relates to sq footage. I have 12 ft ceilings in 3/4 of my house and 14 ft in my living and dining areas. To me, this seems like a lot more air to cool than the old school homes with 8 ft ceiling or even 10footers. My sq footage is 2500. Looking at a 2 unit system, Rheem, 3 tons for the two rooms with the higher ceilings, plus a bed/bath. 2 ton for three bedrooms (all have 12 ft ceilings). Any suggestions ?
5
Posted on 5/11/14 at 7:30 pm to michael corleone
I'd ask the bf to help, but he's a Trane man.
Posted on 5/11/14 at 7:31 pm to michael corleone
Definitely need a 237 ton 2 system unit.
Posted on 5/11/14 at 8:25 pm to Buck Dancer
Rule of thumb is 1 ton per 500 sq ft. But ceiling height, energy efficiency of house, age of house and even efficiency of windows can affect this. I'd ck with a HVAC professional.
Posted on 5/11/14 at 8:28 pm to Gorilla Ball
quote:
Rule of thumb is 1 ton per 500 sq ft. But ceiling height, energy efficiency of house, age of house and even efficiency of windows can affect this. I'd ck with a HVAC professional.
This^
There's no way anyone can tell you whether the spec'd unit is correct without looking at the house plans and knowing the R-value of your residence as a unit. What's happening below your floors and in your attic is important too. Get a trane-d professional to assist you with this issue.
Posted on 5/11/14 at 8:30 pm to Buck Dancer
No way to get a good answer here, too many other variables. Insulation, windows, doors all play a factor. Don't screw this up by getting an answers from the ot. Call around most ac companies will do a load calculation for free
Posted on 5/11/14 at 8:30 pm to soccerfüt
Posted on 5/11/14 at 8:33 pm to michael corleone
Height really isn't a big concern. Tall windows and sheer number of window will increase your head wall heat load. But if you get grills with a greater throw and position your return air girls to create good flow you won't need to increase tonnage. Who cares if the 2'-3' space by the ceiling is hotter then the t-stat set point. You will not feel that temp as you will never be in that space. You simply want to stratify the zone.
Remember, you will only dehumidify the air within the house as long and the air is passing over a 55 degree coil. So if you over size the unit it will run less (it will reach set point quicker) a humid house( greater than 60%) at 70 will feel warmer then a 50-60% humidity space at 72 degrees.
Remember, you will only dehumidify the air within the house as long and the air is passing over a 55 degree coil. So if you over size the unit it will run less (it will reach set point quicker) a humid house( greater than 60%) at 70 will feel warmer then a 50-60% humidity space at 72 degrees.
Posted on 5/11/14 at 8:43 pm to michael corleone
made this same post yest.
Im going with two 3.5 ton rheem downstairs and 1.5 for upstairs bonus room.
3100 heated and 12 to 10 ft ceilings throughout.
Im going with two 3.5 ton rheem downstairs and 1.5 for upstairs bonus room.
3100 heated and 12 to 10 ft ceilings throughout.
Posted on 5/11/14 at 8:52 pm to TIGRLEE
quote:
Im going with two 3.5 ton rheem downstairs and 1.5 for upstairs bonus room.
damn, sonnnn...you're about to drop some cash...
Posted on 5/11/14 at 9:18 pm to michael corleone
Volume /cubic ft.
If u don't account for ceiling height, your unit will end up working twice as hard to cool the space. It will cost u twice as much in power and burn up the motor in your unit
If u don't account for ceiling height, your unit will end up working twice as hard to cool the space. It will cost u twice as much in power and burn up the motor in your unit
Posted on 5/11/14 at 9:32 pm to dbbuilder79
Go with Trane
Posted on 5/11/14 at 9:33 pm to Spankum
Meh, good to have friends.
Shade over 10k was the bid on that unit option.
Shade over 10k was the bid on that unit option.
Page 1 of 1
Popular
Back to top
Follow TigerDroppings for LSU Football News