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Old 07-17-2012, 05:08 PM   #1
EmptyWallet
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Default Master bedroom warmer than the rest of the house....

I know I probably need to get some model numbers and what not of the unit I have, and maybe some measurements to help people out with answering my question....but the master bedroom in my house (built within the past year) is several degrees warmer than everywhere else in the house. I'm talking even the master bathroom.

It's odd. There is one single output vent, maybe that's the problem. There is also an intake vent (small) in the master bedroom.

What could cause this? Any ideas on what to check?
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Old 07-17-2012, 09:11 PM   #2
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Default Re: Master bedroom warmer than the rest of the house....

I am not going to be the one to have the knowledge to answer your question, but I do know more information is needed.

Where are you located?

Is the whole home built in the last year or a master bedroom remodel?

When I lived in Dallas, I had one unit that served only the master bedroom. How many physical units do you have?

How many square feet iin the house?

Single or two story?

Where is thermostat located?

Is it a zoned system? Both heating and AC?
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Old 07-17-2012, 10:44 PM   #3
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Default Re: Master bedroom warmer than the rest of the house....

Friction?
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Old 07-17-2012, 11:51 PM   #4
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Default Re: Master bedroom warmer than the rest of the house....

Damaged feed, not enough flow, unbalanced outlets, not enough flow back to the return - guesses that.
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Old 07-18-2012, 12:00 AM   #5
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Default Re: Master bedroom warmer than the rest of the house....

is the bedroom on the second floor?
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Old 07-18-2012, 01:45 AM   #6
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Default Re: Master bedroom warmer than the rest of the house....

Common problem. In my house in order for the master bedroom to stay the same temp as the rest of the house, I need to keep the door open so that there is enough air flow, otherwise you freeze to death in the winter or swelter in the summer. Its rare in any house for there not to be areas that are hotter or cooler then others. To help with your problem more details are needed like how many windows and doors are in the room, second floor master or main floor? Valuted ceiling? How many returns?

If your inside a year of the house being built you should still be in some sort of warranty. Most builders guarantee each area will not be more then 4 degrees different (thats what my HVAC guy guarantees at least).
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Old 07-18-2012, 04:44 PM   #7
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Default Re: Master bedroom warmer than the rest of the house....

I'm currently out of town and will be back to the house on Friday.

House is 1 story, 1 unit, 1900 square feet. Master has two windows, on one wall spread apart about 8 feet. Wall with windows faces north, so not into the sun at any point.

I'm going to get measurements of the room on Friday.
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Old 07-18-2012, 04:56 PM   #8
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Default Re: Master bedroom warmer than the rest of the house....

Look at Duct work, there should be non on the end of the plenium unless it has a coil in the plenium. If this is done then you will have hot/cold rooms. Also look at how many times a single feed has a Y. Also look and see which way vents are facing they should ALWAYS blow on windows never away. I have seen this before, painters pull them down and then toss them back up and don't realize direction does make a difference.

Air condition systems are designed with flow in mind. When you restrict any flow you cause issues. As mentioned above do you have problems when door is open and closed both?
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Old 07-18-2012, 05:36 PM   #9
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Default Re: Master bedroom warmer than the rest of the house....

I haven't really noticed with the door being shut or closed, but I can check when I get back home. I'll measure the room and take some pictures.

There is a large television at one end of the room, but even with it being off all night long and having it off for several days the room is still warmer significantly than the rest of the house. I thought that might be the problem initially but since I figured out it still occurs when it's off, something else might be going on.
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Old 07-18-2012, 09:34 PM   #10
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Default Re: Master bedroom warmer than the rest of the house....

Your AC unit may be far from the Master Bedroom, therefore you may need to adjust/restrict your outlet vents in other rooms to allow more airflow in your MB.

Is this during a certain time of day, say late afternoon, meaning you may be getting alot of radiant heat from late afternoon sun.

I am sure you will find the answer if you just analyze your system carefully.

Good Luck
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Old 07-19-2012, 12:27 AM   #11
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Default Re: Master bedroom warmer than the rest of the house....

The unit is directly outside the master bedroom window. So scratch that off. LOL.
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Old 07-19-2012, 04:50 AM   #12
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Default Re: Master bedroom warmer than the rest of the house....

http://hvac-talk.com/vbb/index.php
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Old 07-19-2012, 07:48 PM   #13
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Default Re: Master bedroom warmer than the rest of the house....

Quote:
Originally Posted by EmptyWallet View Post
The unit is directly outside the master bedroom window. So scratch that off. LOL.
That's the outdoor condensing unit. It's doesn't have anything to do with the air in your bedroom.

The air handler is the inside piece, and is typically located in a mechanical closet, attic, basement, etc. That's where all the air comes from/returns to, and that's where all the ductwork will be.
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Old 07-20-2012, 12:07 PM   #14
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Default Re: Master bedroom warmer than the rest of the house....

Quote:
Originally Posted by coolreed View Post
Is this during a certain time of day, say late afternoon, meaning you may be getting alot of radiant heat from late afternoon sun.

I am sure you will find the answer if you just analyze your system carefully.

Good Luck
This is the problem with my master bedroom. Southern exposure in NC means the heat load in that room is probably double the other rooms in the house(ranch style, narrow end pointing directly south)
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Old 07-20-2012, 01:12 PM   #15
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Default Re: Master bedroom warmer than the rest of the house....

Quote:
Originally Posted by tpwalsh View Post
This is the problem with my master bedroom. Southern exposure in NC means the heat load in that room is probably double the other rooms in the house(ranch style, narrow end pointing directly south)
Decent windows? Any ability to put up some trees to shade said windows?
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Old 07-20-2012, 01:43 PM   #16
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Default Re: Master bedroom warmer than the rest of the house....

Wait a minute, you said the A/C condensor is right outside the MB window - so all the heat being thrown off by the condensor is being blown AT the master bedroom? Seems we may have at least one answer here.....

We have a small window unit in our MB, when the main A/C kicks off at night the house gets stuffy, so running the little window unit keeps the bedroom nice and cool and comfy without having to run the whole house A/C. I don't know if it saves us any money but it makes sleeping better.....
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Old 07-20-2012, 02:15 PM   #17
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Default Re: Master bedroom warmer than the rest of the house....

Your answer can only be found by a qualified A/C technician that will run a survey of air flow from your ductwork. If it can be balanced, he can do that or tell you why it can't. At that point you'll either have to rework ductwork or add an additional unit to the room.
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