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Uneven heating issue with town home. #4625544
01/06/18 06:31 AM
01/06/18 06:31 AM
Joined: Nov 2009
Posts: 4,977
Houston, Texas
motor_oil_madman Offline OP
motor_oil_madman  Offline OP
Joined: Nov 2009
Posts: 4,977
Houston, Texas
So i bought a townhouse and its two floors, three if you include the parking area below. I was told that since you dont have insulation from the ground, the first floor is going to be cooler. It only has one central heating/cooling system.

Now wth that being said, I want to say the first floor is about 7 degrees cooler than the top floor. The thing is I'm not sure I'm buying into the lack of insulation idea because the vents downstairs barely blow any air compared to upstairs and I think that's more of the problem. Opinions? I'm not really sure why they didn't put in two units. I've never lived in a multi story town home. Maybe this is the norm?


2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: Uneven heating issue with town home. [Re: motor_oil_madman] #4625547
01/06/18 06:34 AM
01/06/18 06:34 AM
Joined: Nov 2009
Posts: 4,977
Houston, Texas
motor_oil_madman Offline OP
motor_oil_madman  Offline OP
Joined: Nov 2009
Posts: 4,977
Houston, Texas
How do you squeeze more air out of the first floor vents? Also, why would they not blow as strong? I was thinking to maybe close off a couple vents upstairs to increase the floor downstairs to the other vents?

Last edited by motor_oil_madman; 01/06/18 06:36 AM.

2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: Uneven heating issue with town home. [Re: motor_oil_madman] #4625556
01/06/18 07:17 AM
01/06/18 07:17 AM
Joined: Jun 2003
Posts: 33,252
ME
eljefino Offline
eljefino  Offline
Joined: Jun 2003
Posts: 33,252
ME
Some of your vents will be blowers and some will be returns. You have to find the combo that works, noone on the internet will know your house better.

One thermostat?

Re: Uneven heating issue with town home. [Re: motor_oil_madman] #4625561
01/06/18 07:31 AM
01/06/18 07:31 AM
Joined: Jan 2012
Posts: 432
Phoenix, AZ
azjake Offline
azjake  Offline
Joined: Jan 2012
Posts: 432
Phoenix, AZ
It's simple. Hot air rises and downstairs is always going to be cooler than upstairs in the winter months. When my company transferred me to Utah in 2002 we bought a brand new 2 story home. The one winter I was there the downstairs was always much cooler than upstairs. I currently live in a single story home with vaulted ceilings in a large (500 sq. ft) living/family room. With the vaulted ceilings that area is always cooler than the rest of the house. The hot air rises principle is one of the reasons I would never own a two story home here in Phoenix. Trying to cool the upstairs in 110 degree heat in summer costs a fortune.


2015 Nissan Murano SL
Re: Uneven heating issue with town home. [Re: motor_oil_madman] #4625572
01/06/18 07:51 AM
01/06/18 07:51 AM
Joined: Jul 2015
Posts: 3,876
New England
madRiver Offline
madRiver  Offline
Joined: Jul 2015
Posts: 3,876
New England
Heat rises. You need more zones(aka heating systems) or throttling on top floor to make first warmer.

Re: Uneven heating issue with town home. [Re: azjake] #4625574
01/06/18 07:52 AM
01/06/18 07:52 AM
Joined: May 2002
Posts: 20,897
Oakville, Ontario
Patman Offline
Patman  Offline
Joined: May 2002
Posts: 20,897
Oakville, Ontario
Originally Posted By: azjake
It's simple. Hot air rises and downstairs is always going to be cooler than upstairs in the winter months.


That's not the case at all in my townhouse. The thermostat is on the main floor and we set it to 72F. It was a bone chilling -9F overnight and our bedroom was only 60 degrees when I woke up. The kids bedrooms are at the front of the house and are even colder than ours! We always need electric space heaters to warm up our second floor bedrooms in the winter here. And our home is not that old, it was built in 2009 and has no leaks from old drafty windows or anything like that. I had the same problem in my previous townhouse, which I also bought brand new.


2018 Corvette (M1 ESP Formula 5w30 & NAPA Gold)
2006 Civic EX Coupe (PUP 5w20 & Fram Ultra)
2010 BMW 328i X-Drive (GC 0w40 & Fram Ultra)

Re: Uneven heating issue with town home. [Re: motor_oil_madman] #4625578
01/06/18 08:08 AM
01/06/18 08:08 AM
Joined: Nov 2009
Posts: 4,977
Houston, Texas
motor_oil_madman Offline OP
motor_oil_madman  Offline OP
Joined: Nov 2009
Posts: 4,977
Houston, Texas
The thermostat is on the second floor here.


2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: Uneven heating issue with town home. [Re: motor_oil_madman] #4625582
01/06/18 08:21 AM
01/06/18 08:21 AM
Joined: Dec 2003
Posts: 9,843
Florida, Cape Coral
Eddie Offline
Eddie  Offline
Joined: Dec 2003
Posts: 9,843
Florida, Cape Coral
Small space heaters in top floor bedrooms at night in very cold weather or electric blankets? Ed


CX5 Touring 2.5L :-)
Re: Uneven heating issue with town home. [Re: motor_oil_madman] #4625584
01/06/18 08:23 AM
01/06/18 08:23 AM
Joined: Oct 2009
Posts: 3,335
Wet side WA
JohnnyJohnson Online content
JohnnyJohnson  Online Content
Joined: Oct 2009
Posts: 3,335
Wet side WA
Witch floor is the return air to the furnace on?


2004 Corolla 125400
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In: EDGE EP 5W-30 Bosch 3311 122537 7-18-18
2006 Duramax 74277
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In: T6 5W-40 XG9100 74705 4-22-18
Re: Uneven heating issue with town home. [Re: Patman] #4625586
01/06/18 08:28 AM
01/06/18 08:28 AM
Joined: Nov 2011
Posts: 4,890
MTL, CANADA
Rolla07 Offline
Rolla07  Offline
Joined: Nov 2011
Posts: 4,890
MTL, CANADA
Originally Posted By: Patman
Originally Posted By: azjake
It's simple. Hot air rises and downstairs is always going to be cooler than upstairs in the winter months.


That's not the case at all in my townhouse. The thermostat is on the main floor and we set it to 72F. It was a bone chilling -9F overnight and our bedroom was only 60 degrees when I woke up. The kids bedrooms are at the front of the house and are even colder than ours! We always need electric space heaters to warm up our second floor bedrooms in the winter here. And our home is not that old, it was built in 2009 and has no leaks from old drafty windows or anything like that. I had the same problem in my previous townhouse, which I also bought brand new.


If a central system and no air leaks like you say, id guess the system installed is not powerful enough. 2009 build should have decent amount of insulation. Wheteher it was done right is another question.

OP, i think the other posters are right, it will always be colder on the lower floor, close an upstairs vent or two and see if it improves. I think the new norm is and should be to insulate all the way to the bottom and not just halfway.


2007 Corolla Red Pearl 155k miles
PP 0w20 & ST 4967

Re: Uneven heating issue with town home. [Re: motor_oil_madman] #4625590
01/06/18 08:43 AM
01/06/18 08:43 AM
Joined: Apr 2004
Posts: 5,222
Texas
JustinH Offline
JustinH  Offline
Joined: Apr 2004
Posts: 5,222
Texas
Don't worry partner, it will be 70 degrees this weekend in Houston.


'11 Hyundai Sonata GLS
'11 Scion XB
Re: Uneven heating issue with town home. [Re: motor_oil_madman] #4625596
01/06/18 08:51 AM
01/06/18 08:51 AM
Joined: Mar 2004
Posts: 20,826
Upstate NY
Donald Offline
Donald  Offline
Joined: Mar 2004
Posts: 20,826
Upstate NY
I would try throttling back some of the vents in the second floor a bit and see if that helps. Heat does rise, you cannot stop that. It could also be an undersized system, restrictive ducting.

I have a Samsung SmartThings smart hub. One of the items that it can control is smart louvers for heating ducts. I would look into it if I had an issue you you mention.

My DE home has 2 entire heat pump systems, one for each floor. But I am assuming it was not cheap. However we will not be using the second floor unless we have our kids or friends sleeping over, so its a good setup for us.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Uneven heating issue with town home. [Re: Donald] #4625616
01/06/18 09:07 AM
01/06/18 09:07 AM
Joined: Jun 2013
Posts: 707
Northeast
Finz Offline
Finz  Offline
Joined: Jun 2013
Posts: 707
Northeast
Originally Posted By: Donald
I would try throttling back some of the vents in the second floor a bit and see if that helps.


This would be my first plan of attack... play with the vents upstairs.

Maybe reposition furniture and stuff making sure nothing is blocking or impeding the airflow downstairs

Another option would be to relocate the thermostat to the first floor... sounds like an involved job but really very simple.


God Bless America
Re: Uneven heating issue with town home. [Re: motor_oil_madman] #4625617
01/06/18 09:08 AM
01/06/18 09:08 AM
Joined: Jul 2012
Posts: 2,378
South Carolina
alarmguy Offline
alarmguy  Offline
Joined: Jul 2012
Posts: 2,378
South Carolina
Its really simple, make sure the downstairs vents are fully open and unblocked.
Close down (but not completely) the upstairs vents and this will force more air to the low level.

In summer you may have to do the reverse as cold air sinks.

With the above said, there very well maybe a "damper"/diverter in the system to adjust air flow to the 1st and 2nd floors, if there is it would be located someplace near the unit and its ductwork inside the home, attic, basement, closet ...

Last edited by alarmguy; 01/06/18 09:08 AM.

14 Road King (current)
08 VStar 1300 Tourer
07 Suzuki C50
Re: Uneven heating issue with town home. [Re: motor_oil_madman] #4625627
01/06/18 09:21 AM
01/06/18 09:21 AM
Joined: Mar 2008
Posts: 5,993
Michigan
ZZman Offline
ZZman  Offline
Joined: Mar 2008
Posts: 5,993
Michigan
Has it been checked for balance in the runs? Do you have a ceiling fan to keep air moving?


2003 Mercury Grand Marquis. PP HM 5w-30 and Fram Ultra
2008 Sebring Hardtop convertible. PP HM 5w-30 and Fram Ultra
2006 Kawasaki Vulcan 900 LT. Amsoil Metric 10w-40
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