hvac temp diff in rooms

[spederman]

There is quite a bit of temp change going from room to room of our house. Esp the spare bedrooms. Never worried about it before since i was never in those rooms, but now with a newborn, her room is way too cold. Is this something easily adjusted or is it best left up to the hvac pros?

[danielhv]

Check where the ducts all tie into the unit... feel around on the insulation for anything sticking up... what your looking for is an adjustment lever for a damper. You can regulate how much airflow goes out each duct with it. There should be one on each duct run.... If there are no throttling dampers on it, then you can have one put in (or do it yourself) to regulate the airflow however you need to. If you need someone to get/install a damper for you, let me know... my dad has been doing HVAC work for over 35 years.

[Big Studly]

Check where the ducts all tie into the unit... feel around on the insulation for anything sticking up... what your looking for is an adjustment lever for a damper. You can regulate how much airflow goes out each duct with it. There should be one on each duct run.... If there are no throttling dampers on it, then you can have one put in (or do it yourself) to regulate the airflow however you need to. If you need someone to get/install a damper for you, let me know... my dad has been doing HVAC work for over 35 years.

an easier way would be to adjust a damper on the register if it has one. At my parents house they do, at my apartment, they don't. If they don't, you can just cover up part of the register with cardboard and duct tape. It is kind of ghetto, but it is a hell of a lot cheaper than having a balancing damper installed. If you do have manual dampers in the duct, you can do that as well, but it might be a good idea to get someone to balance the entire system. It could be an energy saver depending on how much air is getting dumped into the space around your thermostat.

[jyro]

There is quite a bit of temp change going from room to room of our house. Esp the spare bedrooms.

Some of those rooms may not have anough return air area under the door. If the door is closed there is no place for the air to leave the room then less warm air enters the room because of the presure buildup with the door closed.

Often times the carpenters leave the house before the carpet is down. When the carpet goes in there isn't enough room under the door for return air. Try leaving the door to the baby's room open and see if it's any warmer.

On most thermostats there is a anticipater option that is a adjustment that can allow the heater to stay on longer each cycle and get the rooms warmer.
http://home.howstuffworks.com/home-thermostat2.htm

[94mstng94]

Some of those rooms may not have anough return air area under the door. If the door is closed there is no place for the air to leave the room then less warm air enters the room because of the presure buildup with the door closed.

Often times the carpenters leave the house before the carpet is down. When the carpet goes in there isn't enough room under the door for return air. Try leaving the door to the baby's room open and see if it's any warmer.

On most thermostats there is a anticipater option that is a adjustment that can allow the heater to stay on longer each cycle and get the rooms warmer.
http://home.howstuffworks.com/home-thermostat2.htm

:haha:

Who runs one of those thermostats anymore? Digital, programmable, FTW.

[Yellowstang]

:haha:

Who runs one of those thermostats anymore? Digital, programmable, FTW.

One of the best money can buy right here. Old reliable!

http://green-lemonade.com/wp-content/uploads/2008/02/thermostat.jpg

[spederman]

Thanks for the tips guys. I'll have to check to see if the unit has dampers. I kinda recall the hvac guy saying something about the dampers when we built the house, so i'll have to go up in the attic.

[jyro]

:haha:

Who runs one of those thermostats anymore? Digital, programmable, FTW.

heat cycles per hour setting is a close approximation of a heat anticipator.

[JESmith]

Are there any return vents in these rooms? Most houses don't have them in small bedrooms. If there is no return air vent in the room and the door is closed, the room will get cold. To get proper ventelation in a room, the warm has to go in and the cold air has to come out. Leave the door open for 24 hours and see if the temp evens out.

[slow84lx]

Ceiling fans get used year round at my house. Mostly just to keep the air temperature the same throughout the house. I always turn the fan off in the room I'm in during the cold times even with it reversed. The house stays comfortable.