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  1. #1

    One Room Not Cool Enough

    I have a ranch style home, 2200 sq. ft., heated/cooled by a 5 ton outdoor unit and a 4-5 ton indoor air handler. The system keeps the entire home at a perfect temperature, except for the kitchen area. This area is currently served by one supply duct. There is only one house return and it is almost on the opposite end of the house from the kitchen. I have a good HVAC man and we are batting some ideas around which are:

    - Mini split system.
    - Adding a supply duct.
    - Adding a possible return, but the tie in could "overload" the existing return duct.

    I don't really want an air handler in this area, too noisy. The kitchen area is around 10 x 25.

    What is the smallest conventional split system I could use in this area? I would have to have the air handler in the crawl space.
    Would it be possible to move the thermostat closer to this room?
    Would it be possible to have two thermostats for my existing system?

    I really think I may end up needing some form of separate system for this area. Almost all of the house is over a basement with the exception of the kitchen area which is over a crawlspace. I wonder if this is making this area always warmer? The floor is insulated but this area is always warmer or colder than the rest of the house.

    Ideas? I know pricing is taboo but FYI, running a new duct would be around 1K. Not sure what the ballpark price would be too cool that room but that is the kind of information I need to really make a good decision about fixing this.

    Thanks.

  2. #2
    Join Date
    Jul 2006
    Location
    Virginia
    Posts
    4,665
    Add a supply in the kitchen and add a return closer to the kitchen but not in in it

  3. #3
    Thanks for the reply. I have had more time to reevaluate this situation. I really believe that I need a separate system, with it's own thermostat, in this room. Even though it is part of the main house, this area seems to have it's own climate vs. the rest of the house. The thermostat for the HVAC holds perfectly steady at 74. The kitchen area fluctuates higher into the 70's. I have had a window unit in the kitchen window for a couple of weeks now. I find it rather convenient to crank it up while eating back there and then turn it off.
    Now my problem is, finding a mini-split that will allow for blower in crawl space and use duct work. I have seen the cassettes you can put in the attic but I am not sure I want a potential water source up there but this may be the best solution for me.
    Any thoughts?
    Thanks.

  4. #4
    Join Date
    Aug 2007
    Location
    Northern VA 38 degrees N by 76 degrees W
    Posts
    5,060
    Quote Originally Posted by Pirateghost View Post
    Thanks for the reply. I have had more time to reevaluate this situation. I really believe that I need a separate system, with it's own thermostat, in this room. Even though it is part of the main house, this area seems to have it's own climate vs. the rest of the house. The thermostat for the HVAC holds perfectly steady at 74. The kitchen area fluctuates higher into the 70's. I have had a window unit in the kitchen window for a couple of weeks now. I find it rather convenient to crank it up while eating back there and then turn it off.
    Now my problem is, finding a mini-split that will allow for blower in crawl space and use duct work. I have seen the cassettes you can put in the attic but I am not sure I want a potential water source up there but this may be the best solution for me.
    Any thoughts?
    Thanks.
    Install supplies into the kitchen area. If the cold air can not pass over the space to absorb the heat it will not cool.

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