Announcement Announcement Module
Collapse
No announcement yet.
A house HVAC Page Title Module
Move Remove Collapse
X
Conversation Detail Module
Collapse
  • Filter
  • Time
  • Show
Clear All
new posts

  • A house HVAC

    ok i have bin doing HVAC for over 20 years but i dont design the systems .so i do know how air flows . my sister is getting prices on doing her house on LI NY and im in PA so im trying to help pick the right person to do the job .
    her house has a finished basement with a drop ceiling and the first floor has a large living room and foyer with a cathedral ceiling with a walk way that goes to a bath in the middle and two bed one on each side of the walk way .

    one person wants to put a 4ton unit in the attic and duct down to the first floor with a high return .He said the unit should be up stairs because of the law of physics and the cold should go down and cant work right with the unit in the basement

    the next wants to put the unit in the basement and put floor grills in , he did not say yet where the return should be [ i said to my sister it needs it be up on the walk way ] then for the two bedrooms to use a minni splits .one of the rooms is a guest room and is not used much . this is what i said she should do before the said this is what they were going to do

    so what do you think
    Charlie

    My seek the peek fundraiser page
    http://observatory.mountwashington.o...nal&fr_id=1040


    http://www.mountwashington.org/weather/conditions.php

    new work pictures 12/09
    http://public.fotki.com/hvachawk/

  • #2
    Re: A house HVAC

    I would go with the least obtruse for the house. Heat will always travel to cold. Good placement of duct with the right grill can compensate for some short comings. If you want to P.M. me all the details of the house, I can throw it in a manual J calculator and give you cfm's per room.
    Last edited by Kevin Jones; 06-17-2010, 08:53 PM.

    Comment


    • #3
      Re: A house HVAC

      Question: Does the house currently have any air ducts?

      In a neighbor's older house they have hot water heat and used to have window ACs. Awhile ago they had an air handler installed in the attic with condensing unit on the ground. They ran ducting into each bedroom ceiling and have two returns in the hall. They ran thin ducting where they could to the first floor with registers and returns about a foot below the ceiling. The system works pretty well but it's not perfect.

      My house (also over 50 years old) was setup for forced air heating, but not central AC. Some time ago the furnace was replaced and an evaporator coil was installed. I ended up with a COLD basement, OK first floor and warm bedrooms. By installing thin ducting in the upstairs hall, I now have (one each) a return with damper about 1-1/2 off the floor and another about 1 foot below the ceiling. That helps, but I also had to install special grills where you can adjust the air flow to either blow upwards on about a 45 degree angle for AC and straight out for heating.

      I also found it very helpful to install a nice quiet window AC in the hall and rigged it up so it blows air into the warmest bedroom when the door is left open.

      My recommendation is to find out what's already in the house and also think about what it would take to properly install the needed ducting.


      What ever you do, please check out the companies. Ask neighbors and small businesses in her area what HVAC contractors they have used and who has been good or bad to them.

      Comment


      • #4
        Re: A house HVAC

        the house has hot water heat and no duct work
        we will see what some other contractors come up with
        Charlie

        My seek the peek fundraiser page
        http://observatory.mountwashington.o...nal&fr_id=1040


        http://www.mountwashington.org/weather/conditions.php

        new work pictures 12/09
        http://public.fotki.com/hvachawk/

        Comment

        Working...
        X