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Old 02-14-2013, 08:14 PM   #31
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Will the size of my ducts have to be changed?


Check out my decorative looking swamp cooler. I set it up (1st floor outside) on the north side where its pulling in the coolest air, I cut a hole in the house to set the opening in,set it on some wall blocks. I can't turn it on high or it will blow your hairpiece off but on low I can live with it. I divert the air to the right so it bounces off the wall away from me.

Once a person understands the concept of how it works it really cools the house. It's worthless on humid days but we don't have many. I just close all the doors of all the rooms I am not using to make the area to be cooled smaller and I am set. We used the same concept to clear smoke out of a house after a fire when I was working. But those days are over cause I am moving on up to a deluxe air conditioner.
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Old 02-14-2013, 08:19 PM   #32
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Will the size of my ducts have to be changed?


$20 decorative cover for the off season when not in use to keep the cold air out of the house. I probably use this cooler 3 to 4 months of the year. Its just not like having air conditioning but it was better than nothing when I could not afford an air conditioning unit. For that I am grateful.
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Old 02-15-2013, 02:01 AM   #33
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Will the size of my ducts have to be changed?


could anyone tell me from my drawings where the best place to put the return vents in the ceilings? Is it basically as far away from supply registers as possible?
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Old 02-15-2013, 07:04 AM   #34
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Will the size of my ducts have to be changed?


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could anyone tell me from my drawings where the best place to put the return vents in the ceilings? Is it basically as far away from supply registers as possible?

We put ours as you describe, an opposite corner away from vent and its throw.
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Old 02-15-2013, 09:44 AM   #35
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Will the size of my ducts have to be changed?


1.) I read about the pros and cons on rigid duct and flex. As far as return ducting is concerned does rigid or flex come into the conversation?

2.) Is it beneficial to make the return ducts length back to unit as short as possible? meaning every little bit helps
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Old 02-15-2013, 10:41 AM   #36
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Will the size of my ducts have to be changed?


Click here: Big Air Heating & Air Conditioning

>>>>> from the article -To prevent having to call a repairman, Consumer Reports says invest in a more reliable brand, including ones from American Standard, Rheem, or Trane. Any thoughts?
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Old 02-15-2013, 12:35 PM   #37
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Will the size of my ducts have to be changed?


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1.) I read about the pros and cons on rigid duct and flex. As far as return ducting is concerned does rigid or flex come into the conversation?

2.) Is it beneficial to make the return ducts length back to unit as short as possible? meaning every little bit helps

I would think the answer to this is yes, especially if using flex duct. Also curves and turns should be minimal.

I would think that resistance, like in a supply line made of flex, would also be found in a return with flex, but will wait to hear from the experts.
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Old 02-15-2013, 01:42 PM   #38
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Will the size of my ducts have to be changed?


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To prevent having to call a repairman... Any thoughts?
Like with cars... there are two levels to repair work.

One is the basic mechanical components themselves which with few exceptions are essentially the same as they have always been for almost 100 years. The second level is the whiz bang controls and electronics laid over top of those basic components.

The savings from operating efficiencies (X fewer CF of gas, Kwh of electricity, etc) are quickly lost let alone when more than a $5 DIY thermocouple replacement is keeping the furnace from heating the house.. let alone a really expensive controller is needed.
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Old 02-15-2013, 03:17 PM   #39
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Will the size of my ducts have to be changed?


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Originally Posted by Pawl View Post
Click here: Big Air Heating & Air Conditioning

>>>>> from the article -To prevent having to call a repairman, Consumer Reports says invest in a more reliable brand, including ones from American Standard, Rheem, or Trane. Any thoughts?

Bet big Air Heating and Air Conditioning is a Trane or A/S dealer. Consumer reports ratings on A/C and heating brands is very flawed. But they admit the difference of their rating from best to worse, is so slight, it makes no difference.

The brand is really of little importance. The installation is of major importance.

I just condemned a Trane gas furnace, 8 years old, has a bad heat exchanger. While Trane will supply the heat exchanger for free. The customer will be paying a good amount of money for me to change it out.
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Old 02-15-2013, 04:33 PM   #40
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Will the size of my ducts have to be changed?


1.) With a design layout if there are sections that are longer than a 3' or 4' say like 6' would you recommend making the ducts as long as possible that will fit in the attic to reduce joint leaks and ultimately turbulence/friction?

2.) Would you expand on this statement? >>>>>>> The brand is really of little importance. The installation is of major importance

When you say "installation" do you mean getting the right size unit for my house through a load calc, getting the new ducts engineered right and installed with no leaks, getting the right thermostat for my house? Maybe you could suggest the other things you would identify as the necessary things to complete the installation right.

Here is what I think you mean when I interpret that statement that "the installation is of major importance".

I have been a backyard auto mechanic for 45 years. I currently maintain 4 Hondas for my 3 daughters and myself. When I do preventative maintenance on these cars I buy the best replacement parts available because my family is driving these cars. I only stayed with Honda because the 1st car I bought my oldest daughter was a Honda in 1998 so it made my life easier and I had the Honda tools to keep duplicating the same preventative measures all these years. I could have easily started with a Toyota. And what I think you are saying is the different brands are nearly all the same its putting it all together correctly that makes it or breaks it.
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Old 02-15-2013, 05:35 PM   #41
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Will the size of my ducts have to be changed?


The fact that I am installing A/C in a house that only had forced heating I would think I need an engineer to crush the numbers to create the size ducts based on the size unit I go with. Yes?

I have drawings of all the rooms in my house as seen on here. I have the load calculations for him. He probably just needs to walk through my house to get a look - see while I point out to him where I think vents should be based on the calculations. What is this persons actual title and where do I find a patient one. Maybe late 50s like me? Retired would be even better. One with lots of experience. What if I went to my local sheet fabricating metal guy near my home? I actually have one I use.
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Old 02-15-2013, 05:43 PM   #42
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Will the size of my ducts have to be changed?


Sections of what longer then 3 or 4 foot? If you mean sections of a trunk line, sealing joints is part of corrct installation.

By installation. I mean unit sized sized right, ducts sized right, correct type registers for the volume and air through you need.
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Old 02-15-2013, 06:42 PM   #43
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Will the size of my ducts have to be changed?


for 300 you can have these folks design

http://www.audubonsupply.com/browse....t/4,10010.html
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Old 02-15-2013, 08:36 PM   #44
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Will the size of my ducts have to be changed?


1.) Thanks I figured this one out ----> Sections of what longer then 3 or 4 foot? If you mean sections of a trunk line, sealing joints is part of corrct installation.

2.) By installation. I mean unit sized sized right, ducts sized right, correct type registers for the volume and air through you need. ------ Will the correct type registers be based on unit size,duct size,etc,....?
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Old 02-15-2013, 08:53 PM   #45
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Will the size of my ducts have to be changed?


I went to a guy named Steve who I have been using for years who fabricates sheet metal for all sorts of applications. He has made ducts for me in the past. Its funny he never talks much when I do business with him but today I had more knowledge about my goal and I was able to talk shop with him. I also asked him if he knew anyone in the HVAC business who knew their stuff and would patiently work with me putting a system in my house with me doing some of the grunt work to cut cost.
He said he had only one guy he would ever let work on anything for his home so he gave me the phone # and Monday I am going to see if I can meet with him. Lets keep our fingers crossed. If I am not comfortable with him I will look for someone else. I have worked hard to get to this point and this forum has taught me alot I dont intend on settling for less than almost perfect. Thanks Gentlemen - I will update next week - the harder you work the luckier you get!

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