Again, thanks for all your helpful advice, especially this one:
"And by closing off to many registers you could create another problem down the road. (this is like putting cardboard in front of your vehicles radiator)"
I hear you loud and clear -- I can't imagine the fan motor being happy about this in the long run.
I just have one more question. Just to see how the performance changes, I played around with the dampers last night. I have two of them, one going to the first floor and one going to the second floor. There are five settings for each one: shut, 1/4, 1/2, 3/4, 1. Here are my results:
1st floor damper shut, 2nd floor damper 1 = almost no change in the force of the air on either floor.
1st floor damper 1, 2nd floor damper shut = 1st floor output is way stronger; 2nd floor, no change.
Why would shutting off the 1st floor damper have no effect on either floors? At the very least, I figured it should cut off the airflow to the first floor.
having one unit. Here in the South You will get baked
you can mess it up real fast for it is just too
Tex, or La. Here in the South if the Air Quiets the
can imagine what it does to people when a
support and not a wanted item. It gets hard to breath
unit on hand plugged in for use and just about
Just curious -- I had a horse vet when I was in high school who required an overtime charge of a fifth of Jack Daniels, black label, any time you called him out on a Sunday or to work on a goat. Just wondering if you have a similar charge for all these people who have your number?
having one unit. Here in the South You will get baked
you can mess it up real fast for it is just too
Tex, or La. Here in the South if the Air Quiets the
you can imagine what it does to people when a
support and not a wanted item. It gets hard to breath
window unit on hand plugged in for use and just about
This is Turtle.
About only 20% of my business is Residentiual and if they never called I would be happy. I will go anytime for the Commercial accounts because they don't mine pay good for service. The 20% of residentiual customers are from the old days of my father and brother was in the business with me. If I do all their work through the years, I will go out on sunday and I work Saturdays anyway. If your not on the old customer list. I can't hear the phone at all and my wife answers the phone. She knows who is regular for I have a list of them to look at anytime. All Churches , School board coolers / Big unit for events, Telephone Companys, any old customers, and also that don't have any money to pay. I have some old residentiual customers of My Dad old account and they Ain't got no money to pay the the regular service companys. You get a bunch when you take over a business that has done business for years. Most all these " Ain't got no money " are over 70 years old , most medical condition , and on SSI .
Now if I haven't done your business for years, I can't hear the phone. Now if you have a medical condition it might be a different story, but it better be good. If I catch you in a lie about it, well , get your billfold out for your going to pay big time. I had a old fart pull the medical call on me on Sunday and I got there and he had two units for the house. he could just sleep in the front part of the house and not use the Bed room area. He also had a Guess bed room that he could sleep in -- in the front part of the house [ where it was cool ] and just did not want to not sleep in his bed room. My Work Order and Ink pin went wild.
would be happy. I will go anytime for the Commercial
residentiual customers are from the old days of my father and
years, I will go out on sunday and I work Saturdays anyway.
wife answers the phone. >
T,
I don't do any residential for money, and never have. I didn't have the obligations of an old line outfit, and I saw in trade school where residential work will get you. This is not a reflection on the guys that do resi work... I admire that they have the temperament for it... I couldn't put up with the clientele. A look any day over at Alt.Home.Repair will confirm that's still the case.
That said, I live in a small community that has been growing since it's near Indianapolis. It's still got that small town mentality, and I know the Sheriff, and the town Cops, and the build inspectors, and most of the old folks living on the fringe. Sometimes the Sheriff, or the Township People, or the inspectors, will call me and ask if I can help someone out. I usually do. We're talking the opposite of what you have down there... dead of the winter calls when a older person can't get their electric heat going, or a waitress with three kids doesn't have any electricity. We, in the community, help where we can... whether it's my buddy the master plumber, or the electric utility CINergy, or me and my guys, we try very hard.
Sometimes I'll still get the resi telephone calls when I'm in the shop on Saturday and answer the phone.... Whine, whine, whine.... I messed something up and I REALLY NEED somebody to come out TODAY. I've got a referral list for several local guys who are hungry and good and I send them there, or, maybe some of my guys are looking to pick up some extra cash and I give the caller their pager.
The Cops and the Sheriff and the township people know how to find me if it's something serious... otherwise, I'm 'unavailable'.
Helping your neighbor is what the USA is all about, but you've gotta know when it's 'helping' or just being taken advantage of.
In the responses to this thread there is no direct mention of Manual J and Manual D. Is there any reason to doubt the system specification that would be produced by J and D - and if the resulting design shows that the system will be OK with a single unit is there any reason to doubt the design?
You don't *have to* use 2 systems in a 2 story house, you can use 1 with zoning, but one by itself without zoning is not gonna give you the balanced temperatures between all rooms both upstairs and downstairs. Simple physics....heat rises....With a single system, you might have everything balanced to maintain a constant temp within 1 or 2 degrees during the summer, but all bets are off in winter and vice-versa. With 2 systems that are correctly sized and installed, that goes away
Many thanks for your reply - I have been using Manual J etc to design for cooling only (the temp here never goes below 6C in winter). I just wanted reassurance that having a single unit was not completely stupid. I have been told by some installers that cold air can not be sent up ducts against gravity but I suspected that this was wrong. My system will have individual room thermostats with proportional control as well as balancing dampers (and a static bypass damper).
Don't let gravity get you down. Have you heard of the space elevator? Within 10 years, we will be building space elevators - strong cables that stretch into outer space about 60,000 miles.
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