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Dec 30th, 2023
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Re: HVAC [Re: Duck_Hunter] #13789037 11/30/20 01:44 AM
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Davedave Offline
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Originally Posted by Duck_Hunter
Use ductless units in the bedrooms so you’re not wasting electricity or air when no one is using them. I have one in my home office and it’s awesome. Efficient and quiet.

1shot, do you want to be a man with a big unit, or be like this guy with his little unit?

You make the call.

Re: HVAC [Re: 1ShotNoKills] #13789040 11/30/20 01:47 AM
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TCK73 Offline
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Nice building, looks good. Who built it? I have been talking with several metal building guys recently while I have been working in that area.

Re: HVAC [Re: 1ShotNoKills] #13789214 11/30/20 05:02 AM
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BigDozer66 Offline
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I wouldn't put one big unit on it (even if one would do it?) as Duck_Hunter said you will wasting a lot of electricity when you don't need it. cheers


2016 Ranger RT188 Charcoal Metallic Dual Console
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Re: HVAC [Re: Davedave] #13789223 11/30/20 05:23 AM
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Duck_Hunter Offline
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Originally Posted by Davedave
Originally Posted by Duck_Hunter
Use ductless units in the bedrooms so you’re not wasting electricity or air when no one is using them. I have one in my home office and it’s awesome. Efficient and quiet.

1shot, do you want to be a man with a big unit, or be like this guy with his little unit?

You make the call.


Actually, knowing one shot from his post history, I was suggesting one big unit and a few smaller ones.


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Re: HVAC [Re: Bob Davis] #13789242 11/30/20 10:04 AM
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Posts: 13,883
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Originally Posted by Bob Davis
That is nice.

thumb


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200 Yamaha 0X66
Re: HVAC [Re: 1ShotNoKills] #13789441 11/30/20 02:50 PM
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Dave-0 Online Content
DYSON
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Im tending to agree, break it down into 2 smaller units. You'll be pulling return air from the shop areas which will be dirtier and full of pollutants-allergens. Have you considered mini split systems for a better zone control?

And thats a sexy building you got there 1Shot.

Last edited by Dave-0; 11/30/20 02:51 PM.

Laws won't fix a sin problem. What this world needs is a revival, change of the heart. ~The Skipper

Age is a number. Old is a lifestyle.
Re: HVAC [Re: 1ShotNoKills] #13789459 11/30/20 03:00 PM
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Dave-0 Online Content
DYSON
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I can hear it now...1Shot and family about to go home and he spits out...

Ok family, its time to go back to "Z-Crib."


roflmao roflmao roflmao

bolt


Laws won't fix a sin problem. What this world needs is a revival, change of the heart. ~The Skipper

Age is a number. Old is a lifestyle.
Re: HVAC [Re: 1ShotNoKills] #13789461 11/30/20 03:00 PM
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fishmagnet Offline
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Who needs a big unit when you already have a big deck?!


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Re: HVAC [Re: 1ShotNoKills] #13789521 11/30/20 03:44 PM
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Donpilot Offline
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Too large of a unit will cool to fast and not remove the humidity. Ever been in a house that is cold but you are still 'clammy'. To big of a u NJ it.

Re: HVAC [Re: Duck_Hunter] #13789544 11/30/20 04:14 PM
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kw565 Offline
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Originally Posted by Duck_Hunter
Use ductless units in the bedrooms so you’re not wasting electricity or air when no one is using them. I have one in my home office and it’s awesome. Efficient and quiet.

THIS/\

Re: HVAC [Re: fishmagnet] #13789560 11/30/20 04:26 PM
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Trickster Offline
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Originally Posted by fishmagnet
Who needs a big unit when you already have a big deck?!

azn

Re: HVAC [Re: 1ShotNoKills] #13789590 11/30/20 05:07 PM
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RayBob Offline
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600-800 sq ft per ton is the old figures with good insulation. I've been out of it 30 years+.

Poor insulation got 400-450 sq ft per ton. Are you conditioning just the 25x25?


Advice? Wise men don't need it. Fools won't heed it.

Re: HVAC [Re: 1ShotNoKills] #13789679 11/30/20 06:16 PM
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Buchbass2 Offline
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I have one of the split ducts in my house, works great.

Re: HVAC [Re: 1ShotNoKills] #13789768 11/30/20 07:33 PM
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jon doe Offline
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4.5 Ton Package heat pump

Re: HVAC [Re: 1ShotNoKills] #13789896 11/30/20 09:22 PM
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FishinDonkey Offline
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masters license in hvac. retired. there are multiple factors needed to run a j-calc to give you an official answer. color of the roof, shading coeffect of windows, number of windows, cardinal direction of the windows, pitch of roof, U or R factors of every material , etc etc. I have a manual J and manual M calc program saved in excel where you can enter the exact details and get the exact heat loss calculations to size properly.... pm me if you want it.....it wont be stamped obviously - but its a lot of work and probably not worth your time-----with that said. going by "rule of thumb" - i wouldn't go lower than 4.5 tons, if I were you, I'd go for a 5 ton system and maybe even a 1.5 ton ductless split on top of it, throw an option 3/4ton for each bedroom....metal dark roof - may get hot..... also- if you aren't going to live in this building- go for window units- sure they cost most to run- but the break even point between paying a ducted/ or ductless system, VS window unit- youre talking about hundreds of dollars to install 3 window units, vs thousands of dollars to install a true system.....

also you're going to get a lot of different answers here....but here's the truth about SEER, manual J, etc. If you turn your thermosat lower than 75 degrees in the summer, or higher than 72 in the winter, you are "outside" of the parameters the unit is designed for. very few people enjoy their home at 75 in summer, so if you followed a manual J, you would be very disappointed.....also ASHRAE has engineers design for the 98% temp range.... IE the temp will 98% of the time be betweeen X and Y degrees in XYZ month---- and it takes into account day and evening, its within 24 hours......so- if its 100+ outside, you are outside of the 98% paramters..... it also takes into account how often it rains, cloudly, etc etc.... Ill copy and paste one for DFW so you can see what im talking about...... either way- anyone installing the system for you should be able to do a basic rule of thumb and size it.....

i got out of the business in 2012 - things may have changed- but- thats my .02.....

http://ashrae-meteo.info/v2.0/index.php?lat=32.898&lng=-97.019&place=%27%27&wmo=722590&ashrae_version=2017

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