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Topics1,040,150
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Most Online39,925 Dec 30th, 2023
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Re: HVAC
[Re: Duck_Hunter]
#13789037
11/30/20 01:44 AM
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Joined: Jul 2012
Posts: 22,230
Davedave
Bigfoot Seeker
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Bigfoot Seeker
Joined: Jul 2012
Posts: 22,230 |
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.
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Re: HVAC
[Re: 1ShotNoKills]
#13789040
11/30/20 01:47 AM
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Joined: Mar 2015
Posts: 5,413
TCK73
TFF Celebrity
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TFF Celebrity
Joined: Mar 2015
Posts: 5,413 |
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.
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Re: HVAC
[Re: 1ShotNoKills]
#13789214
11/30/20 05:02 AM
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Joined: Mar 2012
Posts: 11,008
BigDozer66
TFF Guru
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TFF Guru
Joined: Mar 2012
Posts: 11,008 |
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.
2016 Ranger RT188 Charcoal Metallic Dual Console 2017 Yamaha 115 VMAX SHO (VF115LA) SS Prop Minn Kota Ultrex i-Pilot Link 45" 80 lb. Humminbird Helix 10 Mega SI BalZout Console Humminbird Helix 10 Mega SI BBT Bow Mount Trick Step
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Re: HVAC
[Re: Davedave]
#13789223
11/30/20 05:23 AM
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Joined: Mar 2014
Posts: 29,872
Duck_Hunter
TFF Guru
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TFF Guru
Joined: Mar 2014
Posts: 29,872 |
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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Joined: Mar 2011
Posts: 14,283
Bandit 200 XP
TFF Guru
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TFF Guru
Joined: Mar 2011
Posts: 14,283 |
Triton 200 XP 200 Yamaha 0X66
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Re: HVAC
[Re: 1ShotNoKills]
#13789441
11/30/20 02:50 PM
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Joined: Jun 2011
Posts: 6,369
Dave-0
DYSON
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DYSON
Joined: Jun 2011
Posts: 6,369 |
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.
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Re: HVAC
[Re: 1ShotNoKills]
#13789459
11/30/20 03:00 PM
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Joined: Jun 2011
Posts: 6,369
Dave-0
DYSON
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DYSON
Joined: Jun 2011
Posts: 6,369 |
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.
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Re: HVAC
[Re: 1ShotNoKills]
#13789461
11/30/20 03:00 PM
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Joined: Dec 2003
Posts: 21,316
fishmagnet
TFF Guru
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TFF Guru
Joined: Dec 2003
Posts: 21,316 |
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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Joined: Feb 2018
Posts: 702
Donpilot
Pro Angler
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Pro Angler
Joined: Feb 2018
Posts: 702 |
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.
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Re: HVAC
[Re: Duck_Hunter]
#13789544
11/30/20 04:14 PM
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Joined: Nov 2008
Posts: 73
kw565
Outdoorsman
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Outdoorsman
Joined: Nov 2008
Posts: 73 |
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/\
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Re: HVAC
[Re: fishmagnet]
#13789560
11/30/20 04:26 PM
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Joined: Jul 2007
Posts: 50,973
Trickster
Super Freak
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Super Freak
Joined: Jul 2007
Posts: 50,973 |
Who needs a big unit when you already have a big deck?!
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Re: HVAC
[Re: 1ShotNoKills]
#13789590
11/30/20 05:07 PM
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Joined: Nov 2002
Posts: 54,577
RayBob
Super Freak
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Super Freak
Joined: Nov 2002
Posts: 54,577 |
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.
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Re: HVAC
[Re: 1ShotNoKills]
#13789679
11/30/20 06:16 PM
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Joined: Sep 2020
Posts: 164
Buchbass2
Outdoorsman
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Outdoorsman
Joined: Sep 2020
Posts: 164 |
I have one of the split ducts in my house, works great.
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Re: HVAC
[Re: 1ShotNoKills]
#13789768
11/30/20 07:33 PM
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Joined: Mar 2016
Posts: 11
jon doe
Green Horn
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Green Horn
Joined: Mar 2016
Posts: 11 |
4.5 Ton Package heat pump
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Re: HVAC
[Re: 1ShotNoKills]
#13789896
11/30/20 09:22 PM
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Joined: Dec 2019
Posts: 314
FishinDonkey
Angler
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Angler
Joined: Dec 2019
Posts: 314 |
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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