CraftWEB Hot Glass Talk  

Go Back   CraftWEB Hot Glass Talk > Hot Glass > General Hot Glass Discussion

Reply
 
Thread Tools Display Modes
  #1  
Old 04-07-2020, 11:43 AM
Max Epstein Max Epstein is offline
Registered User
 
Join Date: Sep 2016
Location: Tallahassee, FL
Posts: 383
Max Epstein is on a distinguished road
Ventilation requirements?

Hey all,

I'm pursuing my shipping container pandemic setup till this all blows over.

I found a small 3ft x 3ft hood stainless hood for $100. Are there any inline/reasonably inexpensive fans that can handle my 150,000btu burner?

I don't want to use my 4500cfm upblast if possible.



Max
Attached Images
File Type: jpg small_stainless_hood.jpg (17.3 KB, 49 views)
Reply With Quote
  #2  
Old 04-07-2020, 12:07 PM
Max Epstein Max Epstein is offline
Registered User
 
Join Date: Sep 2016
Location: Tallahassee, FL
Posts: 383
Max Epstein is on a distinguished road
Found a class 5' x 4' hood as well for $200. That's probably better.

I'm guessing a back side exit will be better than through the roof as well for the fan.
Reply With Quote
  #3  
Old 04-07-2020, 01:44 PM
Pete VanderLaan's Avatar
Pete VanderLaan Pete VanderLaan is offline
The Old Gaffer
 
Join Date: Apr 2002
Location: Chocorua New Hampshire
Posts: 21,968
Pete VanderLaan is on a distinguished road
keep your hood tight and figure on three air changes per minute for nice ventilation. One will be hot, two, tolerable. Insulate the hood, you won't regret it.
__________________
Where are we going and why am I in this basket?
Reply With Quote
  #4  
Old 04-07-2020, 02:11 PM
Max Epstein Max Epstein is offline
Registered User
 
Join Date: Sep 2016
Location: Tallahassee, FL
Posts: 383
Max Epstein is on a distinguished road
Quote:
Originally Posted by Pete VanderLaan View Post
keep your hood tight and figure on three air changes per minute for nice ventilation. One will be hot, two, tolerable. Insulate the hood, you won't regret it.
I'm using Wet Dog's calculator and don't see values for changes per minute, or air volume for the space. Which I remember doing at one point, hmmmm.....

According to them, with an ambient 100*F (outside in FL), I need 1500cfm.
Reply With Quote
  #5  
Old 04-07-2020, 02:27 PM
Sky Campbell's Avatar
Sky Campbell Sky Campbell is offline
Registered User
 
Join Date: May 2002
Location: Gainesville FL
Posts: 1,011
Sky Campbell is on a distinguished road
Hey Max I donít know how you make your money and maybe thatís not an issue. Some of the nicest shops Iíve seen are from people that come from money or already made their money elsewhere. Iím not trying to judge but it sounds like your kinda in between and not wanting to build it yourself but also not willing to pay to have a hood built.

My advice might not apply for you but I would build the hood from some angle and sheet metal. Easy build compared to everything else in the glass shop.
Iíve used bed rails and roofing tin in the past the yellow hvac board on the inside if you need to insulate it. The beauty of the shipping container is itís all metal weld to it, cut a hole for the fan and sheís done. I happen to have some commercial restaurant fans if your interested. They are the up blast centrifugal exhaust fans you see on the roof or outside wall of a restaurant and do a great job of removing hot exhaust.
Reply With Quote
  #6  
Old 04-07-2020, 02:31 PM
Sky Campbell's Avatar
Sky Campbell Sky Campbell is offline
Registered User
 
Join Date: May 2002
Location: Gainesville FL
Posts: 1,011
Sky Campbell is on a distinguished road
If you talking about the shipping container with the two roll up doors its not going to be about turning over the air it’s going to be about flow and movement to remove heat. You can’t calculate a room that only has three walls. That is a casual observation and my opinion. Always error to side of safety.

Last edited by Sky Campbell; 04-07-2020 at 02:33 PM.
Reply With Quote
  #7  
Old 04-07-2020, 03:28 PM
Eben Horton Eben Horton is online now
Registered User
 
Join Date: Apr 2002
Location: Wakefield, RI
Posts: 4,719
Eben Horton is on a distinguished road
I wouldnít ventilate it at all. Iíd put a stack above your furnace flu and a collector avocet your glory hole and go straight up through the ceiling. No fans.
Itís all outside, no?
__________________
<eben epoiese>
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 08:36 AM.


All published comments within these message boards are the opinions of its contributor and does not represent
the opinion(s) of the owner(s) of this website. Please see the Terms of Use file for more details.

Books to Help Artists Avoid Online Scams: Top 10 Email Scams | Social Media Scams

Powered by vBulletin® Version 3.7.2
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
© CraftWEB.com. Opportunity Network. 2008. All Rights Reserved.