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Modding: double boiler Gaggia Coffee
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Tex
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Tex
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Posted Tue May 29, 2007, 6:04pm
Subject: Modding: double boiler Gaggia Coffee
 

expunged - 07/22/2007

Tex: animatedline.gif
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Tex
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Jasonian
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Jasonian
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Posted Tue May 29, 2007, 6:37pm
Subject: Re: Modding: double boiler Gaggia Coffee
 

Interesting.

I'd love to see this work.

 
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Tex
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Tex
Joined: 27 Apr 2006
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Location: Texas - That's God's country to everyone else!
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Espresso: Bunn ES-1A (PID'd), Gaggia...
Grinder: Rancilio MD50
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Drip: Melitta Clarity
Roaster: TurboCrazy &...
Posted Tue May 29, 2007, 7:17pm
Subject: Re: Modding: double boiler Gaggia Coffee
 

Jasonian Said:

Interesting.

I'd love to see this work.

Posted May 29, 2007 link

ME TOO!

 
Tex
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SJM
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Posted Tue May 29, 2007, 7:24pm
Subject: Re: Modding: double boiler Gaggia Coffee
 

okay, I'll bite:

what will it do if it works?

what's the idea?



that's okay, answer me when you stop laughing....
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Tex
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Tex
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Location: Texas - That's God's country to everyone else!
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Espresso: Bunn ES-1A (PID'd), Gaggia...
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Drip: Melitta Clarity
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Posted Tue May 29, 2007, 7:56pm
Subject: Re: Modding: double boiler Gaggia Coffee
 

SJM Said:

okay, I'll bite:

what will it do if it works?

what's the idea?



that's okay, answer me when you stop laughing....

Posted May 29, 2007 link

Who knows what it'll do? If you hear a small BOOM from the direction of Texas you'll have your answer (kindly remember me with affection). Hopefully, it'll merely provide a more reliable & steady supply of steam for the Gaggia. A PID to permit an exact set point for the brew temp and a separate source for immediate & concurrent steaming... who needs the weight of a huge boiler & HX?

Tex: firewrkpurple.gif

 
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SJM
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Posted Tue May 29, 2007, 8:30pm
Subject: Re: Modding: double boiler Gaggia Coffee
 

just don't blow up my friend, Gene, in Kerrville.
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Pressino
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Posted Tue May 29, 2007, 11:03pm
Subject: Re: Modding: double boiler Gaggia Coffee
 

It sounds like an interesting idea. Do you plan to use the thermoblock for brewing and the boiler for steaming? The thermoblock could handle the brewing well, but might be limited as a source for steam.

The main concern with this mod might be the current drain, so you should put it on at least a dedicated 20A circuit. The Coffee is rated  at 1425Watts to draw about 13A at 110V, and adding a thermoblock would push it quite a bit over 15A. You could also use a 220V supply and get away with less current drain (use the formula Watts=Volts x Amps).

Nick
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Tex
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Tex
Joined: 27 Apr 2006
Posts: 840
Location: Texas - That's God's country to everyone else!
Expertise: Professional

Espresso: Bunn ES-1A (PID'd), Gaggia...
Grinder: Rancilio MD50
Vac Pot: Way too many vintage Silex...
Drip: Melitta Clarity
Roaster: TurboCrazy &...
Posted Wed May 30, 2007, 7:13am
Subject: Re: Modding: double boiler Gaggia Coffee
 

expunged - 07/22/2007

Tex: animatedline.gif
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Tex
--
http://www.tinyurl.com/mb4uj - My coffee pages.

http://www.tinyurl.com/2tnv87 - My 'Guidelines For Newbies' page.

http://www.tinyurl.com/2cr3e2 - I sell things for friends & neighbors here. Can I list something for you?

http://www.tinyurl.com/235dfr - BUG is Bunn User's Group (espresso)
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enginerd
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Joined: 4 Apr 2007
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Posted Wed May 30, 2007, 7:39am
Subject: Re: Modding: double boiler Gaggia Coffee
 

I'm not familiar with the steam generator you are using but here are the first thoughts I had.

1-If you are direct plumbing then you can eliminate the reservoir to increase your working space.
2-With a second boiler for steam you are not forcing high pressure water through anything so you may not need pump pressure per se. Instead you could perhaps use a pstat to open a solenoid valve to let direct plumbed water under house pressure to bleed into the steam boiler to refill it. This would greatly simplify the overall plumbing/wiring of the setup.

I am very interested in a setup like this and whether it could work effectively. In theory 1100W should be sufficient to constantly heat 55 tap water to boiling at a constant rate to produce steam on demand. I have much more experience in engineering than espresso making on the other handso someone with first hand knowledge might want to comment.
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DigMe
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Joined: 27 Jan 2006
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Posted Wed May 30, 2007, 8:52am
Subject: Re: Modding: double boiler Gaggia Coffee
 

SJM Said:

just don't blow up my friend, Gene, in Kerrville.

Posted May 29, 2007 link

From what he's said so far I don't think he's using a nuclear thermoblock so your friend who is 300 miles away is probably going to be ok.  :P

bc

 
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