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Usefulness of pre-heating TV carafe?  --  Test added
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alsterling
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alsterling
Joined: 28 Dec 2005
Posts: 682
Location: Dana Point, CA
Expertise: I live coffee

Espresso: La Spaziale S1 (Had Expo)
Grinder: Macap M4 & Gaggia MDF
Vac Pot: Not yet...
Drip: Capresso MT-500 & Melitta...
Roaster: Hottop Digital
Posted Fri Dec 21, 2007, 2:34pm
Subject: Re: Usefulness of pre-heating TV carafe?
 

Craig.......I like HOT water, so our new water heater is set rather high. I suspect that our kitchen sink suffers from mineral chunks and deposits. I don't know why, but I just haven't gotten up the gumption to disassemble and clean the valves and spigot. While I'll do electrical on almost  anything anywhere while the lines are still hot, I hate plumbing in almost any form. Why do most pipe repairs have to be in cramped wet places!?

When I lived in the jungles of Thailand, we used On-demand water heaters running off tanked gas. That was the first time I ever saw that kind of system. And now I see here in the States it's being publicized as this "new efficient" water heater approach. Back then, the units had open flames warming the copper heat transfer unit. I'd guess today they use either electric or a closed flame.

Best, Al

 
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CraigA
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CraigA
Joined: 19 Dec 2001
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Location: Rexdale, Toronto, Ontario, Canada.
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Espresso: PID/PressureMod 2001...
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Roaster: Refurb Behmor 1600, BBQ...
Posted Fri Dec 21, 2007, 2:44pm
Subject: Re: Usefulness of pre-heating TV carafe?
 

alsterling Said:

Craig.......I like HOT water, so our new water heater is set rather high.

Posted December 21, 2007 link

Ours too, 140F!! {:-O

Why do most pipe repairs have to be in cramped wet places!?

Yes, I hear ya there Al!

When I lived in the jungles of Thailand, we used On-demand water heaters running off tanked gas. That was the first time I ever saw that kind of system. And now I see here in the States it's being publicized as this "new efficient" water heater approach. Back then, the units had open flames warming the copper heat transfer unit. I'd guess today they use either electric or a closed flame.

Thanks for that Al! At the Ontario Provincial campsites around the province, they use this "On-demand" system too, off of huge ground mounted propane tanks. {;-)

 
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Eiron
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Eiron
Joined: 12 Nov 2007
Posts: 343
Location: Loveland, Colorado
Expertise: I love coffee

Espresso: Quick Mill 0930
Grinder: Quick Mill 031,...
Drip: TechniVorm KBTS
Roaster: Behmor 1600, Presto Poplite
Posted Sat Dec 22, 2007, 11:12am
Subject: Re: Usefulness of pre-heating TV carafe?
 

alsterling Said:

... When I lived in the jungles of Thailand, we used On-demand water heaters running off tanked gas. That was the first time I ever saw that kind of system. ... Back then, the units had open flames warming the copper heat transfer unit. ...

Posted December 21, 2007 link

Yeah, the first time I saw the same units you describe was in 1980.  Each hot water location had its own small, old, beat up unit, & the shared bathroom was so cramped that the shower would spray water onto its gas-fired heater.  No jungles nearby, but there was an eel pie shop just around the corner.  I was staying at a friend's flat in Islington, London.

No pre-heat report:
2nd day of not pre-heating the carafe went very well.  By the time I got to the last cup (at least an hour after brewing) it was still too hot to gulp!  It looks like not wasting the extra time, energy & water is definitely in my future....

-Greg

 
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alsterling
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alsterling
Joined: 28 Dec 2005
Posts: 682
Location: Dana Point, CA
Expertise: I live coffee

Espresso: La Spaziale S1 (Had Expo)
Grinder: Macap M4 & Gaggia MDF
Vac Pot: Not yet...
Drip: Capresso MT-500 & Melitta...
Roaster: Hottop Digital
Posted Sat Dec 22, 2007, 1:21pm
Subject: Re: Usefulness of pre-heating TV carafe?
 

Interesting......I never thought pre-heating a carafe could sustain even the shortest of threads, but it does support the checking out of every nook and cranny in this hobby.

As for hot water systems in the world, I got to thinking. As I know it, the US is one of the few countries that uses hot water heater/storage tank design, run by natural gas for most residential and industrial construction. We benefit from a rich natural gas supply. In Asia I saw only the propane on-demand units. In Brasil and other parts of South America, on-demand electric shower head heaters are most popular. (see photo below) Most kitchen sinks in Brasil don't even have a hot water spigot. One of our friends, in Sao Paulo, recently had water heaters installed at their residence, but it's costly and not popular. Although the larger hotels do use some form of large storage water heaters. I've never bothered to ask whether they're using electric or gas?

Don't ask me how this relates to preheating a carafe......unless you consider carrying the carafe into the shower to keep the temperature up?

Best, Al

alsterling: electric shower head.jpg

 
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