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Search: Posts Made By: dragvorl
Forum: Geothermal & Heat Pumps 02-25-11, 08:42 PM
Replies: 1,943
Views: 3,636,527
Posted By dragvorl
Sorry, I intended to post that. I've been told:...

Sorry, I intended to post that. I've been told: for 9kBTU 9' long 3/8 pipe in a 1" spa tube, for 12kBTu 12' long pipe. The guy installed the 9' long in his sistem and it was working OK.
Forum: Geothermal & Heat Pumps 02-25-11, 05:09 PM
Replies: 1,943
Views: 3,636,527
Posted By dragvorl
Yeah, I guess they are hard to manufacture at...

Yeah, I guess they are hard to manufacture at home, but on the other hand you can make a simple tube HE, you can even see it in the YT clip preview picture on the page before.
Forum: Geothermal & Heat Pumps 02-25-11, 05:05 PM
Replies: 1,943
Views: 3,636,527
Posted By dragvorl
Nope, they are not tubes, that is a single piece....

Nope, they are not tubes, that is a single piece. The pics will explain.

Another interesting system.

youtube.com/watch?v=Gq7oU8YBN7c
Forum: Geothermal & Heat Pumps 02-20-11, 12:00 PM
Replies: 1,943
Views: 3,636,527
Posted By dragvorl
Nope, I did not, but I've found this interesting...

Nope, I did not, but I've found this interesting clip on YT. youtube.com/watch?v=t5Gf9DpTcq0 The guy said it is an 8m long coaxial heat exchanger.
Forum: Geothermal & Heat Pumps 02-20-11, 09:11 AM
Replies: 1,943
Views: 3,636,527
Posted By dragvorl
I think I actually found something that could...

I think I actually found something that could give me a good idea for further thinking.
Forum: Geothermal & Heat Pumps 02-17-11, 08:38 PM
Replies: 1,943
Views: 3,636,527
Posted By dragvorl
Thanks for the swift answer. Do you have some...

Thanks for the swift answer. Do you have some idea of where could I find calculations for the kind of heat exchanger I've been talking about? I don't know if the same pipe lenghts as on an normal AC...
Forum: Geothermal & Heat Pumps 02-17-11, 07:26 PM
Replies: 1,943
Views: 3,636,527
Posted By dragvorl
Hi guys, I joined the forum because of this...

Hi guys, I joined the forum because of this thread, so I would like to thank AC hacker and all the others for the useful information I found here. I'm thinking about building a system like this, but...
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