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Old 12-18-16, 09:34 AM   #501
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goo.gl/photos/q9qbB3eYCddpJHAR7
(Estonia lng.) ehitusfoorum.com/viewtopic.php?f=10&t=57499


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Old 12-18-16, 02:21 PM   #502
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Quote:
Originally Posted by kose2ik View Post
A clear HX core? If you also made the outer casing clear you could observe what is happening inside - condensation, mildew, clogging, etc.
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Old 01-24-17, 01:13 PM   #503
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Default Cooker hood exchanger

This is my first post on here, so may go wrong!!!

Thinking of air to air heat exchanger for cooker hood, anyone got experience of cleaning the twin wall plastic signage type of heat exchanger in this application?
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Old 01-29-17, 09:43 PM   #504
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Originally Posted by 1234enough View Post
This is my first post on here, so may go wrong!!!

Thinking of air to air heat exchanger for cooker hood, anyone got experience of cleaning the twin wall plastic signage type of heat exchanger in this application?
Due to grease buildup this is not a good idea, and may actually be illegal, just vent it directly outside. Yes you are losing some efficiency, so keep your stove small, use a multi-speed hood and only use the speed needed to vent the vapors.

If you don't really cook a recirculating range hood may be an acceptable solution, but I personally loathe them. Recirculating Range Hoods
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Old 02-02-17, 10:12 PM   #505
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Default Long tube in tube DIY xchgr

Came across a Utube vid by Tom Heylen 'DIY air heat exchanger - PVC pipe and soda cans' who has built very much what I was thinking of designing. VERY lo-tech, affordable design. With a 35' basement ceiling run I have it should have provide a fairly HE counterflow heat recovery and larger air flow volume It should be much harder to frost plug.

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Old 02-06-17, 10:24 AM   #506
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Looks great!

Be sure and take lots of photos to share.

-AC
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Old 02-06-17, 11:32 AM   #507
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Default Installing a Single Room Energy Recovery Vent



-AC_Hacker
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Old 02-07-17, 06:39 AM   #508
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Default 3-D Printed HX Core

HERE

-AC
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Old 02-08-17, 05:31 PM   #509
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That is a very cool design! I really like the idea of using straws as they are so thin.
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Old 02-09-17, 01:48 PM   #510
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On Marsden's unit, air was brought in, then the fans reversed, and inside air went out through the same unit.

We have seen other units that use a similar principle using mechanical reversing.

The idea is producing very high COPs.

-AC

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