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iAVS

My first and second iAVS sandponics: the simplest form of aquaponics

Both are working so I shot this video to show how the two are working: The first system has about 40 gold fish while the second (the one with a transparent window in the video) has five. Under the second Read more…

By Aubrey, 2 years2 years ago
Solar

Wow! Smart idea to fill double-walled cavity of greenhouse with liquid soap bubbles

This one was set up by Ross Elliot based on Richard Nelson’s invention of 1994. The cavity is 30 inch thick and R value for soap bubbles is 1 per inch. So it achieves R30 insulation at night when outside Read more…

By Aubrey, 2 years2 years ago
Others

Better way to use a siphon: easy to keep water in two containers at the same level or to make water flow out of fish tank

Initially I got inspired after watching this video: https://www.youtube.com/watch?v=L6ArUM_hTtA. I made this improved version with two more T’s without drilling any hole. Then I saw another Youtuber to build a similar device – sorry I cannot find his video URL. Read more…

By Aubrey, 2 years ago
Others

Portable Charcoal Burning Stove on top of J-Type Rocket Stove to Add Supplemental Heat to Greenhouse

After numerous tests to improve the pellet burning woodgas stoves so that I could use one to add supplemental heat to my greenhouse, I find that all such stoves give out some smoke after the open flames have died out Read more…

By Aubrey, 2 years2 years ago
Others

Wood Gas Stove with Central Closed Top Riser – new design trying to maintain slow woodgas burning (success) and charcoal burning (failure)

Woodgas stove normally has three stages: (1) lighting it up from the top using lamp oil, camp fire starter, or whatever you see fit; (2) gasification to turn wood into combustible gases (H2, CO, methane, etc.), also know as pyrolysis; Read more…

By Aubrey, 2 years2 years ago
Others

Wood Gas Stove with Central Closed Top Riser – exploring sizes and various other factors

Two stoves were built, one mini with food can and one big using 4L paint can and 4 inch tin vent pipe. As shown in four types of woodgas stoves built and compared, it proves that the 4th design produced Read more…

By Aubrey, 3 years3 years ago
Others

Portable Wood Gas Stove: 4 versions compared & tested, the one with closed top central riser is the winner

All variations of this type of stove have been categorized into four groups. Four built accordingly to find out which one does the job the best – complete and clean burning all the way to the end. All aluminum inside Read more…

By Aubrey, 3 years3 years ago
Others

Use 2 cinder blocks and a few paving stones to build the simplest rocket stove

In order to explore more economic and simpler ways to add supplemental heat to greenhouses, I have studied the so-called Rocket Stove. After watching quite a few videos on YouTube, I have come up this configuration which does not need Read more…

By Aubrey, 3 years3 years ago
Solar

The Simplest Way to Add Supplemental Solar Heat to Your South-Facing Room in Winter: Testing Solar Thermal Effect of Air Filter and Window Curtains After Being Painted Black

The title explains everything. I give the links to the air filter and paint I used below. I used this air filter made of fiber glass that I bought from HomeDepot (production link provided): I spayed both the air filter Read more…

By Aubrey, 3 years3 years ago
Solar

DIY Solar Thermal Air Collector 3 – Heat Absorbing Material Replaced

This video shows the solar thermal air heater and collector after replacing the plastic heat absorbing material with three type of air filters. The plastic type tends to give off chemical gas which plants do not like. Three types of Read more…

By Aubrey, 3 years3 years ago

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Recent Posts
  • My first and second iAVS sandponics: the simplest form of aquaponics
  • Wow! Smart idea to fill double-walled cavity of greenhouse with liquid soap bubbles
  • Better way to use a siphon: easy to keep water in two containers at the same level or to make water flow out of fish tank
  • Portable Charcoal Burning Stove on top of J-Type Rocket Stove to Add Supplemental Heat to Greenhouse
  • Wood Gas Stove with Central Closed Top Riser – new design trying to maintain slow woodgas burning (success) and charcoal burning (failure)
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  • Aubrey on Wow! Smart idea to fill double-walled cavity of greenhouse with liquid soap bubbles
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