December 7, 2009 at 8:29 am | Solar Hot Water Collector
- Posted by admin | 25 Comments
This is a very simple trough design you can run a 100′ trough for less than $500.
Duration : 0:10:0
Residential Solar Panels
December 7, 2009 at 8:29 am | Solar Hot Water Collector
- Posted by admin | 25 Comments
This is a very simple trough design you can run a 100′ trough for less than $500.
Duration : 0:10:0
Where do you get …
Where do you get that flexible mirror sheeting my friend?
I have also used …
I have also used PVC in a solar water heater. I havent had any problems, even though in sunny days the water gets up to 135 F (55 C). My heater cost a small less than this one. It is the main source for hot water in my house.
Here is a video about it:
just go to youtube(dot)com(slash)watch?v=KOY49bH7Ocg
He’s gay.
He’s gay.
Fantastic videa, as …
Fantastic videa, as most of them are. The only concern I would have is that galvanized pipe outgasses some pretty nasty stuff when it gets hot. Certainly would use copper or stainless as was suggested in the video.
It would also be better to use PEX instead of water hose. Not sure if water hose is potable safe, but they do use it on houseboats, so who knows.
It would be an brilliant pool heater.
Thanks for all the vids. Cool stuff.
What are you using …
What are you using for the Part C reflective material?
Dont have snow:-) …
Dont have snow:-) and you have a shut off valve with an air gap at night. Also this is used with a heat exchange system and you collect heat all day then use at night.
Works fantastic.
this is going to …
this is going to waste heat when you need it, like at night, water flows through it, and it will cool.. and say, when the thing is full of ice or even snow, your more screwed.. not a excellent thought to do this on your house.
The video does not …
The video does not mention the fact of the high toxicity of pvc when it is not specific for high temperature
I use super-heated …
I use super-heated sand to heat PVC to the point that I can mold it. I’m currently making rain gutters for my house out of 3 inch PVC.
Thanks for the info …
Thanks for the info. You R really educating me.
I’m gonna build this soon in order to try and heat my pool.
No,
It only warps …
No,
It only warps at 170 f+ at smaller wall thickness. This can hold up to 200f+ Also because it is lined with mirrored material and the backside is white, the PVC never gets hotter than 100f. Mirrored or white objects cannot get hot in the sun. Only dark objects. That is why the steel pipe is black.
The PVC pipe is …
The PVC pipe is gonna warp/melt in the sun’s heat.
Sarking foil is 35% …
Sarking foil is 35% mirror and 50% reflective, This is 85% mirror part A and 93% Part C. I have lined a dish with sarking foil, get warm but no real heat.
Sarking foil
Sarking foil
The glass cover …
The glass cover alone will make a huge difference.
Insulation should be reserved for the exit and enter pipe. Place CPVC onside of larger PVC. This makes an air barrier. Connect the CPVC to the steel pipe.
If i place a glass …
If i place a glass cover on top and insulate the back . will it still be cost effective at
32 degrees temp?? any input here is
greatefull ..
i realize that a …
i realize that a half circle is not a right parabala but it seems that the water pipe should have been closer to the opening of the half circle. is there any math that could be applied in locating the best pipe placement? what i really really like about this projest is the fact it is soooooooo do-able!! now add a circlulating pump and a hot water heater with a heat exchanger in it and you have a kick butt system.
Hi,
We have it on …
Hi,
We have it on our website. Mylar is different and usually crinkled. You need a smooth surface.
Dan
At smoke shops/grow …
At smoke shops/grow stores. It’s called Mylar.
circular is a …
circular is a special case of parabolic? A more elongated parabolic shape is even more effective at focusing, but also more sensitive to direction of the incoming light.
I’ve been cutting …
I’ve been cutting some thick wood and i kept the blade as high as the wood. Kickback was huge and now with blade higher it became a lot simpler.
Right. When the …
Right. When the blade is high it’s forcing the work against the table, not resisting feeding the work into the blade.
No problem, most …
No problem, most people assume you want the blade low as possible other obvious safety reasons. It depends on the situation. If you are cutting anything that will start to pinch the blade more as you cut, you’ll want the blade as high as possible. Otherwise the rule of thumb is generally to have the gullets of the teeth 1/8th inch above the material. Not the tips, but the gullets. depending on the blade that will place the tips of the teeth about 1″ up
Where does one …
Where does one buy the mirror film for this project?
I didn’t know that, …
I didn’t know that, thanks.