a short video showing the small solar water heater i designed a couple of days ago. it consists of 125 feet of 1/2 inch diameter black tubing (cost approx $10.00), 4 connector pieces (to connect the various pieces together and to connect it to the house (cost approx. $5.00)), and finally the ‘y connector’ so i could have the garden hose hooked up at the same time (cost approx $5.00). all purchased from home depot. total cost was approx. $20.00. all i did was coil 100 feet of the hose and attach it to a piece of plywood. after 30 minutes of sun the water temperature is about 130-133 degrees and after 60 to 90 minutes it can reach 150 degrees. the coil can hold 2+gallons of water at a time. if you drain and refill several times throughout the day you could easity get 10-15 gallons of hot water a day. i may expand the size of the system. (they sell a 500 foot roll of hose for $35.00. that would be about 10 gallons of water at a time)
Duration : 0:1:51
[youtube iDpZZuAezMI]
January 1st, 2010 at 11:40 am
so do you have like …
so do you have like a thermostate system set up or do you run out there every 30 mins and turn it on
January 1st, 2010 at 11:40 am
the water will be …
the water will be cold if you run it non-stop. it takes about 30 mins to reach 130 degrees in summer time (in desert climate). the highest water temp. i achieved was 157 degrees when i let the water sit in the tube for 4 hours on a hot (100 degree) sunny summer day.
January 1st, 2010 at 11:40 am
that is awsome im …
that is awsome im gonna use that to heat the hot tub i built.
oh ya how long does it take for the water to heat up in the tube or can you run it nonstop without the water getting cold
January 1st, 2010 at 11:40 am
Even if this is not …
Even if this is not safe for house hold drinking. Which to be honest who drinks from the Hot Tap anyhow.? Bu this would be Ideal for underfloor heating. Simply have the water pumped round on a timer. ever 35-30 mins cycle the flow. Simple.
January 1st, 2010 at 11:40 am
Good point. It is …
Good point. It is true that some black plastic hose and garden hoses etc… are not safe to drink from. Many types, however, are made to be perfectly safe to use for ‘drinking water’. i used the ’safe’ type.
January 1st, 2010 at 11:40 am
thanks for the …
thanks for the comment. that is a very good idea
January 1st, 2010 at 11:40 am
it would probably …
it would probably get to hot (at least in the summer months). the tubing is only rated to 180 degrees.
January 1st, 2010 at 11:40 am
Great idea. You …
Great idea. You more then likely already know it, but many watching this video might not even consider. You cannot consume water out of black plastic hose as it leaches all sorts of toxics not for human consumption as does standard garden hoses. I only learned that after living in my motor home and had to purchase the white hoses for drinking water. Would not want someone to get sick, we battle enough! Good idea with lots of possible applications though! Thanks.
January 1st, 2010 at 11:40 am
YOu could tie it to …
YOu could tie it to your Home Water Heater, install an intermittent timer onto a pump that kicks on every 20 mins or so and let it fill your big tank all day long. Insulate the Big Tank Very Well thou.
January 1st, 2010 at 11:40 am
Have you ever …
Have you ever thought about enclosing it in an insulated box? It would get a lot hotter.
I made a solar water heater for my house, most all of my hot water comes from it. It gets similar temps (135F or 55C)as you do, (but it did cost more). I made mine from PVC (much cheaper than copper)
Here is a video about it:
just go to youtube(dot)com(slash)watch?v= KOY49bH7Ocg
January 1st, 2010 at 11:40 am
Thats the ticket …
Thats the ticket rolled up hose piped into a water heater,stripped & painted black.(maybe incased in shower doors?)
January 1st, 2010 at 11:40 am
Awesome Data and …
Awesome Data and work.
have you thought of using a 50 gallon plastic barrel as a storage tank, coiling your tubing on a cone so that convection would create flow and heating 52 gallons?
January 1st, 2010 at 11:40 am
Well if you are …
Well if you are smart you can buy 5000ft of tubing and have hot water for a long as time….He is just showing us how to build, you can always expand to suit your needs…If his 100 fett holds up 2 gallons and you need more just multiply that by the gallons you might need….My buddy has 1500 feet of that tubbing, so i guess he has 30 gallons or so…How long will it take for that water to be used up, you now gonna run just hot water but adjust to your needs
January 1st, 2010 at 11:40 am
This system will …
This system will heat up a little over 2 gallons at a time.
January 1st, 2010 at 11:40 am
Hi, I like the …
Hi, I like the temperatures you reached but how long can you run your water until the heated water runs out and your back to normal temperatures.
January 1st, 2010 at 11:40 am
probably 45 to 60 …
probably 45 to 60 minutes to reach 150 degrees. you could probably get the water to 130 degrees in as little as 20 mins when it is 95 degrees out.
January 1st, 2010 at 11:40 am
What about when its …
What about when its 95 f. outside on a bright sunny day ? How long would it have to sit in the piping under those conditions . Any idea ? thanks.
January 1st, 2010 at 11:40 am
you have to let the …
you have to let the water sit in the piping for 30 to 60 minutes before draining it out for the water to get hot. maximum temperature i’ve recorded so far is 153 degrees.
January 1st, 2010 at 11:40 am
Ill be youd really …
Ill be youd really get some serious temp. output if you put it on the roof facing south. Its amazing youre getting 130 f. – 150 f. water when the water is moving fast.
January 1st, 2010 at 11:40 am
Hey… have you …
Hey… have you ever seen the videos from “GREENPOWERSCIENCE” ? (excuse me for the capitals but I just copied the name) The specific video that you should see is called : SOLAR HOT WATER 2 DIY USING BLACK WATER HOSE
great work, I love it!
Greets from the Netherlands