Search for Hot Tub Solar in Topics


Dumpster Hot Tub

Artist Michel de Broin apparently loves dumpster diving so much he made his own dumpster pool, er, hot tub. Gotta love the personal size hot tub along with the super safe ladder for entry. Dumpster hot tubvia Make

Topic by fungus amungus    |  last reply


install a hot tub?

Hot tub installation with a used hot tub all parts available

Question by joarleen  


DIY Hot Tub Solar Heating

Hi. I have a solar tub heating system 3/4s complete. It's based on a 100W PV panel to drive a pump, charge the battery and supply the electronics. A 16.5 sq ft solar water collector to heat the water. The heart of the system is a (made in China) DST1020 water temperature controller. My first thoughts are to open the flow of hot water to the tub at around 25degC, and cut it of at around 34degC. Problem - this controller has a reputation as a great little device, but it's a b**ch to program, the various instructions online just don't work. All I want it to do is close the heating dry relay contact at 25C and open at 34C. Easy? No. Has anyone got experience of this controller?

Question by Tubincyprus    |  last reply


wiring for a 220v hot tub?

We have a hot tub that is a 220v. We are not sure how to wire?

Question    |  last reply


uses for an old Soft Tub (soft sided hot tub)?

We have an old 4 person Soft Tub that is missing its motor (broken). The lining is not in very good shape but the exterior of the tub is ok. Any thoughts on projects/uses for the tub?

Question by sueleehall    |  last reply


Free hot tub in Eastern Massachusetts

I have a 7 person hot tub with no pump and an undiscovered leak. Replace the pump and chase down the pipes. Repurpose the wood siding, cover or the shell. This creative community can surely find a use much better than the dump for this resource.

Topic by user866753  


Solar Hot Water question - How can I control the temp of my hot tub when using a solar hot water heater set up?

I am building a solar hot water system for my hot tub. It will be independently plumbed to keep the original heater and pumps intact and operational. My question is, how can I get the solar system to turn on only when the hot tub is cooler than a certain tempurature and have it turn off if the water being returned from the solar system is colder than the hot tub's current temp? Any ideas would be appreciated!

Question by Walke2jd    |  last reply



HOW TO MAKE A HOT TUB HEATER ?

Null

Question    |  last reply


[newsletter] Burger Recipes, Hot Tub, Italian Wedding...

July 3, 2008 Sign-up for this newsletter: function openSubscribePopUp(src){ var emailValidate = /\w{1,}[@][\w\-]{1,}([.]([\w\-]{1,})){1,3}$/ if(emailValidate.test(src.value) == false){ alert("Please enter correct email"); return; } window.open("/newsletter/newslettersignup?email=" + src.value,"newslettersignup1","status=yes,scrollbars=yes,resizable=yes,width=420,height=250"); } Welcome back! O'Reilly Media (publishers of MAKE) are working on an Instructables book. To see how you can win a mention in the book, check out our new Book Contest. The Robot Contest has been extended for two week.! The new deadline for entries is now July 13, so show off your robot's best features! Both the Lonely Planet Travel Tips Contest and the BBQ PDQ Contest close for entries this weekend. Use these last few days to enter an awesome Instructable to win greta travel books or an Instructables apron. Upcoming: Next week we'll be starting our Horny Toad Invent-a-Sport Contest. Win a ton of cool clothes from Horny Toad by submitting your own original sport! "1UP Mushroom" Mushroom Burger! by momo! Traveling by Scooter by dbc1218 Put A Spring In Your Step by xclinic Waikiki 'ahi (Tuna Steak) Sandwich by sbdesigns The Elivinator Project by GWJax Wood-Fired Ocean Hot Tub by nagutron How to Build The BeetleBot v2 by robomaniac Fresh Ground Beef Burgers by rsub8 A Garden Shower in 10 minutes for $8 by Camillo Miller Robot Costume With LEDs by joshf Make your own horseradish by knarx KidWash : PVC Sprinkler Water Toy by m32825 Extended for two weeks! Get published in the Instructables book! Closes for entries on July 6th! A "Jungle Cruise" Playhouse by madhatter1138 How to Get Married in Italy by fungus amungus Incredible HULK Nintendo Wii by BeerBellyJoe Prince Caspian's Sword by KaptinScarlet Now go make something awesome, and I'll see you next week! - Eric Sign-up for this newsletter: function openSubscribePopUp(src){ var emailValidate = /\w{1,}[@][\w\-]{1,}([.]([\w\-]{1,})){1,3}$/ if(emailValidate.test(src.value) == false){ alert("Please enter correct email"); return; } window.open("/newsletter/newslettersignup?email=" + src.value,"newslettersignup2","status=yes,scrollbars=yes,resizable=yes,width=420,height=250"); }

Topic by fungus amungus    |  last reply


12v solar to heat water

Im looking to install a hot water cylinder with a 12v immersion heater powered by solar panels(to add wind later) to my hot tub. the idea is to either heat the whole thing all the time or to at least reduce my power usage on the heat side of the running cost. has anyone done anything like this and have any advice? the basic install idea i have is, solar panel/s to a controller controller to a battery controller to immersion heater was also thinking of installing a normally open relay onto the stat of the heater so when it is at temp a fan heater would kick in, but that would be a later install if the water heating would work. any info would be great, if i get enough info i will be doing this and making it into an instructable to further help adopt this to work better. thanks....

Topic by gareth.collier.1985    |  last reply


Anyone know where I can get a low cost, low power(1) solar pump,

It will be used to pump hot tub water(salt) or glycol 9feet vertically, than through an accura radiator in a thermal box and return to tub or another exchanger in tub. I don't know what kind of backpressure I will experience but maybe 10psi? any guesses. Most pumps I see are about $100. I need a lower cost. Thanks good luck

Question  


Solar Hot water question

Has anyone put a glass cover on a solar trough or know the specs on if this would help or hurt the performance? I have to keep the snow off in the winter due to heavy Michigan snow...

Question by Rainh2o  


Glass covered solar trough?

I have seen a lot of designs for solar troughs but I have not seen any with a glass cover on them. Why not? I want to build a solar trough to heat water for the hot tub but I need it to be able to shed michigan winter snow without filling with snow and wondered if the glass would interfere with the operation

Question by Rainh2o    |  last reply


Anyone know a water tight and strong way to secure all pipes coming in and out of a contrete in ground pool? Answered

My Dad and I will be building a pool, in ground, this summer but are worried about the water-tightness of any connect made with piping in and out of the pool. Any ideas?

Question by joearkay    |  last reply


Solar Hot Water Preheater Idea?

Hi everyone, I'm new, from the UK, I will shortly be moving into a static caravan/mobile home on family land for a few years to save up, so with money saving being the aim, I'd like to run this little project by you all.  I'm thinking about making a solar collector and placing it on the roof of the home, as large as I can afford (caravan is 12 wide) and feeding that into a heat exchanger inside an old 47kg LPG gas cylinder (I have access to several old cylinders and believe it can hold around 110 litres, so could even use 2?) and having the mains inlet at the bottom and outlet to the boiler at the top.  For the heat exchanger, I'm thinking cut both ends off and drop a coil through from top to bottom and weld back up but i'm open to suggestions. I want to a heat exchanger instead of having the mains water go round the solar collector, as it can get cold in the UK at night, even in the summer and I dont want it freezing in the winter (i'll have enough worry of water pipes freezing anyway), so will use some form of copper friendly anti-freeze. I'll need a pump for this, as the collector will be on the roof, above the cylinder, so thinking to run it on a light sensor, but how complicated would a thermal switch be, so when the temp in the collector ir warmer then the cylinder be to make? If anyone knows of a  place for the circuits (or of the shelf product), I can see if it's something i'm competent enough to take on.  One last thing, Would having the cylinder painter black and left in sunlight be a good idea. Would it get hot enough to cause problems with the water mains pressure?  Look forward to your feedback and advise.  Tuns

Question by tuns    |  last reply


Want collaborators for a solar hot water project

I have had this idea for a while and I decided to try and make it a collaboration instead of just trying to do it by myself. I thought there was a way to start a collaborative instructable, but I don't see that option now. Does anyone out there know how to do a collaborative instructable? Maybe that option appears right before you publish it? I don't know if the best way to share ideas is this forum, or the collaborative instructable (if it exists). ******** Here is the idea: I have a solar box cooker, which is shown in this instructable. On days when I have nothing to cook, I often put a kettle of water in it, so when I get home from work I have very hot water that can be used for cooking pasta, making  tea, coffee etc. I pour that water into a thermos, and it will stay hot until the next day. I would like to design and build a solar cooker that is dedicated to this task with this tentative list of requirements: *It would be fairly small, just large enough to hold a kettle *It would be easy to put the kettle in and take it out *It would be weatherproof, so it could sit outside for months at a time *It would be designed in such a way that it would collect energy from the Sun during a large portion of the day, without need of any sun-tracking mechanism *Ideally, it would have a mechanism that would transfer the water to a thermos as soon as it boiled, or got to a certain temperature. Looking forward to hearing from people who want to collaborate on this. As soon as we have decided on where to share ideas, I'll post mine.

Topic by dlginstructables    |  last reply


What would be a good material to line a hot tub with?

      Im working on building a hot tub near my house. Its going to be a pit with a layer of mud, clay and hay for some insulation as well as a solid wall for the tub. Now im just looking for a material for a lining on top of that. I've looked at cement and epoxy resins which both look like a tricky and expensive way to do it. Now im thinking I'm going to have to just use some plastic like visqueen or something but I'd like to see what the great instructable community has to brainstorm on the matter.       One thing to be taken into account is the fact that im building this hot tub 300 yards up a mountain so whatever materials I use must be able to fit in a 4X5 cart. I have pulleys and things to make weight not too much of a concern. Thanks for your help guys!

Question by golben    |  last reply


Help! Simple but difficult way to semi stick reflective mylar to sheet metal

Wow, the whole question fit in the Topic line!  Amazing! Well, anyway, we're in the process of finalizing a design for a solar hot water heater and are still trying to figure out a good/better way to stick our mylar to our sheet metal.  The sheet is about 10 ft. (sorry about that old fashioned non-metic system usage, but we're on the U.S.-Mexican border and most of the things here in Mexico are still measured in the old system - sigh) by about 4 ft. We have used axle grease - it's o.k. but hard to spread and to make into a VERY thin film.  If the film is not thin bulges appear in the mylar since itself is only about 2 mil thick.  It was good, on the other hand, because it allowed us to position the film correctly on the metal sheet... So, this time we tried silicone - out of a spray can.  It also seems to be good, perhaps a little better since we can spread it with a small paint roller but after several days it's not holding the mylar down well enought (which is probably to be expected since we're using silicone and it's not really sticky). So, we need something which will allow us to position the film (slippery) while being a very, tiny, wee, itsy bitsy sticky in the long run.  It cannot of course be anything biodegradable - like honey - yuck - for obvious reasons (it's going to be in the sun and eventually it will, biodegrade, into who knows what). Maybe silicone and ... Elmer's glue???  We're stuck.  And, after googleing till our eyes have dropped out, we can't find any reflective mylar with a sticky backing.  What the heck do they stick on those window tinting sheets??? Anyway, any help would be greatly appreciated and of course, Have a wonderful afternoon!  :)

Topic by frazelle09    |  last reply




Desperatly seeking low temperature or power failure alarm for hot-tub. Any ideas on DIY or hacked comercial product?

I have a serious need for a sensor that either detects when my hot-tub temperature drops below a certain point, or when the electricity supplied to my hot tub is disconnected. A wireless remote alarm would be the best, but wired would also work. I found this need when the power to my hot tub failed and some of its plumbing froze. I am willing to use any microprocessor or even modify an existing device to fit my needs. The commercial versions are a little pricy for my budget. Any help would be greatly appreciated.  Is this a great place or what?

Question by rookk    |  last reply


Would a Tesla Turbine work in a solar updraft tower?

I was playing around with making a small scale solar updraft tower and I was curious if I could use a tesla turbine instead of a turbine with blades. Would the Chimney effect be enough to drive a tesla turbine?

Topic by thecoonskin    |  last reply


Robotic Drink Mixer, Camping Hot Tub, Rainbow Cupcakes

Robotic Drink Mixer Camping Hot Tub Delicious Rainbow Cupcakes LED Pinball Table Halo Costume Armor Easy Light-Up Table Scallop Your Fretboard Futuristic 10W LED Lamp Duct Tape Boat Live With Insight Anodizing Titanium Rings Take Great Close-Up Photos Playful Random Light Ball Fix Bent CPU Pins Repair Wire with Sugru

Topic by randofo  


Making a solar pool heater?

I am planning to make a solar water heater for my kids little pool and am wondering if I could use PVC piping and Plexiglass or will it get to hot and melt them?

Question by chrisandamanda    |  last reply


3D Spherical Display, Tailgate Hot Tub, Turkey Recipe

3D Spherical Display Tailgate Hot Tub Ultimate Turkey Recipe Modular Pie Cosahedron 4-Minute Chocolate Mousse How to Microwave Corn Award-Winning Pumpkin Pie Homemade Pie Crust Easy Knit Hat Pattern Make Infused Oil Classic Gravy Recipe Blinking Bicyclist Armband Turn a Belt Into a Pen Mysterious Ring Magic Trick Installing Chair Rail Make a Backyard Path Arduino Music Responsive Light Instructables.com - 82 2nd St. - San Francisco, CA

Topic by randofo  


Super iPod, USB Fridge, Wood-Fired Hot Tub...

Sign-up for our newsletter here. Nov. 29, 2007 Welcome back. Don't forget to enter our Thanksgiving ReuseChallenge. Win an engraved bamboo cutting board! Check out all these cool Instructables! $5 Mini USB Fridge! Keep your drinks coldnext to your computer with the power coming out of your USBport.postedby babblin5 on Nov 28, 2007 High-powered LED Mag-lite Conversion Make you Mag-Liteshine brighter and longer with the addition of a dozen LEDs. posted by MustangChris429 on Nov 27, 2007 How to Make Delicious, Healthy Homemade Potato Chips With aMicrowave! Make your chips withwhatever seasonings you like!postedby thatkidwithayoyo on Nov 22,2007 How to build a wood-fired hot tub It's getting colderout there so build a hot tub for less than $75 and stay warm thiswinter.postedby veloboy on Nov 26, 2007 How To Turn an ice cream Stick Into aKey Make a copy of a keywith a popsicle stick and some simple tools.postedby tycoyoken on Nov 26,2007 Replicating body parts in plaster Preserve a part ofyourself forever with a plaster replica.postedby donnauwanna on Nov 25,2007 Super iPod Mega is the new mini soit's time to make an iPod pillowcase that plays music and has fabricbuttons to control it.postedby sun on Nov 24, 2007 Win a laser cutter worth over$15,000! Cook a Chicken in 15 minutes with an old can, a beerbottle, and some hay. Warm yourself up witha quick fire that delivers a roasted chicken. posted by dandym on Nov 22, 2007 The Poor Mans Paint Job: How to paint your car for$75 Try on a different carcolor with this new trick for painting with Rustoleum.postedby Styluss on Nov 27, 2007 Ultra-cheap router lift Make the router lift onyour own and save over $100. postedby Vestus on Nov 25, 2007   Now gomake something awesome, and I'll see you next week! -Eric

Topic by lebowski  



Homemade Spa?

How about a wooden frame with a rubber/plastic liner and an electrically safe pump and heater cotrols

Question by bmatts    |  last reply


How can i connect a solar air compressor to an A.C. so that it can cool my house?

I wanna build a project for my engineering educational syllabus plz guide me anyone how can i use solar air compressor to cool my house by A.C. Climatic conditions of my town :- Hot round 38/22 Celsius. and mostly moderate humid. Please guide me about my project

Question    |  last reply


DIVERT EARWIGS FROM WHERE WE DRY OUR HOT TUB SWIM WEAR ?

Basically wife and I enjoy an evening hot tub dip, under a deciduous tree in a large garden. Then with robes on we drop the swim wear and hang it on a wall of our house to dry. The next morning my wife usually finds a resident earwig in her swim suit. I can only surmise the larger one piece suit holds more attractive moisture for the bug which would have to travel five feet up a newly painted lap siding wall to reach a pot-metal dual hook.  There are no night lights. We live at 5500' in a desert climate and the garden is automatically watered morning and evening three times a week My wife wont let me put a 24 volt charged tape because we watch grand children daily. What to do ?

Question by iceng    |  last reply


heating water using the sun

Hi I want to install a hot water system, as cheap and simple as possible.  The best idea I have found is to connect a new pipe to the main storage tank, and run it the 70 metres to the house, overground, so the sun heats it.  This will work, but it needs a one-way valve at the tank end to stop the hot water entering the storage tank and heating that.  The normal plumbing valves for this need a high working pressure, but our supply has only 2 metres of head at the point of connection.  Anyone know how I can get round this? Phil

Topic by asimplerlife    |  last reply


Can I combine my oil-fired forced air furnace & oil-fired domestic hot water heater? And then tie in solar heated water?

Currently, we have an oil-fired forced air furnace and an oil-fired domestic hot water heater.  I would like to combine the domestic hot water heater and the furnace somehow so we can heat them both by solar heated water from a panel on the roof, and use oil as a back up fuel.

Question by cscott2008    |  last reply


Use car radiators for solar collectors. Any advice?

I have salvaged 2 car radiators, they aren't leaky. I want to use them for active closed loop solar collectors. Any advice? My current plan is to put them on the roof (in a hot box), then plumb them into an old water heater in the attic. My hope is they can recirculate glycol in a closed loop, convection only, but I may need to install a thermostat and pump. Anyone have experience in this? I want to dump the heat to my 2 water heaters in the basement (they are plumbed in tandem, so I can use the 1st tank for solar boost and 2nd tank for final temperature control). Heat exchangers: either the Butler Solar Wand, or Brazed Plate Heat Exchanger (single or parallel). Differential Temperature Controller from www.jc-solarhomes.com. Any advice or suggestions hugely welcome. thanks in advance, Chris

Question    |  last reply


Wooden Necktie, Build a Mongolian Yurt, Racing Mower

Wooden Necktie Build a Mongolian Yurt Racing Mower Portal Cake is a Lie Make Beer Guitar Tube Amp Double Helix Lantern Wood-Fired Hot Tub Steampunk Bonsai Lamp DIY Solar Setup Shopping Cart Bike Honey Bee Habitat Trigger Green Lights Fluorescent Floor Lamp Build a Cajon Drum

Topic by randofo  


Without Hot Air: Mackay's new Book on Global Warming

My friend told me about a new book by David Mackay. I've added screenshots of two of the really nice graphs he put together in his book. Says my friend:Forwarded Message:David Mackay, Cambridge U Physics Professor and a flat-out rockstar inthe field of statistical inference, has written a book on SustainableEnergy, which he is (as usual) giving away for free on his website. http://www.withouthotair.com/There's also a few slide decks for the overview: http://www.inference.phy.cam.ac.uk/mackay/and a blog: http://withouthotair.blogspot.com/I'm not much through it yet, but the gist seems to be putting realnumbers on the size of the energy problem, much as Saul Griffith hasbeen doing. It's written in his usual style, which is to say it readslike common sense you feel you should have known all along.

Topic by nagutron    |  last reply


What would you do with a big satellite dish?

That's right. I have just become the proud owner of a big oldschool satellite dish. It is made from fiberglass and has some of its support/mounting hardware. I have some ideas about what I want to do with it but I'd be glad to hear your ideas too! Brainstorm away!

Question by snotty    |  last reply


How to build a portable solar gain heater?

What I have in mind would be....a frame with wheels, with plexiglas on the front, black on the back, air intake on the bottom, black stacks of aluminum cans inside to funnel heat upward....and a flexible hose at the top to carry heated air into the house....not quite sure how to rig that up. See, I've noticed that the outside of my dark green garage door will be hot to the touch even on a winter day, if it's sunny. But, the garage door is insulated and of course, the heat stays outside. This would have to be portable though, to roll away during non-winter, and in the rain...which since I lve in the Pacific Northwest, would be more often than not.

Question by chotii    |  last reply


Solar Cell/Panel Wiring?

Here I have 2 questions inside a question. 1. How to connect 2 or more solar cells/panels; series, parallel or some other, third way so....for example if I have 3 solar cells that give 5 Volts each, I connect them in some way and in the end have 15 Volt coming out... My question is hot to connect the solar panels to the the output described??? 2. Now that I have, for example 15 Volts coming out from these 3 small panels, I need to store that electric energy somewhere...So would a diode just to ,point, the electricity and a ultra capacitor to store it ,or does it have to be a circuit that involves rechargeable batteries and a special recharger circuit.

Question by comodore    |  last reply


Peltier thermoelectric heat pump, can it be used as Solar Generator?.

Can a 40 mm square Peltier thermoelectric heat pump be used as a solar generator It operates on 13 Vdc @ 5 Amps. Operating at 13 Vdc, we measured the hot side at 190 Deg. F and the cold side at 55 Deg F. I have a 6 foot reflector dish and can add Reok led tracker. How many watts will it generate if it does?. Thanks for your help

Question by talei1    |  last reply


Solar heating and perceived temperature

We've had an interesting discussion spanning several months on the efficacy of this instructable's approach to heating: https://www.instructables.com/id/Foil-Solar-Panels-for-Windows-VERY-Easy/ The conversation has gone long and isn't really that appropriate for the comments there so I've moved it here. Summary: The approach described in the instructable is to create a thin metal panel that hangs inside of one's window, which is heated by the sun's radiant energy. Convection then carries the hot air next to the panel up and circulates it within the room. The question is whether this approach provides a warmer perceived environment than simply letting the light into the room. As I see it, the question has two components. First, which one nets more heat energy inside the room? For an average room, the light will be scattered many times before a tiny fraction reflects back out the window. A flat foil panel as described in the instructable would have to be extremely absorptive to match this level of energy capture, because it gets only one bounce for its capture and also must capture the heat in an extremely small thermal mass. For this part of the question, not having a panel seems the likely win. The second part of the the question is more complicated. What is the perceived temperature in the room, given differences between convection heating of the air versus radiative heating of objects and surfaces in the room? On this count I'm unsure, but it seems that radiative heat contributes more to human comfort (see this Wikipedia article: http://en.wikipedia.org/wiki/Mean_radiant_temperature). If that's true, the panels lose again. Discuss!

Topic by nagutron    |  last reply


Solar Powered Drip Irrigation

Hi. I am in the process of designing and building a balcony garden with drip irrigation for multiple 3' x 1' planter boxes. The idea is to automatically water with a reservoir pump attached to drip line. There is no water or electrical outlet, so it has to be off grid. This being my first solar project, advice and assurance would be much appreciated. The pump would be turned on for about 1 hour every other day or so, this being hot Miami.  Diapragm Pump (12 Volts, 3 Amp draw): should generate enough PSI for the drip line http://www.ebay.com/itm/100PSI-DC12V-4L-Min-Solid-Electric-Diaphragm-Water-Pump-Self-Priming-for-RV-Boat-/281366070408? UPG UB1250 Sealed Lead Acid Battery (12 Volts, 5 Amps): http://www.amazon.com/UB1250-Sealed-Lead-Acid-Batteries/dp/B001DL9IBC/ref=zg_bs_389574011_9 ALEKO® Solar Panel (5 Watt, 17.5 Volt VMP): http://www.amazon.com/ALEKO%C2%AE-5W-5-Watt-Monocrystalline-Solar/dp/B0046HE62G/ref=sr_1_7?s=lawn-garden&ie;=UTF8&qid;=1450573836&sr;=1-7&keywords;=5+watts Docooler Solar Charge Controller (20 Amps, 12 Volts): http://www.amazon.com/Docooler-Controller-Battery-Regulator-Protection/dp/B00L37KZI6/ref=sr_1_3?ie=UTF8&qid;=1450580867&sr;=8-3&keywords;=charge+controller Main concerns: Will the battery and other electronics be able to function through the 100+ degree days of Miami? Does the system have a good power supply? Is the equipment good quality to last 3+ years? Thanks for all the input and insight!

Topic by bzand  


Do you know a cheap instructable for solar cells? Tips/ideas

Do you know where I can find a cheap how to for solar cells? The ones I've found cost around $200 and more but I cant be spending money on materials for a how to that might not even work. For materials around the house I have aluminum cans, copper wire, hot glue....you get the idea. If you have tips where to go to find an how to that I can afford, or tips on how to make a solar cell out of aluminum, please let me know.

Topic by SarahC306    |  last reply


Room heat transfer?

Greetings all, I live in a solar powered house which is heated by a single log burning stove which is situated in the main living area. Is it possible for me to transfer heat to the colder rooms by simply putting ducting between the top sections of the adjoining walls (seeing that hot air travels to cold areas - in theory!) or will I have to use a fan? I am trying to use as little power as possible or ideally non at all. Has anyone got any experience of this or know of any suitable solutions? Many thanks in advance.

Question by peachvw    |  last reply


Where can I find a/an (ideally black) watertight fabric that could be used for a solar water heater?

I'm in sunny New Orleans, and we are encountering a ridiculously cold snap.  I don't keep my house too warm, so I'm dying with electric heater cost.  Since I know my windows are one place where a lot of solar might be collected, and energy is lost, I am trying to find a way to collect passive solar energy. The idea is to sew several tubes into watertight fabric in a design like a radiator, and then fill them full of water.  The idea is that this will absorb the heat from the sun and then, as night falls, act as insulation against the cold.  And I am hoping that I could hang them in the windows of my house and remove them when it warms up. Does anyone have a suggestion for watertight fabric that I could use for such a project? Thanks D. Adrian

Question by Bannanaman    |  last reply


How to build an ammonia based solar chiller?

It's getting hot. I'd like to know how to convert that heat into cold. I've read about ammonia based chiller units that work better as it gets hotter outside.Adam Gosser at TED Talks demonstrates one.Anyone here built one? Care to share what you learned?

Question by pleabargain    |  last reply


Wanted: solar powered car air fan

You know how they have those solar powered air fans you hang in your car window so the car won't get too hot in the summer? Well I spent $35 and bought one, and it's a piece of junk. The fan won't even turn. I'm not sure if the motor is too weak or the solar panel is too weak. Panel is quite small, like 1 inch by 5 inches. So I'm looking for a cheap one to build myself, perhaps using the case from the old one. The problem is, how much surface area in solar panels do I use? Maybe I'll just hook the old one to another car battery, then hook a solar trickle charger to the battery to recharge it. Hmmmm... Anyone want to try and post an instructable for this idea?

Topic by chuckr44    |  last reply


How long will the fan run for on this solar power bank? plus running 12v fan off 12v solar panel?

Okay I've got 2 things here but a little intro first: I'm going on holiday and sometimes there's no power and it's really hot. So I want to make an eco-friendly cooling solution. Amazon/ebay have these Solar power banks that seem to have good reviews. If it is 5000mAh, how long will a USB fan run for? I did do some calculations (but I lost them) and I got about an hour or so.      Secondly, I found this solar power trickle charger, and I was wondering can use to directly run a 12v fan like this one? Will be work as long as the solar panel is in the sun? I can't see any current requirements for the fan, so it will it end up running really slow? Any help with this is appreciated! Thanks!

Question by hanashoib    |  last reply


How to build a Gazebo solar heater ?

Ok this is my first post Was looking for heater for DIY wooden gazebo to take the chill off but don't want chiminea fire, smoke I'm just starting up on solar set-up so looking for low power heater was thinking at first car 12v cigarette socket heater witch is an option But what i would really like to do is make something unusual So hear goes thinking about small oil radiator with element replaced for 12v 120w travel kettle element Now the closest thing I can think of to this is a towel rail but that's 240v I'm trying to keep it simple system 12v lights heater music USB gadget charger something like image attached I do hope 1 person out there thinks this is a good idea Questions 1. would it work 2. would it get hot or just warm 3. how long would it take to heat up again if at all giving image as example size and style  Description Specification 5 Fin oil-filled radiator heater with single heat setting Ideal for heating small offices or in the home. Voltage: 220-240V Wattage: 500W Frequency: 50Hz Plug Amp: 13A Low Wattage & Cost Effective Power heat 0.5kW Built-in Carry Handle Weight: 3KG

Question by brem69    |  last reply


How might I heat a basement space with solar heated water running through radiant underfloor tubing?

I live in the northeast and have a basement meant to be used by the kids as a hang out and studio space. It's cold. I'd like to heat it cheaply and environmentally. My preference is to use radiant floor heating with hot water supplied by a solar water heating system. I need to build both. I've seen great ideas for heating the ground and upper floors but I'm snagged on how to adapt any of them to a basement space. Oh, and I have practically no budget at all - tubing to be purchased but most everything else scrounged/salvaged/adapted. Any helpful suggestions?

Question by vexx2    |  last reply