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aug 2013

How to make a solar water heater

Batch solar water heater
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Read PDF guide for making batch solar water heater

Passive solar heater using old water heater

Many ways to do this.

One example: a bare tank is placed in plywood box that faces sun > buy old 40 gallon electric tank from plumber and remove outer shell > remove sediment, flush tank with two pints diluted hydrogen peroxide, replace anode rod Read how > tank and plywood are painted black to absorb heat; piece of clear glass is placed over box; box is insulated >> put drain hole in bottom of box to release condensation > 40 gallon tank + water + plywood weighs 460 lbs >> put expansion tank on incoming cold water line > > temps are too high for plastic pipe > electrically ground tank and copper pipes using #6 copper wire > insulate pipes > design project so cleaning and maintenance are easy.

End of sunny day, you have 40 gallons hot water > or more if you put 2-40's in series >>> hot water cools quickly but lasts until early evening > put insulation over glass when sun goes down > 115V element put on switch can keep water warmer longer and prevent freezing in winter > shower uses 5-9 gallons of hot water > bath uses 12-15 gallons hot > once you start using hot water, cold water enters tank so take all baths-showers in succession > for morning hot water, put 115V 2.5 gallon or 6 gallon under sink > connect under-sink heater to light switch or timer > reducing consumption and planning are key.

expansion tank

Expansion tank

High heat solar require expansion tank on incoming cold water line

Things to avoid with batch heater
How to install under-sink electric water heater

Expansion tanks at Amazon
Expansion Tank Installation pdf
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2 gallons water in the sun

Set 2 gallons water in the sun inside glass-covered box, and have hot water at dinnertime.
Jose Alano solar collector
Solar collector made from plastic bottles

Do it yourself  ideas at Build-it-solar

Long list of do-it-yourself solar projects

wrap water heater     dripping faucet

Simple ways to save money with tank heater

There are many ways to save with a water heater without buying expensive heater.
Reducing consumption is best way. Maintain water heater is another.
Read 9-ways to save with water heater
How to maintain water heater
How to install under-sink electric water heater
Solar water heater

Should you buy commercial solar water heater system?


See reasons why you should not buy expensive solar installation

Solar heat is common across globe

Solar heaters in Middle East use collection panels
Buildings in background have solar electric panels on roof
Maybe somebody should clean those solar collectors

Additional links

Electricity from pole to breaker box

Off-peak water heater

Clean sediment from tank

Water heater timers
Do it yourself
Do it yourself water heater

Anode rods

Basic water heater circuits
Solar water heater
9+ ways to save with water heater

How to twist wire
Gas and electric water heaters Support the economy:
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40 gallon electric water heaters at Amazon
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How to install gas water heater
Troubleshoot gas water heater
Troubleshoot electric water heater
Gas and electric water heaters Industrial electric at Amazon

Industrial supplies at Amazon

Industrial and scientific Amazon
Intermatic control centers Intermatic control centers:
+ manuals and parts

Including Z-wave
box timers Compare box timers

Control with Z-wave
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Control water heater with programmable wall timer
Countdown timers Compare countdown timers

Control water heater with countdown timer
Compare power packs
Yard and Christmas timers Yard and Christmas timers
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And say hello to your family, from me

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