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Re: Looking for input?

Discussion Board - 1 hour 24 min ago
Great points, thanks! The thermosyphon seems like a better and simpler plan than the radiant in-floor heat. I'm sure glad I stopped by for some advice!

I'm pouring my footing next week and hope to start building after that.

Re: magnet piston engine

Discussion Board - 7 hours 7 min ago


improved bearing housing mounting plates. The wooden mounts were moving and the system was lo...

Re: cheapest way to heat with PV

Discussion Board - 12 hours 20 sec ago
Given how PV prices have fallen, and the fact that PV doesn't need some elements such as anti-freeze or drainback or stagnation protection, and that PV can continue to work when it's too cold for thermal, eg in UK winter, I no longer expect thermal to ...

Re: 8FT Windturbine Furling

Discussion Board - Wed, 09/17/2014 - 19:53
You probably have to see, or hear, a turbine run away to really appreciate this, but there is something to be said for the simplicity of furling.  I'm partial to this method as it doesn't rely on electronics to initiate something, or electrical loading...

Re: 15' footer upright and turning

Discussion Board - Wed, 09/17/2014 - 19:43
You were probly clear and I need to pay more attention.
Thanks for the update.
gww

Re: cheapest way to heat with PV

Discussion Board - Wed, 09/17/2014 - 19:13
I think you all are missing the obvious here. If you have lots a panels the cheapest way to heat water would be to put some thermal solar collector pipes under the panels and use the solar PV to pump the coolant to a heat exchanger in your water tank. ...

Re: 15' footer upright and turning

Discussion Board - Wed, 09/17/2014 - 18:25
gww,

None of the Rohn towers are AL.  They're steel; hot-dipped galvanized if I wasn't clear. Guys are EHS with preformed grips.

The gin poles are often aluminum to reduce the weight.  And, the removable steps that I showed on the previous page are mou...

Re: diffeerent size panels

Discussion Board - Wed, 09/17/2014 - 16:10
Good voltage drop calculator http://www.nooutage.com/vdrop.htm

Re: 15' footer upright and turning

Discussion Board - Wed, 09/17/2014 - 14:41
My tower are definatly not aluminum.  Very heavy.  I will do a search on rohn. 
Thank you
gww

Re: 15' footer upright and turning

Discussion Board - Wed, 09/17/2014 - 13:59
For any of the normal 25G & 45G towers we normally just use the smaller aluminum gin pole (Rohn type) and ropes, tag lines, with a snatch at the bottom...but lifting just by hand and moving the gin up each 10' section.  Three people is good.  We usuall...

Re: 15' footer upright and turning

Discussion Board - Wed, 09/17/2014 - 13:16
kitestring
How do you raise and lower your tower?  What is your footing?  I have 9 twenty foot sections of a simular tower. I could get more.  I want to start at about 80' to 100' high and see how it goes before I do another.

I currently have a 80' pol...

Re: 15' footer upright and turning

Discussion Board - Wed, 09/17/2014 - 10:44
I should probably mention that the tower section on the lower drawing is a bit out of scale.  I 'stretched' 25G section print that I had here.  The dimension across the flats of the 45G is 1'-6"; the pipe is 3.5" schedule 40.

MOVED: Solar thermal project

Discussion Board - Wed, 09/17/2014 - 10:38
This topic has been moved to Quarantine.
Sorry, but per our rules. You cannot post a link asking for donations.
http://www.fieldlines.com/index.php?topic=148388.0

Re: 15' footer upright and turning

Discussion Board - Wed, 09/17/2014 - 10:32
QuoteHow high are you going with the tower?
100'.  We just took down our long running daily-driver; a Sencenbaugh 12' turbine.  It was on a Rohn 25G.  Our plan is to take the 25G down and put up a beefier 45G on the same footprint, adding on...

Solar thermal project

Discussion Board - Wed, 09/17/2014 - 09:35
Hi,

Please take a moment to check my campaign on Indiegogo
http://www.igg.me/at/solar-thermal
Get perks, make a contribution or simply share with your friends by using Indiegogo share tools.
I'm looking for...

Re: magnet piston engine

Discussion Board - Wed, 09/17/2014 - 08:30
https://www.youtube.com/watch?v=9c1W6MkAjUU

Hi, I am just replacing the humans with electromagnets and a rigid double bob pendulum.

Re: cheapest way to heat with PV

Discussion Board - Wed, 09/17/2014 - 08:04
analog man;
We the GMs and Mods really would like NOT to interject in posts. However we do at times jump in to keep things calm.
Couple things you might remember when posting.
Try to stay on track of what the OP is asking for. Sure even the GMs and MOD...

Re: UNO Water Heater Controller (OperaHouse)

Discussion Board - Wed, 09/17/2014 - 07:48
It's not that it will NOT work , just not as you possibly envisioned.
OperHouse is x100 more knowledgeable on this and perhaps he will chime in with little tid bits.
There are other options since you are wanting to use passive heating.
Things like runn...

Re: UNO Water Heater Controller (OperaHouse)

Discussion Board - Wed, 09/17/2014 - 05:58
Heat loss calculator (using planned insulation values for walls and ceiling) shows 10K BTU per hour. Selected tank is a 19gal with a 120V 1500W element. On a normal install to grid, the calculator says 3 KWh is needed to provide the necessary BTUs to h...

Re: Dump/charge/ controller

Discussion Board - Wed, 09/17/2014 - 05:28
I don´t have any experince of that controller, my first impression is not to good, 5 sec conection time seems like forever to me...and everything i´we read about dump controller say relay is big no no, it´s not if, it´s when they fail and in my world a...
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