I have a good experience with http://www.blueridgecompany.com/ and they can ship with USPS.
For any reason if one of your two batteries in series fails you lose the backup.
If one of the two 12 volt batteries connected in parallel fails...
Volumetric Heat Capacity
Iron : 3.53
Water is simply the best for storing heat !...
At 10 gpm the head loss for 1" diameter is only .1 psi !
Suggestion, reverse your pump to push water in flat plates.
And inlet side requires a minimum pressure....
I use a similar one for several years and it work well.
Very good point !
Under 100$, and maybe other choice are available.
Good desing Dave, not too much complicated.
Maybe add a low water cut-off in expansion tank for alert and control level.
And which model Tekmar...
«I think you may be using those weird "Imperial Gallons" Julien»
No no no..., imperial gallon weigh 10 pound, not 8.35 !
And for your info...
Specific heat capacity of steel is 9.42 X lower then water by weight, 4,000 pounds of steel are equivalent of 424 pounds of water. 1,900 gallons @...
It is beautiful when is brand new ! :)
You are sure that the expansion tank are not inverted ?
I presume 6 X 50' are sufficent to make a job, and you can use thin refrigeration tubing. Sure surface in hx tranfer is smaller because the water...
19 gpm in a 1.25" pipe pressure drop is 1.54 psi/100ft
18gpm in six...
Current price liste (august 2009) jumps up significantly...
Solo Plus 40 -- 8,590$ , +24%
Solo Plus 30 -- 7,980$ , +26%
Excel 2000 -- 11,500$...
US importer have english version.
«coils vs. plate» ?
No risk of cavitation with plate on side storage ?
For coil we have no chart to calculate heat transfer...
Hi Andrew, i am suppose the first is a 1" inlet and low cost made, the second is a 1 1/4" and is «Rated at 450 psi working pressure, both sides. U.L....
Several info on this Landomat link.
Tarm and Froling are UL and CSA approved.
Orlan Eko from New Horizon corp have a label UL and CSA
Cosy Heat said Bio-Mass are UL and CSA...
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