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Search: Posts Made By: GaryGary
Forum: Solar Heating 01-09-20, 12:12 PM
Replies: 11
Views: 1,437
Posted By GaryGary
Hi, Here is an interesting solar air to...

Hi,

Here is an interesting solar air to water heater that goes a long ways back, but is very simple.
https://www.builditsolar.com/Projects/WaterHeating/SolarAirWaterHeater.pdf

The air to water...
Forum: Solar Heating 03-11-15, 04:48 PM
Replies: 5
Views: 1,550
Posted By GaryGary
Hi, Norm put a lot of thought and work into his...

Hi,
Norm put a lot of thought and work into his scheme for supporting and separating the copper hx coils in his tank:
Solar Hot Water and Space Heating System With Integrated Boiler...
Forum: Solar Heating 03-11-15, 11:07 AM
Replies: 13
Views: 9,205
Posted By GaryGary
A little more. This email response from Mike at...

A little more.
This email response from Mike at IBC North America (http://www.ibcna.com/)

"150 F is the max
people put up to 180, but we don't recommend it."

The question to him was: What is...
Forum: Solar Heating 03-11-15, 10:58 AM
Replies: 13
Views: 9,205
Posted By GaryGary
Hi, I did a little more searching around on the...

Hi,
I did a little more searching around on the IBC totes.

Talked to Hoover in Nebraska. Asked about using IBC totes for solar heated water storage.
He said that the lighter wall thickness...
Forum: Solar Heating 03-10-15, 02:06 PM
Replies: 13
Views: 9,205
Posted By GaryGary
Hi, I asked one of the makers of rotomolded...

Hi,
I asked one of the makers of rotomolded polyethylene tanks what temperatures the tanks could withstand -- the answer was:

"Our tanks are rated to spike at 140 and run a constant temp of 120....
Forum: Conservation 02-02-13, 08:42 PM
Replies: 100
Views: 74,340
Posted By GaryGary
Hi, I finished up the first cut at one version...

Hi,
I finished up the first cut at one version of a heat exchanger to recover heat from the dryer exhaust, and did some testing on it.

The heat exchanger is made from some used twinwall...
Forum: Solar Power 01-29-13, 09:21 PM
Replies: 35
Views: 9,557
Posted By GaryGary
Hi, I have a 2.2 KW Enphase inverter system --...

Hi,
I have a 2.2 KW Enphase inverter system -- going on 3 years old.

Have not had any problems or failures.

At the time I did mine, the microinverters cost about the same as a single string...
Forum: Conservation 12-17-12, 03:17 PM
Replies: 100
Views: 74,340
Posted By GaryGary
Hi, Here are the pictures of the "throwaway"...

Hi,

Here are the pictures of the "throwaway" prototype of the dryer heat exchanger

Untitled 1 (http://www.builditsolar.com/Experimental/DryerHX/DryerHXProto.htm)

Any suggestions would be...
Forum: Conservation 12-10-12, 10:02 AM
Replies: 100
Views: 74,340
Posted By GaryGary
Hi, I took some measurements on our dryer doing...

Hi,
I took some measurements on our dryer doing a fairly small load:

Maytag Neptune, 2002, electric.

Wet load weight 7.9 lbs, Dry weight 4.2 lbs, Water weight 3.7 lbs

Outlet duct 4 inch...
Forum: Solar Heating 09-28-12, 12:19 PM
Replies: 43
Views: 9,090
Posted By GaryGary
Hi, Just some thoughts on sizing the pump and...

Hi,
Just some thoughts on sizing the pump and supply and return line for this 200 sf collector.

Heliodyne recommends a flow rate between 0.025 gpm/sf of collector to 0.075 gpm/sf of collector. ...
Forum: Renovations & New Construction 02-06-12, 07:34 PM
Replies: 49
Views: 11,700
Posted By GaryGary
Hi, The graph I saw showed a peak insulation...

Hi,
The graph I saw showed a peak insulation value at about 3/4 inch gap, but the drop off for narrower and larger gaps was quite gradual all the way out 3 inches. I'll see if I can find it again....
Forum: Solar Heating 01-09-12, 07:51 PM
Replies: 2
Views: 3,699
Posted By GaryGary
Hi, My experience is with drain back systems,...

Hi,
My experience is with drain back systems, but this probably also applies to closed loops.

A lot of people seem to end up around 15F for the turn on differential because if they go below this,...
Forum: Solar Heating 10-04-11, 11:58 AM
Replies: 214
Views: 102,619
Posted By GaryGary
Hi Tim, Sometime back up this thread we talked...

Hi Tim,
Sometime back up this thread we talked about the possibility of blocking some or all of the attic ventilation in order to make it a more efficient heat collector. This would probably...
Forum: Solar Heating 07-14-11, 04:27 PM
Replies: 214
Views: 102,619
Posted By GaryGary
Hi, Don't know if you caught this system by...

Hi,
Don't know if you caught this system by Randy:
An Invisible Solar Attic Space Heating Collector (http://www.builditsolar.com/Projects/SpaceHeating/AtticRafter/AtticRafter.htm)

He has...
Forum: Solar Heating 11-03-10, 08:53 PM
Replies: 214
Views: 102,619
Posted By GaryGary
Hi, This one requires a "small" modification to...

Hi,
This one requires a "small" modification to your attic roof, but it appears to work well:

IWillTry.org Build a Solar Attic (http://www.iwilltry.org/b/projects/solar-attic/)


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