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Search: Posts Made By: ELGo
Forum: Geothermal & Heat Pumps 11-04-15, 03:50 PM
Replies: 15
Views: 4,296
Posted By ELGo
By no means an expert, I can share my conclusions...

By no means an expert, I can share my conclusions from reading a fair amount recently:

1. For cold climates, CO2 refrigerant. This has meant Japanese brands for the most part, but I think some...
Forum: Solar Power 10-12-15, 11:26 AM
Replies: 741
Views: 173,725
Posted By ELGo
I'm sure you know your tax situation well, but...

I'm sure you know your tax situation well, but being retired does not necessarily mean no tax liability. Even SS is taxed above a threshold amount.

I'm in your situation. No tax liability to take...
Forum: Solar Power 10-12-15, 10:58 AM
Replies: 741
Views: 173,725
Posted By ELGo
Hi, How did you figure your payback ? My...

Hi,

How did you figure your payback ? My arithmetic says faster but I may be off in my assumptions how much the panels are generating.

Addendum: Second thought -- it makes sense at 1.6...
Forum: Solar Power 10-12-15, 10:48 AM
Replies: 7
Views: 1,701
Posted By ELGo
Robaroni, I think you mean 'ante' and not...

Robaroni,

I think you mean 'ante' and not 'anti'

;-)
Forum: Solar Power 10-12-15, 10:45 AM
Replies: 741
Views: 173,725
Posted By ELGo
This is correct but people are often confused by...

This is correct but people are often confused by tax liability Vs tax owed.

The EV non-refundable tax credit applies to the first $7500 of tax liability. If your liability is less than $7500, the...
Forum: Geothermal & Heat Pumps 10-06-15, 05:54 PM
Replies: 21
Views: 5,101
Posted By ELGo
I've wondered more than a few times why drain...

I've wondered more than a few times why drain water heat recovery units are not built with a pump for installation in one story homes. Seems like activation could be either manual or by water weight....
Forum: Geothermal & Heat Pumps 10-06-15, 05:51 PM
Replies: 21
Views: 5,101
Posted By ELGo
I've wondered more than a few times why drain...

I've wondered more than a few times why drain water heat recovery units are not built with a pump for installation in one story homes. Seems like activation could be either manual or by water weight....
Forum: Geothermal & Heat Pumps 10-06-15, 03:31 PM
Replies: 21
Views: 5,101
Posted By ELGo
The efficiency of Air pumps are temperature...

The efficiency of Air pumps are temperature related, and in turn dependent on the refrigerant used -- particularly in cold climates.

I don't know anything about the Steibel, but people living in 4...
Forum: Renovations & New Construction 04-10-14, 08:47 PM
Replies: 10
Views: 3,847
Posted By ELGo
Matching a window to the local climate and use...

Matching a window to the local climate and use makes for a *much* happier and valuable purchase.

It sounds like OP will not have a lot of sunshine to capture through the winter, but lives in a...
Forum: Conservation 08-10-13, 05:02 AM
Replies: 35
Views: 34,419
Posted By ELGo
623 kWh sounds pretty modest for Alabama in the...

623 kWh sounds pretty modest for Alabama in the summer. I don't know how you do it, but my hat is off to you.
Forum: Lighting 08-10-13, 02:25 AM
Replies: 21
Views: 12,729
Posted By ELGo
Thanks for the tip, I'll look for it.

Thanks for the tip, I'll look for it.
Forum: Lighting 08-09-13, 08:23 AM
Replies: 21
Views: 12,729
Posted By ELGo
Where2 I'm not sure I would ever want that...

Where2

I'm not sure I would ever want that much light from one fixture, but I sure appreciate the retrofit. I'd like to see a schematic of the wiring; it will help me learn to be a...
Forum: Conservation 08-09-13, 05:55 AM
Replies: 35
Views: 34,419
Posted By ELGo
We do not have AC or a swamp cooler. Cooling...

We do not have AC or a swamp cooler.

Cooling is by night ventilation that is sometimes aided by a fan, and daytime shading. The large southern facing windows have external shades, while the east...
Forum: Solar Power 07-23-13, 05:10 PM
Replies: 741
Views: 173,725
Posted By ELGo
NIIICE! I'm amazed at your total...

NIIICE!

I'm amazed at your total (pre-subsidy) cost. Would you mind breaking down to:

Panels
Inverter
Other electricity stuff
Connector between the roof and the panel ?
Forum: Solar Heating 07-19-13, 12:35 AM
Replies: 70
Views: 33,070
Posted By ELGo
Interesting. Perhaps the outside sleeve could...

Interesting.
Perhaps the outside sleeve could be plastic, even if it is a poor heat exchanger ?
Forum: Appliances & Gadgets 07-17-13, 05:09 PM
Replies: 81
Views: 31,812
Posted By ELGo
You are right with large numbers to focus on the...

You are right with large numbers to focus on the exponents, but consider e.g. a rectangle that is elongated in height by 50%:

The surface area increases from
2xy + 2xh + 2yh to
2xy + 3xh + 3yh...
Forum: Appliances & Gadgets 07-17-13, 03:12 PM
Replies: 81
Views: 31,812
Posted By ELGo
Brilliant thread. I came to similar...

Brilliant thread.

I came to similar conclusions why freezarators work so well - it is not the horizontal vs vertical orientation so much as just not having a freezer! In a similar vein, smaller is...
Forum: Solar Heating 07-17-13, 02:52 PM
Replies: 70
Views: 33,070
Posted By ELGo
AC, Sounds like you think I built that...

AC,

Sounds like you think I built that device -- I wish!
Just a nifty idea I found on the web.

The commercial heat recovery (HR) units that do measure recovery report 50-60% -- that was the...
Forum: Solar Heating 07-16-13, 08:46 AM
Replies: 70
Views: 33,070
Posted By ELGo
More than one problem may be in play. I read that...

More than one problem may be in play. I read that imprudent cost cutting in building the module was the problem, not the solar cells per se. So the electric connections end up having premature...
Forum: Solar Heating 07-16-13, 01:26 AM
Replies: 70
Views: 33,070
Posted By ELGo
One last comment about PV adventures ... I...

One last comment about PV adventures ...

I was much more gung ho about PV until I started reading about very premature PV panel death from the cheap Chinese manufacturers. I expect this to be a...
Forum: Solar Heating 07-15-13, 11:37 PM
Replies: 70
Views: 33,070
Posted By ELGo
@#25 I was curious about the $ arithmetic...

@#25

I was curious about the $ arithmetic ...

A gallon of heating oil has about 41 kWh. Assuming about a 60% burn efficiency for the boiler (is that about right ?),a gallon will supply 24.6 kWh...
Forum: Solar Heating 07-15-13, 12:48 PM
Replies: 70
Views: 33,070
Posted By ELGo
Thanks for the thread, Xringer. I do enjoy a...

Thanks for the thread, Xringer.
I do enjoy a novel idea :)

I calculated some time ago that my shower consumes about 20 kW while running, so ~ 1.2 kWh of DC PV a day is good for about 3.6 minutes...
Forum: Conservation 05-09-13, 08:02 AM
Replies: 24
Views: 13,312
Posted By ELGo
In general true, but the grandma cat of the house...

In general true, but the grandma cat of the house begs to differ. The proof is in the piddling -- or lack thereof.
Forum: Appliances & Gadgets 04-26-13, 04:54 PM
Replies: 28
Views: 10,939
Posted By ELGo
I cannot help but point out that your units...

I cannot help but point out that your units should be Wh/day, not watts ;)
Forum: Geothermal & Heat Pumps 04-26-13, 11:15 AM
Replies: 45
Views: 13,073
Posted By ELGo
Here is my last attempt to explain why I think...

Here is my last attempt to explain why I think you will waste energy and money:

1. Cheap energy to cool the water -- good
2. (Albeit Cheap) energy to cool the *entire* thermal mass of the house...
Showing results 1 to 25 of 66

 
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