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Search: Posts Made By: charlesfl
Forum: Renovations & New Construction 01-26-16, 02:20 PM
Replies: 35
Views: 4,821
Posted By charlesfl
Have you looked at the Grundfos SQ series soft...

Have you looked at the Grundfos SQ series soft start constant pressure
water well pump?

charlesfl
Forum: Geothermal & Heat Pumps 10-16-15, 09:47 AM
Replies: 1
Views: 794
Posted By charlesfl
Piping Design

I found a information guide by McQuay on Refrigeration Piping Design Guide for their technicians. It is a pdf file.

http://inspectapedia.com/aircond/AC_Guide_McQuay.pdf

Hope this helps,...
Forum: Geothermal & Heat Pumps 02-10-15, 08:07 AM
Replies: 7
Views: 1,897
Posted By charlesfl
Evaporator length

mejunkhound, how did you size your length of the evaporator per ton?

Thanks, charlesfl
Forum: Geothermal & Heat Pumps 09-19-14, 07:21 AM
Replies: 45
Views: 38,473
Posted By charlesfl
Excellent, exactly what I was looking for. ...

Excellent, exactly what I was looking for. Thanks so much, Charlesfl
Forum: Geothermal & Heat Pumps 09-18-14, 02:18 PM
Replies: 45
Views: 38,473
Posted By charlesfl
I understand that less temperature differential...

I understand that less temperature differential means less work.
Less work means less electricity used. How is the electricity used less, less amperage use by the compressor or run for a shorter...
Forum: Geothermal & Heat Pumps 09-18-14, 07:34 AM
Replies: 45
Views: 38,473
Posted By charlesfl
Dumb question. Given the Carnot cycle limits...

Dumb question.

Given the Carnot cycle limits how is the efficiency achieved with lower temperature difference for gshp?

Is it by lower compressor amperage used, shorter run times or something...
Forum: Geothermal & Heat Pumps 09-16-13, 10:26 AM
Replies: 55
Views: 19,672
Posted By charlesfl
I found an article by Tom Murphy of his series...

I found an article by Tom Murphy of his series "Do the Math" entitled "100 MPG on Gasoline; Could We Really?"

http://physics.ucsd.edu/do-the-math/2011/07/100-mpg-on-gasoline/

I know that when a...
Forum: Appliances & Gadgets 09-04-13, 01:31 PM
Replies: 2
Views: 1,359
Posted By charlesfl
Durotherm - Energy Efficient Cookware - Products...

Durotherm - Energy Efficient Cookware - Products - KUHN RIKON SWITZERLAND (http://us.kuhnrikon.com/us/en/products/energy-efficient-cookware/durotherm.html)

They make double wall cooking utensils, ...
Forum: Geothermal & Heat Pumps 08-12-13, 07:46 AM
Replies: 28
Views: 9,549
Posted By charlesfl
You might want to look at Friedrich. It is an...

You might want to look at Friedrich. It is an American name and might have better support for parts and repairs. A lot of the Chinese units are rebranded china units, maybe manufactured by ...
Forum: Appliances & Gadgets 05-04-13, 09:47 AM
Replies: 4
Views: 2,384
Posted By charlesfl
stainless-steel interface disk

I was wondering is an induction disk would work with an induction cooktop and then found one for sale at this website.

stainless-steel interface disk

Cook In Your Dorm Room with a Portable...
Forum: Tools 01-14-13, 12:29 PM
Replies: 8
Views: 2,544
Posted By charlesfl
Copeland scroll variable speed technology

I see where Copeland is now making an inverter compressor.

Copeland Scroll Variable Speed Technology...
Forum: Conservation 01-08-13, 10:01 AM
Replies: 22
Views: 6,346
Posted By charlesfl
Fiberglass insulation is very easy to split. it...

Fiberglass insulation is very easy to split. it usually comes off in layers. Just seal the cavity as Ryland suggested, insert the insulation, peal off what you don't need and you should be good.
Forum: Geothermal & Heat Pumps 01-07-13, 01:15 PM
Replies: 64
Views: 9,803
Posted By charlesfl
If you are willing to study for the epa license...

If you are willing to study for the epa license you can get one just by taking the test.

EPA 608 Certification (http://www.epatest.com/608/)
Forum: Renovations & New Construction 01-05-13, 09:20 AM
Replies: 12
Views: 3,091
Posted By charlesfl
Autoclaved aerated concrete block (AAC) ...

Autoclaved aerated concrete block (AAC)

R-value (US) = RSI 5.678263337 and RSI (SI) = R-value 0.1761101838 and R = 1/U

0.25 W/mK = R value US of 5.678 X 1/0.25 = 5.678 X 4 = 22.7 R...
Forum: Conservation 12-15-12, 10:23 AM
Replies: 100
Views: 68,638
Posted By charlesfl
Has anyone considered removing most of the water...

Has anyone considered removing most of the water with a high speed spin dryer?

Found a small one at:

Spin Dryer (http://www.laundry-alternative.com/products/Spin_Dryer.html)
Forum: Geothermal & Heat Pumps 12-03-12, 02:51 PM
Replies: 1,940
Views: 1,384,191
Posted By charlesfl
I found a masters thesis on Coaxial Borehole Heat...

I found a masters thesis on Coaxial Borehole Heat Exchanger which comes up with interesting conclusions about earth coupled heat exchangers comparing the two pipe system we use. It is very detailed...
Forum: Geothermal & Heat Pumps 11-02-12, 11:24 AM
Replies: 16
Views: 3,324
Posted By charlesfl
Drakes Landing, how can I find the active display...

Drakes Landing, how can I find the active display real time monitoring?

Do they use insulation around the heat storage?

Thanks, charlesfl
Forum: Geothermal & Heat Pumps 10-26-12, 08:03 AM
Replies: 77
Views: 25,774
Posted By charlesfl
Heat Capacity: Water Furnace assumes that in...

Heat Capacity: Water Furnace assumes that in addition to the heat extracted from the source water loop, the electrical energy consumed by the heat pump is also converted into heat and fed into the...
Forum: Geothermal & Heat Pumps 09-21-12, 02:09 PM
Replies: 1,940
Views: 1,384,191
Posted By charlesfl
Free heat ...

Free heat
http://www.mcquay.com/mcquaybiz/literature/lit_systems/AppGuide/AG_31-011_120407.pdf

This is a site that deals with piping
Forum: Tools 09-05-12, 07:38 AM
Replies: 0
Views: 2,372
Posted By charlesfl
Free program to calculate heat loss

I found a free computer program that can be run in windows by Lawrence Berkley National Lab called THERM.
It can be use to find heat loss of house through different materials. Can be downloaded from...
Forum: Geothermal & Heat Pumps 09-04-12, 11:44 AM
Replies: 1,940
Views: 1,384,191
Posted By charlesfl
Smile I found a free computer program that can be run...

I found a free computer program that can be run in windows by Lawrence Berkley National Lab called THERM.
It can be use to find heat loss of house through different materials. Can be downloaded...
Forum: Geothermal & Heat Pumps 07-14-12, 10:09 AM
Replies: 1,940
Views: 1,384,191
Posted By charlesfl
I found a company that does various types of...

I found a company that does various types of drilling that I thought might be of interest.
They have developed a slightly different method of drilling for geothermal heat pump that could be used by...
Forum: Geothermal & Heat Pumps 06-28-12, 07:05 AM
Replies: 49
Views: 12,581
Posted By charlesfl
I was thinking that the reason heat pump water...

I was thinking that the reason heat pump water heaters are not more popular is that the heat pump is too small compared to an electric water heater and takes too long to heat the water.

Am I...
Forum: Geothermal & Heat Pumps 05-03-12, 08:40 AM
Replies: 49
Views: 12,581
Posted By charlesfl
I priced r22 the other day. The price has...

I priced r22 the other day. The price has doubled recently to $421 per 30 pound tank at the local hvac wholesale distributor.

Charlesfl
Forum: Geothermal & Heat Pumps 04-29-12, 10:20 AM
Replies: 1,940
Views: 1,384,191
Posted By charlesfl
correction Question for AC Hacker or anyone...

correction Question for AC Hacker or anyone interested in refrigerants.

Is R22a suitable for use in a home heat pump? The reason I am asking is my understanding is that it is made from propane...
Showing results 1 to 25 of 38

 
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