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Search: Posts Made By: AC_Hacker
Forum: Renovations & New Construction 11-20-16, 08:07 PM
Replies: 588
Views: 514,618
Posted By AC_Hacker
This is a really big problem. A HUGE amount...

This is a really big problem.

A HUGE amount of posts and information have been volunteered on EcoRenovator, and they should all be accessible. But they are not. Some people post their images here...
Forum: Renovations & New Construction 10-05-16, 12:31 AM
Replies: 588
Views: 514,618
Posted By AC_Hacker
If I may join in... PEX is High Density...

If I may join in...

PEX is High Density PolyEthylene (which is heat weldable) that has been subjected to a process that causes some of the molecule chains to cross-link. The 'PE' is Polyethylene...
Forum: Renovations & New Construction 02-26-15, 09:22 AM
Replies: 588
Views: 514,618
Posted By AC_Hacker
OK Drake, I think I have found the answer to...

OK Drake, I think I have found the answer to coping with the thermal lag of your heating slab...
...
Forum: Renovations & New Construction 02-24-15, 10:47 AM
Replies: 588
Views: 514,618
Posted By AC_Hacker
If you are concerned with fluctuations in your...

If you are concerned with fluctuations in your house, and you seem to be, and you think that you will experience these fluctuation with a large radiant slab, maybe you should change directions and go...
Forum: Renovations & New Construction 02-23-15, 11:24 PM
Replies: 588
Views: 514,618
Posted By AC_Hacker
There's a very different way to look at this... ...

There's a very different way to look at this...

If you make the radiant surface as efficient as possible (closer tubes, larger diameter, turbulent flow, increased volumetric flow, better thermal...
Forum: Renovations & New Construction 02-23-15, 02:22 PM
Replies: 588
Views: 514,618
Posted By AC_Hacker
Yeah. John Siegenthaler is the go-to guy for...

Yeah. John Siegenthaler is the go-to guy for radiant in North America.

I actually sat in on a free webinar by him on the subject of Renewable Hydronic Heating. It was pretty good... but somewhat...
Forum: Renovations & New Construction 02-23-15, 01:43 PM
Replies: 588
Views: 514,618
Posted By AC_Hacker
Most people think that when they do a Google...

Most people think that when they do a Google search, they are by default searching over all available on-line information in the world. It is not obvious that Google localized information.

So if...
Forum: Renovations & New Construction 02-22-15, 11:02 AM
Replies: 588
Views: 514,618
Posted By AC_Hacker
I think I did address that when I indicated that...

I think I did address that when I indicated that extra pumping would be required, and I indicated that the increased volume could be achieved with less power (linear increase rather than quadratic...
Forum: Renovations & New Construction 02-20-15, 12:33 PM
Replies: 588
Views: 514,618
Posted By AC_Hacker
Drake, Thank you for taking the time to...

Drake,

Thank you for taking the time to compose a detailed answer.

There are some Acronyms that you are using that I don't understand. I even tried to Google them, with no luck. What do you...
Forum: Renovations & New Construction 02-19-15, 09:04 PM
Replies: 588
Views: 514,618
Posted By AC_Hacker
What Exactly Did You Find Lacking?

I'd have to say that my experience with RadiantWorks was quite unlike your experience.

If a curious mind is looking for something to draw your PEX layout for them, then RadiantWorks would be...
Forum: Renovations & New Construction 02-19-15, 03:56 PM
Replies: 588
Views: 514,618
Posted By AC_Hacker
Drake, You are asking important and complex...

Drake,

You are asking important and complex questions regarding maximization of efficiency, that involve multiple variables.

I don't believe that anyone on this forum, including people who have...
Forum: Renovations & New Construction 02-10-15, 07:39 PM
Replies: 588
Views: 514,618
Posted By AC_Hacker
Yeah, I think that PEX that crosses itself is a...

Yeah, I think that PEX that crosses itself is a sign that the layout was poorly planned.

-AC
Forum: Renovations & New Construction 02-10-15, 07:10 AM
Replies: 588
Views: 514,618
Posted By AC_Hacker
If you track back in this glorious thread, you'll...

If you track back in this glorious thread, you'll find some lovely illustrations of temperature gradients from a thermal computer model of various hydronic slab layout schemes.

You'd learn a lot...
Forum: Renovations & New Construction 09-09-14, 07:43 PM
Replies: 588
Views: 514,618
Posted By AC_Hacker
If you think you will want to 'go geo', be sure...

If you think you will want to 'go geo', be sure you design your floors for geo now... it'll make your conventional heating cheaper too, in the meantime..

-AC
Forum: Renovations & New Construction 04-01-14, 12:48 PM
Replies: 588
Views: 514,618
Posted By AC_Hacker
I found THIS...

I found THIS...
Forum: Renovations & New Construction 03-31-14, 11:56 AM
Replies: 588
Views: 514,618
Posted By AC_Hacker
Yes. I think that the idea is to get better...

Yes. I think that the idea is to get better conduction, ant the more perlite that is added, the worse the conduction.

I'm seeing perlite touted as a thermal insulator.

Shouldn't I be going the...
Forum: Renovations & New Construction 03-31-14, 11:33 AM
Replies: 588
Views: 514,618
Posted By AC_Hacker
Correct me if I'm wrong here... Density of...

Correct me if I'm wrong here...

Density of gypcrete is 110 lb/cu ft

Density of concrete is 150 lb/cu ft

Density difference = 150 - 110 = 40 lb/cu ft

percent difference = (40/150) * 100 =...
Forum: Renovations & New Construction 03-31-14, 12:31 AM
Replies: 588
Views: 514,618
Posted By AC_Hacker
I am preparing the room for the floor. I've put...

I am preparing the room for the floor. I've put in he electrics, now I'm insulating with some kind of board to go up on the walls. Right now I'm on a tight budget, and it's my policy to not borrow...
Forum: Renovations & New Construction 02-27-14, 04:56 PM
Replies: 588
Views: 514,618
Posted By AC_Hacker
Vlad's House...

I'd have to add to what Vlad has said, by noting that his whole house is new-built with 6" studs, 24" spaced walls, insulated with mineral wool, double glazed windows.

And also Vlad is a total...
Forum: Renovations & New Construction 12-18-13, 04:35 PM
Replies: 588
Views: 514,618
Posted By AC_Hacker
Something new in radiant heating & cooling...

I just stumbled across this item:

http://upload.wikimedia.org/wikipedia/commons/thumb/c/cd/Kapillarrohrmatte.jpg/800px-Kapillarrohrmatte.jpg

It's called a capillary tube mat...
Forum: Renovations & New Construction 12-17-13, 10:04 PM
Replies: 588
Views: 514,618
Posted By AC_Hacker
Oregon is still here, and it is still green and...

Oregon is still here, and it is still green and wierd.

I live in the St John's area. You don't see many of the "Wierd" bumper stickers in this part of town... it would be redundant.

-AC
Forum: Renovations & New Construction 12-17-13, 07:18 PM
Replies: 588
Views: 514,618
Posted By AC_Hacker
When I held the IR-thermometer out to the side, I...

When I held the IR-thermometer out to the side, I made sure that it was also perpendicular to the surface.

If anything, that measurement was too high, because the heat from my arm was "visible" to...
Forum: Renovations & New Construction 12-16-13, 01:48 PM
Replies: 588
Views: 514,618
Posted By AC_Hacker
We should ask more of ourselves...

OK, this is swell.

But the Internet is awash with forums, and blogs, and commercial builders' conventional advice. They tell you exactly how to do a conventional job.

Shouldn't we be taking the...
Forum: Renovations & New Construction 12-16-13, 11:00 AM
Replies: 588
Views: 514,618
Posted By AC_Hacker
Less? How much less? In this thread, I keep...

Less? How much less?

In this thread, I keep hearing words like "negligible" and "less".

What do they mean? No one has offered any analysis, or found any studies to shed any light on what is...
Forum: Renovations & New Construction 12-14-13, 03:51 PM
Replies: 588
Views: 514,618
Posted By AC_Hacker
michael, I think that enough time has gone...

michael,

I think that enough time has gone by for the bloviation to fully dissipate.

I haven't forgotten that you have a nice radiant floor build going on down Mendocino way.

Hope the...
Showing results 1 to 25 of 131

 
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