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How quickly might one expect errosion to penetrate the wall of copper tubing? In my proposed re-circulating system I'll be using Type L, 3/4" return line in a gravity flow system.

I did not realize that oxygen could actually "pass through" the walls of the PEX. Is this barrier physical or chemical in nature? Is there a chemical addative that may be added to a closed loop...

I've read in a few treads that when installing a hydronic heat system that you should use PEX pipe that is rated as having an O2 barrier.
Could someone explain the reason why the O2 barrier is...

Since we are on the topic of Arc-fault breakers, how many outlets can you put on one Arc-fault breaker? Compared to a standard breaker they are kind of expensive and I'd like to put two bedrooms on...

I just contacted my energy providers and here is what my calculated cost per therm will run me.
Electricity, Summer rate $2.97 per therm
Elcetricity, Winter rate $1.98 per therm
Propane ...

Today was the final day of the Iowa/Illinois Quad Cities Home Builders Association Spring Home Tour. I made a point of looking at all the water heaters that I could. Bear in mind, all these heaters...

See, I learned something new. I didn't know such a thing as a dielectric nipple even existed. But then two weeks ago I didn't know about dielectric unions either........
Once the nipple is connected...

Ron, (a.k.a. Sewer Ratz)
I'm located near the Quad Cities, about 30 minutes from Moline.
Thanks.

As a side note, we have been touring homes these past two weekends as the Quad Cities Home...

Yes, I assumed that from the start, but the price of propane has gone up so rapidly here and I don't see that situation improving any time soon. That's why I'm here, throwing all these ideas around...

I recieved a letter from Illinois State Senator Dan Rutherford. In it he explained that anti-gun Chicago Democrats are leading legislative efforts that would require gun owners to carry $1 million...

OK, You've talked me away from the attic heat recovery theory. I can see the problems of potential leaks, condensation and the meager returns for the effort invested. I will investigate further the...

Hummm, how about pumping all that heat into an indoor pool, then drawing off that? Seriously though, it's an interesting concept. Are you thinking of a focused parabolic mirror to heat the water? How...

I do understand the drawbacks of operating an outdoor wood boiler. We have used a home built airtight wood stove exclusively for the past 30 years to heat our home. There is a like new, 30 year old...

I did some looking around and found another tread that speaks to some of my ideas.
http://www.terrylove.com/forums/showthread.php?t=26627

If I did use a re-circulating pump, what make and model...

I recently purchased a Marathon water heater for my new home, which is currently under construction here in northwestern Illinois. When making my decision on purchasing a water heater I considered...