PVC vs CPVC plastic pipe

[terrors r us]

6000 watt heaters?
The glued joints will fail before the scd20 pipe will.
And of course it is the inside dimension that changes, if it were the outside it wouldnt be 2" anymore...

It don't matter if you have a 100watt heater or a 6000watt heater...
if working properly it will not heat up the pipes... First of all...all heaters
come with a thermostate so if either heater was set for 80f then the only
difference is the volume of water that each could heat up.
In a large tank the 100w would never catch up(be on all the time) and burn out.
The 6000w heater would reach the 80f and then shut off.
Also these heaters come with a flow sensor to shut down if no flow and
I will also have other fail safes, Another inline thermostate down the
line that would shut down the power to the heater if temp. exceeds
a specified set point....and raise alarm...

I never heard of aquarium heaters designed to boil water.....

 

[terrors r us]

Oh jeezus man. I didn't start an argument here, you did. You wanna argue about paint on cars now? it was a metaphor, get over it.

If your overflow plumbing is so tight on capacity that the difference between sch20 and sch40 makes the difference, you've cut it too close. What happens when a leaf or a fish turd gets stuck in there, wet carpet? come on.

you two guys crack me up.....LOL
Must be a MASSIVE fish turd!!!

 

[cvermeulen]

How big is this tank anyway??

If we're talking about heaters designed to go inline in the piping, you should be fine. When you first said 6000 watts I pictured a hot water tank heater siliconed into a tee joint or something.

Why would the glued joints fail before the piping? My understanding (which may be flawed) of PVC cementing is that it's similar to acrylic cementing, creating a bond that is as strong as the base material and should not be affected by heat.

 

[cvermeulen]

do you go faster without your mother sitting next to you?

I think a simple "yes" will cover this one. Can we get back to the topic though? Sorry I mentioned it, like I said, it was an illustrative analogy.

 

[cvermeulen]

you two guys crack me up.....LOL
Must be a MASSIVE fish turd!!!

.058" is a massive fish turd?

 

[zennzzo]

It don't matter if you have a 100watt heater or a 6000watt heater...
if working properly it will not heat up the pipes... First of all...all heaters
come with a thermostate so if either heater was set for 80f then the only
difference is the volume of water that each could heat up.
In a large tank the 100w would never catch up(be on all the time) and burn out.
The 6000w heater would reach the 80f and then shut off.
Also these heaters come with a flow sensor to shut down if no flow and
I will also have other fail safes, Another inline thermostate down the
line that would shut down the power to the heater if temp. exceeds
a specified set point....and raise alarm...

I never heard of aquarium heaters designed to boil water.....

Even set at 80f how warm do you think the water will be coming out of a 2" fed, 6000Wt heater, 80F?


But as a side note: If it were me, and I was working on my system, that was going to include a pair of $907.00 inline heaters, I would not be considering PVC of any sch...I would be plumbing with stainless pipe...

 

[cvermeulen]

Even set at 80f how warm do you think the water will be coming out of a 2" fed, 6000Wt heater, 80F?


But as a side note: If it were me, and I was working on my system, that was going to include a pair of $907.00 inline heaters, I would not be considering PVC of any sch...I would be plumbing with stainless pipe...

I agree with your first statement. Although I think you might run into a problem in the event of a double failure - I.e. Heater stuck on, AND pump failed, so the heater sits there pumping 6000w into your PVC. At $900 however, I'm sure said heaters have redundant safety mechanisms, and besides, how likely is it for your heater to stick ON and your pump to stick OFF.

As for stainless piping... I haven't priced it out lately, but I bet you'd be into it for a lot more than $900 in pipe by the time it was plumbed.

 

[zennzzo]

As for stainless piping... I haven't priced it out lately, but I bet you' d be into it for a lot more than $900 in pipe by the time it was plumbed.

???
I was saying that if I was building a system that
INCLUDED
2 - $900.00+ heaters
I WOULD be using Stainless pipe, regardless of price

 

[cvermeulen]

I know what you were saying... I guess I wasn't very clear, re-reading that. What I was getting at is that it wouldn't take much stainless plumbing to make the cost of the plumbing outweigh the cost of the heaters. So if the guy is spending $1800 on heaters already... Oh whatever, it doesn't really matter.

 

[zennzzo]

I know what you were saying... I guess I wasn't very clear, re-reading that. What I was getting at is that it wouldn't take much stainless plumbing to make the cost of the plumbing outweigh the cost of the heaters. So if the guy is spending $1800 on heaters already... Oh whatever, it doesn't really matter.

agreed...it really doesn't...