Martin Brown wrote in news:qmqi8r$128a$ snipped-for-privacy@gioia.aioe.org:
No one argued that. EVER.
I was talking about saving a company money where they already have under sink POU (POINT OF USE) HWOD units. Those are ALL electrically fired, and yes, a properly configured unit CAN deliver hot water with only 1200 watts.
Do you stand there oblivious to the speaker and his words when in a face to face conversation as well?
Damn! And you are "a teacher"? !???
They don't have restrooms? What do they have, outhouses?
Now you're lying. You proposed using batteries to heat water used in restrooms. That requires a battery bank and it has to go somewhere....
Nonsense. And even if you have to replace a thermocouple, they cost $15. What does a battery bank sufficient to heat water for restrooms cost?
ROFL. Sure, just plug it in. We're talking about commercial restrooms, yes? A typical one has many sinks, it's not going to be served with a plug in tankless, more likely it's going to be served by a tankless that's direct wired on an appropriate amperage circuit. And after you just "plug it in", where does your battery bank, of sufficient size to heat water during the daytime go?
A 1200 Watt unit can't even handle a sink, forget about a shower, unless the incoming water is already 80F. And what logic is there to having 70 of these for 70 sinks, instead of a larger unit that handles a number of sinks, like one unit for one rest room with 5 sinks? Why run more electric circuits, have more 5 things to fail, instead of one? Seems totally illogical to me.
That's more pure BS too. Solar uses the grid as it's buffer.
Wrong, always wrong.
It all depends on your definition of hot and what flow rate is acceptable. In a previous post you claimed near boiling water was needed for sanitary reasons. You'd get a tiny trickle at that delta. Of course no one but you thinks they need near boiling water. A sink would have a trickle with a 60F delta at only 1200W. Such a unit sounds like one for somebody who's stuck with an existing 15A outlet and has no choice or where the incoming water is already 70F and they only want 100F water.
Yeah, a lotta juice. More than you can calculate, obviously. 1200W? You're crazy. Always, always, AlwaysWrong.
And a battery bank is going to do it? Show your math, AlwaysWrong (you obviously can't, even though it's all been done for you).
They actually have a 6L, 10L or 15L hot tank inside and Always wrong is just too clueless to know this. If the product he described existed in the US then he would be able to point to an example of it.
Or perhaps US water has a different heat capacity to that in the ROW?
Here is an example from the UK 2kW and 10L tank.
I could not find one in the UK with as low a power as 1200W the most feeble cheap and nasty one I could find was 1.5kW with 6L tank.
Always wrong is as ever always wrong.
They are HWOD so long as they are in steady use, but if there is a sudden burst of activity the hot water very quickly runs out.
-- Regards, Martin Brown
wrote in news:aeb802db-50f7-457d-b0d9- snipped-for-privacy@googlegroups.com:
They all work just fine as they are currently.
Switching them over would not be that hard. A water heater tank element works on DC or AC.
Your brain needs a couple trillion more functioning neurons as the mere two neurons you currently have 'working' are failing you.
wrote in news:aeb802db-50f7-457d-b0d9- snipped-for-privacy@googlegroups.com:
So you think a bathroom with 6 sinks across it has six 1200W outlets wired up under it? You ain't real bright.
These were not retrofitted you retarded twit. They are all hard wired new installs at the time the building was erected. There are no plugs.
The part that 'just gets plugged in' is the battery feed to them.
You are one retarded f*ck.
wrote in news:aeb802db-50f7-457d-b0d9- snipped-for-privacy@googlegroups.com:
have
You do a lot of guessing, child.
Your problem is that you only have the aptitude to play with your feces. You should stop posting in the adult forums of Usenet and go back to your room, so you can get back to your favorite pastime.
You stink, boy.
You cannot even get the area right or the math on a single building with 72 sinks and ten showers. Now you want to declare that each building should have a 1.5GW solar array on it.
You are a clueless little piece of shit running around a technical Usenet news group as if you have even half a modicum of brains about anything, much less science or adult mature behavior.
Go away, little boy.
Martin Brown wrote in news:qmseev $1elp$ snipped-for-privacy@gioia.aioe.org:
Martin Brown is the type of guy in need of a maturity upgrade visit.
Martin Brown wrote in news:qmseev $1elp$ snipped-for-privacy@gioia.aioe.org:
Laughable stupidity there, putz.
HWOD, by definition, is meant to fulfill 'sudden burst' demand. That makes your crack even more stupid than the dipshit you are trying to back up.
With units on every sink, the only think in danger of 'running out' during one of your precious 'sudden burst' events is the patience of a circuit breaker.
You are the one who said just "plug it in".
Interesting that you're saying that now, after I brought up that is how they would typically be wired. PS: That increases the cost for your battery retrofit. And if the concern is electric cost, why do that, which only reduces electric rate to the night rate, instead of putting solar on the roof that can reduce it to zero net usage?
I haven't seen large storage batteries that are plugged in. But then you haven't said what batteries you're proposing to use, how large they are, where they will go, how much they cost. A data sheet showing this plug-in battery would be a start.
What is laughable is that your 1200W on-demand water heater can only do a 35F delta at about a liter a minute. A liter a minute is already an annoyingly small stream for washing your hands. With incoming water of 45F, which is common in much of the US in winter, you'd have 80F "hot" water. IT's better than 45F, for sure, but it doesn't meet your requirements for hot water either, at one point you said it needs to be near boiling.
Say what? That's a whole new area. Why would a circuit breaker need patience? You just claimed these are not plug-ins, (but first you claimed they were). You just said they are hard wired in. So, how is it that a hard wired 1200W load, or any load that's wired to code, needs the 'patience of the circuit breaker'?
wrong, always wrong
Oh no, not at all. I just tossed that out because you said it was impossible for solar electric to be able to handle some rest rooms. That largest array is 1.5GW, so you must think water heating for your
70 sinks would take more than that. But here, I'll help you out. You say these heaters use just 1200W. So, let's use your 1200W. Let's take the largest number you came up with 70 sinks. 1200x70 = 84KW. A solar panel produces about 320W, so that would take about 260 panels. But that's only if you insisted on meeting absolute worst case peak, with all 70 sink heaters on at the same time. There is no need to size it for that, it only needs to be sized to equal the average energy used by those sinks. So, take the usage over a year, size it to equal that many Kwh. It will in most cases be much smaller, maybe only a quarter, maybe a third. So you have a max number of 260 panels for peak, but really only need maybe 100. Nothing exceptional about that. And then you're energy cost isn't the night rate, it's zero or close to it. And if you oversize it, the solar will just offset other electric usage at the facility, cutting that portion to zero too. Sure looks better than a battery bank.
Say what? Throughout this thread you've referred to this as on-demand hot water. Now you appear to have just shifted to saying that they are actually small tank type. Martin was right, you're confused again.
point-of-use water heater on-demand water heater
The former can be on-demand or small tank type. I've had point-of-use tank type for a hot water dispenser to make tea at the kitchen sink. It's not on-demand, the tank is hot all the time and it can't supply endless hot water.
Good point. Yes, I've seen those, small tank type heaters for point of use. And maybe that's what he's confusing with on-demand.
If the product he described existed in
Yes, you have full temp hot water as long as there is intermittent use that allows for recovery. Use it more than that and the temp drops. Use it continuously and with his 1200W you could do about 35F delta at a liter a minute.
Whoey Louie wrote in news:c2ca847a-9601-4697- snipped-for-privacy@googlegroups.com:
Your brain is bent over the phrase "plugged in". Get over it, child. It is not a reference to residential wall outlets you STUPID FUCK.
Whoey Louie wrote in news:151f1dab-e1bd-4407- snipped-for-privacy@googlegroups.com:
Wow... are you a whole eleven years old, child?
Your sentence is lame again too, child.
The group does not need an illiterate child trying to tell folks where solar panel installations get placed.
I am sure everyone thought it was the basement until you and your infinite wisdom came along.
What a joke you are.
John Doe wrote in news:qmvcl0$ftg$ snipped-for-privacy@dont-email.me:
You dew make a good point. :-)
It will be lost on the know-it-all though.
It's becoming more common for air conditioners to have humidity control built in. Basically the thermostat/humistat turns down the fan speed while keeping the compressor running full tilt. The coils get colder, pulling more water out of the air.
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