Tankless water heaters

[laatsch55]

Must be those evil coal companies gouging you...

 

[Gepetto]

Must be those evil coal companies gouging you...

Not coal Lee, nuclear. They have a power plant in Seabrook NH that has been charging bond fees for forever.

 

[laatsch55]

Halfway there....plumbing done..

 

[laatsch55]

Done....and Jani's checking out the shower now....

 

[Elite-ist]

What, you didn't WOPL the heater control, yet, Lee? Seriously, that should give you peace of mind for some time. Hot water is a necessary part of existence, like slow-cooked ribs.

Nando.

 

[laatsch55]

The she part of it absolutely. Been out of clean clothes for a week.

 

[orange]

My computer being on all night sometimes if I fall asleep without shutting down and the fact that I leave the 13" TV and DTV converter box on all night in the bedroom as a night light/sign I'm alive cost more money than hot water here...\

and I have my own washer and dryer.

 

[Gepetto]

Done....and Jani's checking out the shower now....

Amazing the amount of plastic in the heater section...I would not have guessed that given the amount of power involved.

 

[laatsch55]

Hi temp thermoplastic, sounds like THHN insulation...

The newer low-flow Water Pik shower head must be right in the middle of the preferred rate as it cycles a couple of relays pretty regularly. There is some overshoot on the hot side and slow recovery on the cold side, so the water temp is in a state of constant flux. The incoming water this time of year is 42 Deg so that doesn't help. I heated a lot of water and generated a lot of steam with Hot Oilers in the oilfield and out of all the things we did make consistent temp steam was a bitch, constatly on the controls, so I do understand how hrd this is to do on the fly...

 

[Gepetto]

Hi temp thermoplastic, sounds like THHN insulation...

The newer low-flow Water Pik shower head must be right in the middle of the preferred rate as it cycles a couple of relays pretty regularly. There is some overshoot on the hot side and slow recovery on the cold side, so the water temp is in a state of constant flux. The incoming water this time of year is 42 Deg so that doesn't help. I heated a lot of water and generated a lot of steam with Hot Oilers in the oilfield and out of all the things we did make consistent temp steam was a bitch, constatly on the controls, so I do understand how hrd this is to do on the fly...

I am amazed to see relays on the power switching too Lee. I would have assumed solid state for that job.

 

[laatsch55]

8-30 amp exactly like the ones we use on the 700 relay board. Resolution could be better I think...

 

[laatsch55]

I don't think the have Delta rate programmed quite right or their decisions pertaining to it..

 

[Gepetto]

8-30 amp exactly like the ones we use on the 700 relay board. Resolution could be better I think...

Big thyristors would have allowed 1/2 cycle AC control.

 

[laatsch55]

So twice the resolution....

 

[Gepetto]

So twice the resolution....

Much more than that Lee, I doubt they are banging the relays any faster than 200msec. The Thyristor would have potentially any fraction of an AC cycle depending on the thyristor type chosen.

 

[laatsch55]

OH..........DAYAM Dude, you know your power circuits don't ya....

 

[laatsch55]

I suppose a thyristor that can handle 30 amps AC is silly cheap[ compared to a 30 amp electromechanical relay...

 

[Gepetto]

OH..........DAYAM Dude, you know your power circuits don't ya....

That is what I do Lee...

 

[Gepetto]

I suppose a thyristor that can handle 30 amps AC is silly cheap[ compared to a 30 amp electromechanical relay...

certainly reasonable compared to the relay Lee. Even a 50A SSR is reasonable compared to an electromechanical relay.

 

[laatsch55]

True, buy those every day. Electric resistive heating elements have been around as long as el3ectricity, seems they would have a better way to transfer energy into water, microwaves come to mind as do lasers, would probably have to upgrade my 200 amp service....