- Does this device exist? - 2 Updates
- Here's the deal on that water heater - 1 Update
| whit3rd <whit3rd@gmail.com>: Oct 03 03:45PM -0700 > There is a receptacle under the sink but it also powers the > diswasher. I am concerned that if both the dishwasher and the water > heater are on at the same time it will pop the breaker. Breakers (thermal type) can tolerate a short-duration overcurrent, so all you really need is a low-voltage AC relay, coil in series with... the water heater. Problem: if it turns off the dishwasher, does the electronic controller forget that it was in a cycle, or on a timer, and stay OFF? Old dishwasher controls (cam and motor) would continue after interruption. Turn it around the other way, and sense current into the dishwasher, turning off the water heater... but the dishwasher has a complex cycle, not a constant current at all, how would you know the right current-draw threshold? It can be done, but running another circuit to the kitchen is easier. While you're at it, see if 240V heaters are available, the wire won't have to be as heavy... |
| Rob <nomail@example.com>: Oct 04 01:14PM > I don't know how others do it,but many days my wife will wash 2 or 3 > loads of cloths. She will be drying the first load while the 2nd one is > washing to save time. Here we have 230v line for all purposes (except industrial stuff which users 3x230v 3-phase, 400v between phases). The problem would only occur in older installations where there is only a single circuit of maybe only 10A. Nowadays all circuits in homes are 230V/16A. So you can use a total of 3.6kW which should be enough, or else you could have 2 circuits. Main fuse is usually 35A. |
| Jeff Urban <jurb6006@gmail.com>: Oct 03 10:48PM -0700 >I will let everyone else tell you why it won't work or otherwise. HA HA HA Nobody really knows how to do plumbing. you take that water heater and you can put it almost anywhere you want. now to your showers, you want a separate ¾" line to feed them all the way from the main. That way when someone flushes you don't get burnt. Well it usually isn't all that bad but it isn't pleasant. Still, a properly designed system does not do that. Because people can't do this now they got valves that regulate the temperature for the shower. And they cost, when all you had to do was to run a separate cold from the main to all the showers. Even then, to the hot at your sinks, dishwashers, tubs, washing machines, there will still be pipes with cold water in them. And when you stop using it that heat will go from the water into the house. You want immediate, you said that. They make them. But they are not suited for like when you wash clothes. Made for intermittent use, ten loads of clothes and I bet real money they are history. People used to take water from the river, run it back to the house and pot by pot heating up on the wood stove filling a large, wide barrel for someone to bathe. (three times a year whether they needed it or not) They survived. If not we would not have been born. |
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