7 ms·

I have the same setup. I used it to make a green light go on when we have more than 500 watt excess solar production, so my wife knows she can turn on the washi

• teekert 3y ago
  That’s very cool. Btw our dishwasher (and laundry machine) has 2 peaks at 2 kW, our dryer does 500 W continuous.
  • masklinn 3y ago
    Makes sense since you're in the netherlands, euro appliances generally get fed cold water and warm it internally, the 2kW peaks would be when it needs to warm up the cold water. The dryer has to warm air up pretty continuously to dry the contents. At 500W I assume it's a heat pump? (IIRC condensers are usually around or above 1kW)
    • teekert 3y ago
      Ah yes, the dish and laundry washers are indeed not “hot fill”, that is hard to find here indeed. The dryer is a heat pump yes, some years ago it was the most energy efficient one we could find. (But I guess it runs longer, relying more on tumbling than heat, and wears out cloth faster).
      • snickmy 3y ago
        I always wondered why we cannot find hot filled appliances in the old continent. Also, I wonder why compressors in heatpumps are not multi-speed (basically energy consumption can be modulated). If you are an expert please let me know I'd love to talk more.
        • masklinn 3y ago
          > I always wondered why we cannot find hot filled appliances in the old continent. You can find them but they'll be in the semi-professional space and above (relatively expensive high-duty). They're very rare in the consumer space because - it requires running more hot water lines / extensions, historically houses are built with lots of cold water lines but hot water lines only where required - for their heating requirement, a normal electric plug is more than sufficient in the land of 230V, this is is a similar issue to kettles basically - they require an internal heater anyway as residential water circuits come nowhere near the high temperature cycles: 50-53C is common to avoid risks of scalding but some are set as low as 45, the standard high temp cycles for washing machines are 60 and 90, and dishwasher commonly have a heavy cycle around 65 - it makes the machines more convoluted since they needs more inlets, a mixing valve, etc... - they're not really compatible with hot water tanks: you don't want your dishes or laundry to empty your shower water, plus hot water tanks are commonly electrical so there's no real gain given per the above the machines need a heater anyway
          • philwelch 3y ago
            > for their heating requirement, a normal electric plug is more than sufficient in the land of 230V, this is is a similar issue to kettles basically US uses a split phase system so you can combine two 120V circuits to get 240V. This is how most heavy appliances are wired.
            • masklinn 3y ago
              Right but that means you need a special setup either way. In europe you just have a normal electric plug, nothing special.
              • philwelch 3y ago
                North America has standard plugs for 240V too. They’re different from the 120V plug for the obvious reason, but it’s not a particularly special setup.
                • 3y ago
        • amluto 3y ago
          My dishwasher is European and is hot-fill. It doesn’t even have a cold water connection. I don’t think I’ve ever seen a cold fill dishwasher in the US. I wonder what’s up in Europe.
          • b112 3y ago
            Most dishwashers only have one inlet. And most also heat the water(more), even if fed hot water. I believe the premise is, with 240V, they can heat faster. So people plumb them with cold when in 240V land, and hot when in 120V land.
            • 0x457 3y ago
              I personally hate dishwashers that don't heat up their water. I've been to multiple places where "hot water" stats being hot only after 5-10 minutes. It greatly reduced dishwasher efficiency.
      • ballenf 3y ago
        What happens if it gets hot water, but expects cold? Seems like if it's not too hot to melt plastic parts, it would be ok?
        • masklinn 3y ago
          The colder cycles will not work correctly (they have only one inlet and no mixing circuit), they might scale more than normally, and I wouldn't be surprised if some put themselves into a security mode. The plastics used for some of the inlet circuitry might also age abnormally when it gets 50C water rather than the, say, 10~30C range it is designed for.
      • namibj 3y ago
        A little while ago I've thought of just getting a few people together and filling a small container with washers that for regulatory reasons are better in the US than in Europe (I forgot the exact details, sorry). If you happen to have ideas for how to do such a group-buy, please let me know.