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Thread starter Chuck B Start date Aug 29, Users who are viewing this thread. Total: 5 members: 0, guests: 5. Chuck B sea-bee. Messages Reaction score 2 Points 18 Location levering, michigan.

I have heard a number of conflicting suggestions on whether to connect a dishwasher to a hot or cold supply line. Some say connecting to a hotline reduces the need for the dishwasher to heat the water thereby saving energy.

I don't see where a dishwasher does it's job with cold water so I'm not certain I understand why others say cold water is better. Please advise thank you! Jadnashua Retired Defense Industry Engineer xxx. Follow the manufacturer's instructions! Every one that I've read calls for it to be a hot supply. I've found it best to run the sink long enough to get things hot before I turn the DW on. That helps, at least with the initial fill. I suppose, if you heat your water with electricity, it may not make a lot of difference, but keep in dating vs real life, not all DW are designed to heat the water If it can heat the water, it also can significantly lengthen the wash cycle if it's coming in hookup.

Sponsor Paid Advertisement. Dj2 In the Trades. Messages 2, Reaction score Points 83 Location Cold. I use hot water in the dish washer. So does everyone I know. Flapper Member. Messages Reaction score 27 Points 18 Location California. I've always seen dishwashers connected to hot.

Gary Swart In the Trades. What in the world hot be the sense of this? I do not believe anyone told you the water hot be connected to the cold! CountryBumkin Active Member. Terry The Plumbing Wizard Staff member. I may wash my clothes with cold, but the dishwasher is always connected to the hot water line. Joe B Member. Messages 30 Reaction score 1 Points 8 Location Oregon. Here might be one reason why.

If it takes a couple gallons of running for the hot water to arrive, one might think, "well, I might as well connect it to the cold water anyway. If the dishwasher pulls hot water water an inconsistent way, causing the tankless heater to short cycle or whatever, and it takes a while for the hot water to arrive, perhaps one "might as water connect it to the cold inlet.

In other words, if the hot line is delivering cold water to the dishwasher anyway, one might as well connect it to the cold. Pseudonym Member. Messages 45 Reaction score 3 Points 8 Location California. I know this is an old thread, but relevant. I am currently looking into a cold water supply dishwasher, for some reasons Joe B stated above I not only have a tankless, but it is at the opposite end of the house from the dishwasher.

The current dishwasher is meant to be hooked up to approx F hot water line our tankless is set to Fbut there is no way the tankless will ever deliver even warm water by the time the dishwasher is done filling. So we waste a lot of time AND a lot of water am in California where water is scarce due to drought bringing hot water to the sink not only for the first fill, but for EVERY fill in the cycle. I had read that Bosch can use cold water line.

I called, and while that is true it is not recommended for any loads except lightly soiled dishes. According to Bosch, the dishwasher cannot reach full performance from cold. I also read Miele dishwashers can use cold. I currently have email out to Miele, to see to see what they say.

One alternative is to hire an electrician to wire a new dedicated circuit for an instant hot water tank or tankless under the kitchen sink. I'd rather not go hot route, I have experience with doing this, it seems they often develop leaks dishwasher frequently need replaced every years with hard water mine is moderately hard. I'm retired and am trying to have less maintenance to perform in my home, not more, so would rather not go this route if I don't have to.

But it's not practical to keep wasting water and time to deal with a dishwasher that needs a hot line hookup. If anyone can recommend any other dishwashers besides Bosch and Miele that are known to perform well with cold water supply, please let me know so I can look into cold. Thank you. GReynolds Active Member. Do you not dishwasher hot water to rinse the dishes?

That way by the time the dishwasher is loaded the hot water is continue reading there ready for use. You could also recirculate the hot water. Reach4 Well-Known Member. Pseudonym said:. Click to expand Reach4 said:. I was under the impression that most machines had a setting to heat the water hotter than comes in. My experience with dishwashers is limited, but mine has such a button-selectable setting.

Maybe you have to select that each time. For what it's worth, we have installed a Stiebel Eltron point-of-use heater under the kitchen sink and it has been flawless so far. It's a ten-year-old Whirlpool. Fitter30 Well-Known Member.

Messages 4, Reaction score Points Location Peace valley missouri. Hot water supply. Never installed one that didn't want hw. I've looked at four Miele models so far that are all recommended to hook up to cold water supply.

Dishwasher Installation Hooked Up To Cold Or Hot Water?

Unless there is a situation that would require heated water - the reasons they gave don't apply to my situation. Before settling on one of the Miele's, I'm still looking for other brands that will give top performance from cold water, if anyone can recommend.

Bannerman Well-Known Member. Dishwasher detergent typically requires F to dissolve and for best performance. Although we are normally satisfied with the performance of our DW, we do find we must increase the water temperature substantially above the usual recommended F otherwise, DW performance is not satisfactory. We've been considering a tankless WH to permit the water temperature to be normally set to F, but also allowing the water temp to be temporarily increased at the start of each DW cycle.

Alternately, also considering a thermostatic mixing valve to supply F to household fixtures, but with an additional separate hot water line feeding only the DW, to supply higher temperature water directly from the WH.