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Instant Hot Water Dispenser Worth It?

Are those instant hot water dispensers, with small faucet installed next to the sink, worth the $2 or $3 extra per month spent on the electrical bill? My water heater is at the opposite end of the house, and it takes a long time for the hot water to reach the tap in my kitchen. So it might save water. Although, we don't drink a lot of tea or hot beverages.

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  1. I don't have one installed, but I think they're definitely worth it. Imagine having near boiling pasta water instantly! That right there saves you gas/electricity to heat the pot + the time it takes to bring the water to boiling.

    1 Reply
    1. re: GarlicandGinger

      >> That right there saves you gas/electricity

      Not necessarily. The water in the instant-heater had to be heated in the first place, using that "saved" energy. Plus it's been radiating away all day. So in total more energy has been expended to boil the water.

      That said though, these things can actually end up saving energy. When you need to run the water for a minute to get it hot, you're also heating up all the pipe between your water heater and faucet. And that couple of gallons of water that went down the drain? That means an equivalent amount of cold water went into the water heater and will eventually need to be heated. So all told, depending on your usage patterns it could end up saving you.

    2. I don't think they're worth it. A small electric water boiler is inexpensive (as little as $15 or so on Amazon) and uses electricity only when you actually need it to boil the small amount of water you need.

      1. These things are kinda handy, though with microwaves most folks don't really crave them the way they did back in 70s. They are a not for every one -- the flow rate is more like a drinking fountain than a pot filler, which is perfectly fine for a cup of tea, but not ideal for filling a gallon for pasta...

        The biggest objection is that there is a very limited number of styles for the spout -- they wised up & realized chrome clashes with all the fancy new faucets finishes, but they still only have a handful of styles. The little heater box takes up a bit of space, but is not really a problem under most sinks,for safety reasons you don't want to mess with that.

        I doubt it'd cost $3 a month, it only uses a tiny amount of power for the short time it is on.

        If you have issues with hot water taking a long time to get to the tap you can address that separately - several solutions will speed up the delivery of hot water throughout your house, for a retrofit it is easier to use a recirculating pump. Any plumber ought to happy to install one. If you are going to do a major remodel you could even loop the hot water lines to cycle the water back to the heat source.

        1 Reply
        1. re: renov8r

          Thanks I'll look into recirculating pumps too.

        2. No, get a good kettle - though it will probably cost you a bit more than $15. I have a large Russel Hobbs and I could fill a dishpan with it if need be. Or do a small teapot - almost instant, that.

          What on earth is a water boiler? Does that mean a kettle?

          1 Reply
            1. re: ipsedixit

              OOH those are GREAT! I have one after experiencing the one my Ex BF has. very efficient , and yes they hold a good steady hot water, and when asked do a mad boil in a few, far faster and better than the microwave. You find that instant hot water addictive....yeah it's boiling, you can hear it.

              1. re: Quine

                Yeah, I'm not sure what did with myself before I got one of these.