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  1. #11
    Join Date
    Jun 2007
    Coventry, RI

    Default Re: Hot Water Heater

    I'm not really sure if a tank less water heater takes more time for the hot water to get to the faucet than a regular tank style water heater. Perhaps a little longer because it has to heat water that may be at say 55 degrees coming from the cold water side instead of room temperature water that is siting in the pipes and then the hot water coming from the hot water heater pushes it out. I do think however (and this is a guess) that the problem can somewhat lie in people's mindset. Many people that I talk to about my tank less water heater think that I have instant hot water at any given faucet. A tank less water heater is not a point of use heater (unless it is directly connected to a faucet) but a water heater that is just not heating water when it is not being used. So yes you may have to wait a little longer to get hot water but you are saving a good amount of fuel by not heating water that is not being used. If you are concerned about wasting water you may want to look into a pump that recirculates the water when a faucet is turned on until it is the desired temperature and then it will come out of the faucet. I have not personally used one but have seen them on Ask This Old House I thing.


  2. #12
    Join Date
    Jul 2009

    Default Re: Hot Water Heater

    They take longer to heat the water, that is known, you have to remember that the unit is off all the time until the water starts to flow, then a sensor turns on the heating element, be it electric or gas. It's kind of a trade off for saving money on your utility bill. The water will get there faster through a smaller pipe, the law of physics, but I doubt it would get there fast enough to make that much diff. I agree with sabo

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