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    • #54042
      pjsmith78
      Participant

      I have a Bosch propane instant hot water heater hooked up at our summer cottage. The water is fed from a 60 foot well with a submersible jet pump and then into a 50 gallon pressure tank. From there the water is fed into the cottage, with a line running to the hot water heater and lines running off it to various taps etc in the cottage. All power is obtained from a 4500 watt generator as we have no electrical lines at the location. My problem is that the water that comes out of the well and into the pressure tank is ice cold.

      The Bosch heater is a large one, but the water is so cold entering the heater that in order to heat the water to a usable level, the heater cuts the flow so low that it is almost a dribble coming out of the taps. Barely usable. Overall water pressure is fine coming out of the A.O.Smith 50 PSI bladder pressure tank.

      Does anybody have any recommendations on some type of preheater or something that would allow proper flow of warm water, without replacing the whole system?

      Thanks for any help.

      PJ

      PJ

    • #265886
      HKestenholz
      Participant

      That’s not how it works. There is no flow regulator in the heater to make the water flow lower to match the heating rate. It is the other way around. The gas regulator adjusts to the flow rate. The problem is more likely that the heater has become limed after a few years of use. That is what happens to copper tube heaters with well water, they lime up fast just as a tankless coil in a boiler does. The gas regulator is probably stuck due to the liming. You’d ordinarily have to clean and rebuild that type of heater yearly for well use. Cold well water isn’t enough to bother the heater otherwise, it just should be big enough for the water flow and you don’t have much – a trickle is a problem.

      http://www.heatpro.info heat/cool right-sizing

      When citizens are entitled to food and medical care there is no poverty and no need for retirement security.

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