Sting wrote:All these designs and comments are Lovely - but provide NO - NONE -- ZIP (pity doo DAA) ---- hot water if and when storage in below set point or worse:
OUT of energy and full of COLD water
here is a link to a system that will provide
Note how employing TWO thermal reacting valves will always provide code set point domestic hot water to the tap - (at the capacity of recovery)
traderfjp wrote: Is this a better design?