Quote:
Originally Posted by Acuario
If your connections are as you say then they are the wrong way around.
Heat always travels from hot to cold, never the reverse.
You need to feed the hottest water to the hottest point of the tank for it to transfer otherwise you will find the water leaving the top of the heat exchanger may well be the temperature of the hottest water in the tank.
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Everything is good.. just checked.
Water from collectors goes to the top connection of heat exchanger / returns from the bottom of heat exchanger.
Been so long since I looked at it.. couldn't remember.
You pursuaded me into putting my fresh coffee down to go check.
good to go!