You could (possibly- speak to a plumber) just fit a pump?
Noisy though and I was aiming for a more efficient setup at the end of it all, not something that uses more power. The immersion heater is OOOOLLLLLDDDDDD..
@hippy started
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Noisy though and I was aiming for a more efficient setup at the end of it all, not something that uses more power. The immersion heater is OOOOLLLLLDDDDDD..