Vaillant unistor secondary return

coopersim · 4 Sep 2021

Is it possible to install a secondary return on the 200 litre model of the unistor? The instructions only make reference to the 250 and 300 litre models but the connections are identical across the range from what I can gather.

picasso · 4 Sep 2021

coopersim · 4 Sep 2021

Thank you

diynot

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Vaillant unistor secondary return

coopersim

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