Draindown & replace heat exchanger (fix onto outside of cylinder) and both Immersion units (I already have these parts). New heat exchanger looks like different dimensions (as unit is over 10 years old now) for the incoming/ougoing piping so some rework of copper piping should be required. Insulate heat exchanger. Refill cycliner adding X100 protective mixture (will be supplied). Date to be agreed and scheduled in. E8 Hackney location.
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