vailant ecoplus 618
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Most efficient way to run modulating boiler with UFH to prevent cycling
I have a Vaillant ecoTec plus 618 boiler. The minimum heat output of the boiler is 4kw. I have UFH downstairs with 5 zones. Some of these zones are very small, like the utility room and the study. I think the UFH manifold is set to around 32/35°C. The house is a well insulated new build and...- tom23432
- Thread
- boiler cycling buffer tank ufh underfloor heating vailant vailant ecoplus 618
- Replies: 8
- Forum: Plumbing and Central Heating
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Constant burning after Vailant PCB change
British gas were out due to error codes on Vailant Ecotec Plus 618 yesterday. The PCB was changed and it was back burning again. The issue now seems to be that it hasn't stopped burning even though there is no call for water or heating. It looks like the temperature is going above the...- jalexs
- Thread
- british gas pcb vailant vailant ecoplus 618
- Replies: 7
- Forum: Plumbing and Central Heating