buffer tank
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UFH condensing oil boiler short cycling
In the summer I replaced a massive Warmflow Bluebird 200 oil boiler holding 50L with a Grant Vortex 36-46 holding 21L. As its colder I have now switched UFH on but boiler short cycles every minute once up to heat. There was no short cycling with the Warmflow boiler. The UFH is set to 45c flow...- markmorrison1957
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- buffer tank condensing boiler oil boiler short cycling underfloor heating
- Replies: 87
- Forum: Plumbing and Central Heating
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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