Blog by Charis Fowler, Environmental Practices Adviser:
At Kedleston Hall the conservation heating in part of the property uses blown hot air heat emitters. As the fans are noisy, the property switches them off while the show rooms are open to our visitors. What we’ve only recently discovered (because we’ve now got new biomass boilers – that work – connected to the original plumbing) is that the hot water was still being circulated from the boilers around the heating system, even whilst the fans were off! This has now been remedied, so that the hot water is only circulated whilst the fans are on. As you can see in the graph below, this has had a dramatic effect on reducing the energy use.
Although energy use was dropping during the summer months, there’s a stepped reduction visible when the pumps were switched off at the same time as the fans. A lesson for us all to make sure we understand all that stuff in the boiler room!