这是一个4间卧室(9散热器)西北。建于1975年,2013年我们买了。它的一个扩展属性。在2015年改变了锅炉。结合巴喜锅炉(楼上)n没有问题自去年当客厅散热器(扩展)停止工作。今年厨房散热器停止工作(9月)。叫一个工程师,化学清洗然后平衡所有的散热器。仍然没有效果。不管怎样我们叫另一个工程师。他安装一个过滤器,平衡系统,清洗锅炉锅炉他说有问题。 Anyways after a day expansion vessel went out of order and radiators downstairs did not work. Then hired a third engineer who fitted expansion vessel, flushed out kitchen n dining radiator and since then kitchen and dining one are working but upstairs bedroom and study room don't work or very mild when we switch on central heating. He suggested to powerflush and also suggested that pipe work is 15 mm thick so may need to change. Anyways hired fourth engineer and he did the flushing not through radiators but through the boiler. But still there is a problem. When switch on heating 2 or 3 radiators ( upstairs) don't work. By now spent £1500. 4th one suggested that most radiators are single panel and v old and needs to be changed as these were compatible with old central heating system and combi boiler is relatively new technology and changing pipe thickness will not solve the problem. We had been hiring engineer, spending money still living in cold. It is extremely frustrating. Everyone comes with a new idea and we do as they say is and still no avail!