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Thanks for your reply Bengasman. Maybe I didn't explain right. The immersion heater is not yet connected and the cylinder stat (next to it on the Megaflow) is also not connected to anything. The only connection to the boiler is via a temperature sensor / probe that came with the boiler...

Hi everyone I have just had a Worcester 30CDi system boiler installed in conjunction with a Megaflow 125 cylinder. The central heating is controlled with a DT10RF room thermostat and the hot water by a timer fitted within the main body of the boiler. I am trying to find out if there is a...

Thanks to you all for your replies. In reply to Bengasman, yes the system was thoroughly flushed but I do not know why the system wasn't balanced. Roger

Thanks to HSPH and Agile for your replies. The 15mm run is all running off one flow and return. Its a long length - the three upstairs rads alone are probably on a 12 metre run which then goes on to the two rads downstairs. The last one on the run takes an age to warm up. The plumber...

We have just replaced the aged Potterton boiler in our house with a Worcester Bosch 30CDi System boiler. Our house is a typical Victorian end of terrace, with three bedrooms and a bathroom in the original part of the house and two further bedrooms in a rear part of the house. We are...

Hi I am just about to replace our aged boiler with an new one. We currently have a conventional HW system supplied from an AGA and a floor mounted Potterton boiler for the CH. We have a five bedroomed house with two bathrooms and will be changing to an unvented system and using the AGA...

I have a Ravenheat 820/20T which has developed a problem with its ignition. If the boiler hasn't been used and is cold then it ignites correcty within 5 to 10 seconds of central heating or hot water demand. However after using the hot water for a bath or shower, the boiler will not...