john guest

Hi, I was wondering if there is anyone that can provide advice on my UFH design (attached). Each Run is circa 75m, I have gone for 150mm spacing at the front as there are large bi-fold doors. The top section has sufficient room height to install roughly 75mm insulation then 15mm pipes and a...

http://www.screwfix.com/p/jg-speedfit-pem062215wp-straight-reducers-22x15/18873 I need a standard 22mm to 15mm inline reducer, can't find a pack of 1 on screwfix. I can only find the one above but one end looks strange to me. Can anyone tell me how to use it?