pipe size

Hi, I live in an old Victorian terraced house 2bed/1bath with a 23-30y Vaillant Turbomax 242 E combi boiler that came with the house when we moved in 3 years ago. We booked a boiler replacement through an online service for today. The new boiler is a Worcester 4000 30kw (I plan to do a loft...

Hi, I'm in the process of renewing some plumbing work from copper and compression fittings to pushfit plastic in my bathroom. It's a mixed system gravity fed hot and mains pressure cold, The hot water tank is only marginally higher than the bath taps at around 1.5 metres. Currently the Hot water...

Had a quick search but no answers... Plan is to use a plate heat exchanger on the thermal store to provide mains pressure hot water to 2 bathrooms, objective is that both bathrooms can be used simultaneously (one is bath and shower, the other is shower only) without massive temperature/pressure...

I would like to broaden my theoretical understanding by using an simplified example: There is a building containing one room with a floor surface of 40 m2 which needs exactly 2.8 kW’s to maintain its room temperature while outside temp is -10 celcius (The heat-loss of the house is 70 Watt / m2...

Hi All I recently just had a full new central heating system installed, all pipes have been replaced and new hot and cold pipes have been replaced to cater to my new home extention and home. I also have a combi boiler. I paid British gas £8795 for the job. This was yesterday. However today I...

My house was built around 1980, and water mains is supplied via 22mm plastic pipe. At the entrance, it is reduced to 15mm copper which is used throughout the house. I will be changing pipework inside the house soon. My options are: 1. Easiest one: use 15mm plastic from the stopcock. Leave...