secondary return

I'm a plumbing novice so first of all I apologise if I'm not explaining this situation correctly. I've recently renovated a house for my family to live in and we're having an issue with water not staying hot when the secondary return circuit is on. From a starting point of fully heated the...

Hi I'm considering putting a secondary return loop and pump to help reduce the time it takes for the hot water to reach the taps since we installed an unvented cylinder in the garage. Currently the hot water pipe from the cylinder goes straight into the loft and across to central point where...

Hi all Re-plumbing a 4 bed, 3 bath house as part of a renovation and I am trying to figure out of a Secondary Return loop is worth the extra work? The longest pipe run from the tank to outlet would be about 18m. If we made up a secondary return loop the total pipe length would be approximately...