Hi
We need some basic advice in layman's language please. Plumbing is pretty alien to us!
We had new bathrooms installed last year. Part of the work in the main (upstairs) bathroom involved moving a radiator from one wall to another and also installing pipe work under the floor to fit an additional towel rail. We bought a couple of "designer" items, a Zehnder Fassane horizontal radiator and a Zehnder Yucca asymmetric floor to ceiling towel rail.
Frequently, when the CH pump switches on it sounds as if a tap has been turned on inside the radiator. Water sounds as if it is trickling through an empty rad. The rad gets hot all over though, so it can't be full of air, but we always get a small amount of air for a couple of seconds if we bleed it. If we turn the radiator valve off then we tend to get a similar, albeit less noisy trickling from the towel rail instead. Bleeding the towel rail does not result in any air escaping.
Not sure if this is relevant but we also find that one radiator in the hall (below the bathroom) tends to require bleeding on a regular basis, this is probably second in line from the pump outlet. This is a conventional radiator and, as you would expect, only half of it gets hot until we bleed it. We don't get any noise from it though and all the other rads in the house are silent and rarely need bleeding. The bathroom floor is tiled so we obviously can't get to the pipework underneath.
Our bathroom fitter has drained the bathroom rads a couple of times and re-filled very slowly, but we still get the same problem. He's never actually heard the noise because it doesn't happen every time, but he said that it's a common problem with designer rads because they are so thin. I'm not sure if we are being fobbed off!
It's driving us crazy though, especially at 5am in the morning! If anyone can point us in the right direction we would be seriously grateful.
Many thanks.
We need some basic advice in layman's language please. Plumbing is pretty alien to us!
We had new bathrooms installed last year. Part of the work in the main (upstairs) bathroom involved moving a radiator from one wall to another and also installing pipe work under the floor to fit an additional towel rail. We bought a couple of "designer" items, a Zehnder Fassane horizontal radiator and a Zehnder Yucca asymmetric floor to ceiling towel rail.
Frequently, when the CH pump switches on it sounds as if a tap has been turned on inside the radiator. Water sounds as if it is trickling through an empty rad. The rad gets hot all over though, so it can't be full of air, but we always get a small amount of air for a couple of seconds if we bleed it. If we turn the radiator valve off then we tend to get a similar, albeit less noisy trickling from the towel rail instead. Bleeding the towel rail does not result in any air escaping.
Not sure if this is relevant but we also find that one radiator in the hall (below the bathroom) tends to require bleeding on a regular basis, this is probably second in line from the pump outlet. This is a conventional radiator and, as you would expect, only half of it gets hot until we bleed it. We don't get any noise from it though and all the other rads in the house are silent and rarely need bleeding. The bathroom floor is tiled so we obviously can't get to the pipework underneath.
Our bathroom fitter has drained the bathroom rads a couple of times and re-filled very slowly, but we still get the same problem. He's never actually heard the noise because it doesn't happen every time, but he said that it's a common problem with designer rads because they are so thin. I'm not sure if we are being fobbed off!
It's driving us crazy though, especially at 5am in the morning! If anyone can point us in the right direction we would be seriously grateful.
Many thanks.
