R
reddwarf4ever
Hi
my original boiler a potterton netaheat was over 20 years old and although having performed very well, was retired 5 years ago. It was replaced with a Valiant ecotec plus 418.
unfortunately at the same time I had an extension built and the original location of the hot water cylinder was moved to an upstairs cupboard just above the boiler, in the kitchen. also the original water make up tank and piping are still in the original location, such that the pipe work runs from the loft tank across a false ceiling to the immersion cylinder and ch pump. In hindsight I should have had the loft tank relocated to be above the immersion tank and ch pump....I was having lots of problems with ingress of air, through the expansion pipe work to the loft tank, so my plumber told me. He joined the expansion pipe to the water outlet from the ch header tank, this stopping the air getting in. this works very well, no more air from the rads. I treated the system 2 years ago with a proprietary chemical and it seems to be doing the job. very little air from the rads.
Recently however the boiler has become noisy, whining and the odd gurgling noises, still very little air and only from one radiator every week or so. I run the boiler at 78oC I have been told this is ok..
the he reason for this is it is running in heat only mode, relying on the immersion cylinder stat to operate the boiler. as the immersion cylinder is only a short distance from the boiler, I am unable to set the boiler temperature any lower as it continually cycles, seems the boiler does not have enough temperature differential to allow it to fire at minimum burn....so have set the cylinder stat to as low as I can to gain the temperature differential, seems to work very well this way even if the heating switches off and the HW is in demand, it rRely shuts down on over temperature, as it did before I reduced the immersion stat and raised the boiler temperature.....the CH boiler is also a little noisy, gurgling noises.....
The boiler has started a low whine, plus a little gurgling sound...this is constant except when it reduces to low firing e.g. hot water only....Not sure if to retreat with chemical treatment and or get the boiler serviced. hasn't been serviced for 3-4 years, which is naughty I guess, but when it's running ok, seem to worry about all the other million things there are to worry about. LOL
As a matter of interest, when the boiler engineer installed this boiler, I asked about the boiler run on timer, as I had done a little research, he said my system didn't have the extra wire and it wasn't up to him to provide it.
I ran a cable from the ch programmer upstairs into the loft, down through a bedroom into the kitchen to the boiler and had an electrician hook it up....seemed poor service from the boiler installer, who wasn't interested in that the boiler kept cutting out due to vast quantities of air in the system, until my plumber resolved it......
thanks
my original boiler a potterton netaheat was over 20 years old and although having performed very well, was retired 5 years ago. It was replaced with a Valiant ecotec plus 418.
unfortunately at the same time I had an extension built and the original location of the hot water cylinder was moved to an upstairs cupboard just above the boiler, in the kitchen. also the original water make up tank and piping are still in the original location, such that the pipe work runs from the loft tank across a false ceiling to the immersion cylinder and ch pump. In hindsight I should have had the loft tank relocated to be above the immersion tank and ch pump....I was having lots of problems with ingress of air, through the expansion pipe work to the loft tank, so my plumber told me. He joined the expansion pipe to the water outlet from the ch header tank, this stopping the air getting in. this works very well, no more air from the rads. I treated the system 2 years ago with a proprietary chemical and it seems to be doing the job. very little air from the rads.
Recently however the boiler has become noisy, whining and the odd gurgling noises, still very little air and only from one radiator every week or so. I run the boiler at 78oC I have been told this is ok..
the he reason for this is it is running in heat only mode, relying on the immersion cylinder stat to operate the boiler. as the immersion cylinder is only a short distance from the boiler, I am unable to set the boiler temperature any lower as it continually cycles, seems the boiler does not have enough temperature differential to allow it to fire at minimum burn....so have set the cylinder stat to as low as I can to gain the temperature differential, seems to work very well this way even if the heating switches off and the HW is in demand, it rRely shuts down on over temperature, as it did before I reduced the immersion stat and raised the boiler temperature.....the CH boiler is also a little noisy, gurgling noises.....
The boiler has started a low whine, plus a little gurgling sound...this is constant except when it reduces to low firing e.g. hot water only....Not sure if to retreat with chemical treatment and or get the boiler serviced. hasn't been serviced for 3-4 years, which is naughty I guess, but when it's running ok, seem to worry about all the other million things there are to worry about. LOL
As a matter of interest, when the boiler engineer installed this boiler, I asked about the boiler run on timer, as I had done a little research, he said my system didn't have the extra wire and it wasn't up to him to provide it.
I ran a cable from the ch programmer upstairs into the loft, down through a bedroom into the kitchen to the boiler and had an electrician hook it up....seemed poor service from the boiler installer, who wasn't interested in that the boiler kept cutting out due to vast quantities of air in the system, until my plumber resolved it......
thanks
