Recent content by womble

Just to check that there's no air trapped underneath

Hi, How can you check that an AAV is working properly? Is it possible to let air off manually? Regards

Sorry I meant flow, not flux, that was a typo. With regard to flow and return pipes the manual says that "pipe connections to the boiler must be sized according to the system load, not dictated by the boiler connection sizes", so 22mm may be ok from a design point of view as it's a small...

Hi, I have a Keston C40 boiler that emits loud bangs in radiator pipes from time to time. It seems to happen when the boiler is shutting off in CH mode. I had a Keston engineer in but all he said was that the flux and return pipes were too small (22mm instead of 28mm) and that there was no...

Hi, I'm having a new Keston boiler and Megaflo fitted and I'm surprised to see that the expansion vessel looks like it's upside down: the threaded pipe is on the top and the car-type valve at the bottow. Shouldn't the car-type valve be on top? Does it matter? Regards

Hi, I had a preformed fire door fitted in my loft and as all the other doors in the house are stripped solid pine, I'm looking for a way to give this door a wood aspect. The door has a white finish which imitates wood grain. I've trying to apply coloured wax to it but it doesn't stick...

Hi, I'm considering adding a second toilet on the first floor with a new waste pipe down the back of the house, then round the corner to the side (the existing waste pipe is on the side of the house). What is the minimum slope for a toilet waste pipe? Regards

Actually my current Ariston is a 23KW and in terms of power it's perfectly adequate. I only have two bathrooms and the one in the loft has an electric shower. 24KW would be plenty. With regard to whether my boiler would be repairable, I don't know. Here's a more precise description of the...

Hi, I need to replace my Ariston EuroCombi SX20 combi boiler, which has developed various faults after just 8 years (scaling, leaks, faulty thermostat). I'm looking for a good value combi boiler, reliable and relatively compact. Is there a particular brand/model you would recommend? My...

Hi, My combi boiler (Ariston EuroCombi SX20 MFFICE) makes a groaning noise for 15-20s when I draw hot water, and after reading a few threads here it looks like a scale problem. Apart from the noise everything is working perfectly fine. 1. I was intent on putting some Fernox Boiler Silencer...