Without being too technical and just in case anybody else has this issue. Bungalow, condensing boiler in the loft, flue over the bathroom window. The height of the flue is well within regulations. Fitting the boiler in a different location would have resulted in long unsightly runs for the condensate drainage pipe. I've noticed for quite a while that the PVC window ledge has rusty yellow stains on it. I incorrectly put this down to the acidic droplets or whatever from the flue gasses removing the white from the PVC window ledge. Cleaning with ordinary household cleaner was futile. Today I had a go with meths and a Brillo Pad. The stains came straight off leaving the PVC like new.
- posted
6 years ago