Hi,
After 12 years of faithful service, the caked up heat exchange in my CD18R boiler gave up late last year. We live in Kent and the water is very hard and the limescale build up restricted flow and led to a crack in the exchange too.
This was replaced and the results were immediate (rads everywhere got nice and hot and hot water was quicker to arrive in the tank). Some years ago I did fit a "scale wizard", and whilst I fully acknowledge these do not remove the limescale the polarising effects do help in lessening the build up of the crud. I have recently brought a virtually new CD18R on eBay and had a couple of questions.
1) Can a non Gas Safe person replace the heat exchange in a boiler?
2) I want to store the spare exchange in a mild limescale removing liquid, what we people recommend?
The plan is to swap out the heat exchanges every year, putting the "spare" in a solution to clean out the limescale so that come the next year I have a clean one to put in the boiler.
ST
After 12 years of faithful service, the caked up heat exchange in my CD18R boiler gave up late last year. We live in Kent and the water is very hard and the limescale build up restricted flow and led to a crack in the exchange too.
This was replaced and the results were immediate (rads everywhere got nice and hot and hot water was quicker to arrive in the tank). Some years ago I did fit a "scale wizard", and whilst I fully acknowledge these do not remove the limescale the polarising effects do help in lessening the build up of the crud. I have recently brought a virtually new CD18R on eBay and had a couple of questions.
1) Can a non Gas Safe person replace the heat exchange in a boiler?
2) I want to store the spare exchange in a mild limescale removing liquid, what we people recommend?
The plan is to swap out the heat exchanges every year, putting the "spare" in a solution to clean out the limescale so that come the next year I have a clean one to put in the boiler.
ST