Probably open up a can of worms here.
How often should a combi boiler on a sealed system need topping up? I'm sure some people will say never as any sign of a pressure stop is a leak, but the Worcester Bosch website says once or twice a year is perfectly normal.
Take got example my system. Since the heating went off last year in April, I've lost a grand total of 0.1 bar (digital display). I'm going to assume that amount of water over that time is nothing to worry about and would be almost impossible to trace, and it's when you're losing that amount every day that you need to worry.
I've got the boiler being serviced next week so will ask them, but just wanted to gather thoughts here. For full disclosure I am a bit of a worrier so sometimes these things play on my mind.
How often should a combi boiler on a sealed system need topping up? I'm sure some people will say never as any sign of a pressure stop is a leak, but the Worcester Bosch website says once or twice a year is perfectly normal.
Take got example my system. Since the heating went off last year in April, I've lost a grand total of 0.1 bar (digital display). I'm going to assume that amount of water over that time is nothing to worry about and would be almost impossible to trace, and it's when you're losing that amount every day that you need to worry.
I've got the boiler being serviced next week so will ask them, but just wanted to gather thoughts here. For full disclosure I am a bit of a worrier so sometimes these things play on my mind.