1 Lug (BeoÄin), a village in Serbia. 2  Lug, County Offaly, a townland in the civil parish of Durrow, barony of Ballycowan, Ireland.  Lug (Derventa), a suburb in Bosnia and Herzegovina region Bosanska Posavina.
1 If you are keeping the same type of boiler (e.g. if you have a existing combi boiler you are replacing it with a new combi), the price to buy and install it will start at about Â£1300 provided there are no real plumbing adjustments required.pproximate starting prices are discussed below: 1  If you are keeping the same type of boiler (e.g. if you have a existing combi boiler you are replacing it with a new combi), the price to buy and install it will start at about Â£1300 provided there are no real plumbing adjustments required.
The cost of installing a new or replacement boiler is often more expensive than the boiler itself, so you need to know what to expect before you contact a qualified boiler engineer.This isn't a job you can do yourself to cut costs, unless you're a Gas Safe registered installer.eplacing an existing gas condensing combi boiler in the same position as the previous one. This job involves removing and disposing of the old boiler before installing the new one. Expect to pay Around Â£540 - Â£660. If your heating system is very old, it may need a mechanical flush-which costs around Â£510.