A system boiler is a variation of the conventional boiler and can be confused with this more common type of boiler, so do ask your plumber or heating professional about which system you have if you are in any doubt. Your engineer should come to look at your old boiler and measure up for the job anyway, so this is the time to ask questions or advice on boiler types.
The main difference with the system boiler is that it heats water straight from the water supply, rather than relying on a cold water tank feed from your loft. This makes for more efficient hot water supply and also does away with the need for installation and maintenance of a cold water tank. For this reason, the installation of a system boiler can cost slightly less in terms of labour costs.
Your engineer should be able to provide you with a price comparison and a list of the advantages or disadvantages of all the systems on offer, so that you can choose the right one for you. If you are changing from another type of boiler then there may be additional costs for installation and pipework as well as for remedial work to patch up where a previous boiler may have been situated.
Once you have agreed on a boiler type and price for the job then your engineer will call to remove your old boiler and install the new one. You can expect the whole job to take most of the day, or possibly even longer. So do expect to be without water for much of the day.
Your heating professional will install your system boiler and connect it to the water, gas and heating before testing the whole set up to make sure that it works correctly. They should leave the house tidy once the job is complete, as well as giving you some basic instruction on how the new boiler works.
Ready to get started?