A common question when purchasing a new boiler is how long it will take to install. There is no one answer, as it depends on several factors.
The quickest installation is a straight swap, meaning replacing an old boiler with a new one of the same type and in the same location. This involves isolating and draining the system and disconnecting the power before removing the old boiler and fitting a new one. One engineer can do this in less than a day.
When replacing the same type of boiler but in a different location it will take at least a day, perhaps longer.
Changing the boiler type will typically take two to three days as this will also mean altering the plumbing and electrics. If changing from a combi boiler to a system one, a cylinder will need to be fitted. A heat-only boiler will also require a cold water tank and an expansion tank. If switching from a system boiler to a combi one, the unused cylinder may be removed, though it can be left in place.
If changing the fuel type, for instance from an oil fired boiler to a gas boiler, allow two to three days for fitting.
Changing both the type and position of a boiler will take several days, perhaps as long as four.
For boiler installation in Chester, Mold, Oswestry or Wrexham, consult with Xgas who’ll be able to provide an estimate of how long the job will take.
