We all know the fact that boiler installation cost would be high.
Modern systems are quite expensive as they are quite complex electronics.
But there is an advantage if you switch to the modern ones leaving aside the old models.
New ones are energy efficient.
So, if you can bear the boiler installation cost, you can save a lot in the future.
There are other factors which help you save money.
Let us take a look at them:

1. The size of the property: The cost of installation depends on this factor also.
   If your house is a big mansion with lots of rooms to be heated, then it means that you should have more number of radiators to be installed.
   This would increase the installation charges.
   If you have any kind of future plans to expand or extend your building then it is better to install a boiler which can take care of more number of rooms.
   
2. Lack of infrastructure: If you don't have the pipe work or the radiators which are necessary for the installation of the new boiler then this would also increase the boiler installation cost.
   
3. Model of the boiler: If you have opted for a model which costs more for the installation then also you will have to shell out more.
   The costs vary from one model to another.
   But here I would like to add that it is better to go for an expensive boiler as it will cost you less later on while maintaining it.
   Make sure that you choose models of higher efficiency though they cost you a bit more.
   

This way, there are several factors which increase the boiler installation cost and it is better to look at all of them and then take a decision depending upon your affordability.