Replacing Boiler - how will it affect shower pressure?

[tigerstripes]

Hoping someone can help me out with this.

We'd like to replace our Vokera 20-80 rs Flowmatic, but we will be moving on from our flat (2 bed/1 bath) in around 3 years, so we're looking to keep costs to a minimum.

We have a mixer shower which has fantastic pressure to it, and we don't want to lose that! We have been quoted a good price for installing a Vokera Compact 25He - will that give us the same shower pressure?

We have been quoted £200 more to install a 29He, but we don't want to spend the extra cash if we don't have to.

Sorry if this is a stupid question - thanks in advance for any help.

 

[Boilerman2]

It wont effect your Pressure, but the 29 would certainly improve the temperature at high flow rates, however as you will be moving on, the boiler you propose shouldn't be any worse than your current flowmatic

 

[bengasman]

It will be well worth it to spend the extra £200, or even more, and get a proper brand. New vokera's are pants.