Boiler question

Thomas_Holding

I have a boiler question.

I have a 5 bed semi, it was a 3 bed but I have a loft conversion.

It is smaller than it sounds though.

The boiler is 13+ years old and takes for ever to heat water and repairs have had no effect on this.

I looked at these websites

Heattable, Iheat, glowgreen and Eon

Heattable, Iheat both recommended Viessmann Vitodens 100-W 35kW for about £2400

Eon Worcester Greenstar 30i (Combination) 2898

All of these had a 10 year warranty

Glowgreenltd  Worcester Bosch or Vaillant boiler 2,210 and 12 year warranty.

My question is - has anyone had any good or bad experience with any of these?