I also plan to buy one this month, plan to repaint my house exterior...after do some research look like this Malaysia made is the cheapest

http://mypowertools.com.my/product.php?id_product=57

**Specification**
Model HPC6180
Rated Voltage 230~240V AC 50Hz
Input Power 2400W
Max. Pressure 180Bar
Flow Rate 5.5L/min
Include Turbo Cut Nozzle and Multi-Power Nozzle
Warranty 12 months..

180 bar for Rm450...consider cheap + 1 year warranty...anyone here got any experience with this brand? Don't plan to buy the expensive one since after repaint the item will just seat in my store room.

I also google on how to clean old paint from concrete, many suggest to use paint remover.paint on top of old paint, leave it to work for 4-6 hours then use water spray to remove it..more easier