I want to get a bissel little green machine. Should I get the proheat (heats the water) or just the regular non-heated version? Ive been reading the reveiws and it seems numerous people have been having their bissel pro heats fail due to the brush getting clogged up. Any input? Also i have seen the proheat on the target,lowes, hd and other websites but can not find the non heated version on any. does any one know where to get the non heated version incase i want that one ? thanks