Hi Tim, Can quote me Mitsubisi Starmex and Panasonic both system 3 for 2 bedroom and 1 living room. I dun care about the vouchers but I can't take leakage. Therefore upgrade to 1/2 inch armaflex insulation, G23 copper pipe, 16mm drainage pipe, 2 times installation. Pls send me at timme81@msn.com thanks.