RewardsSoftline Concord Slimline Concept Softline Concord Slimline Concept Size (mm) Output Type Points Qty H1800 × L320 872W / 2975BTU SINGLE 387 -+ H1800 × L440 1199W / 4091BTU SINGLE 483 -+ H1800 × L520 1417W / 4835BTU SINGLE 526 -+ H1800 × L640 1744W / 5951BTU SINGLE 627 -+