Suitable for renovation projects and new build, our Compress 5800i AW monobloc outdoor unit uses future-proof R290 refrigerant and houses all refrigeration circuit components in compact, easy to fit and maintain unit. Operating at an ErP class of A+++ for heating (at 35 degrees) and at A for hot water performance. The Compress 5800 range is highly efficient, ultra-quiet and easy to install, operate and maintain.