TEWI is an abbreviation for Total Environmental Warming Impact and is used as a measure to calculate and compare greenhouse gas emissions between varying refrigeration, cooling and heat pump systems. The total impact is calculated over the lifetime of the system and considers direct emissions (from leaks, servicing, decommission of that system) and indirect emissions (emissions associated to running the system inclusive of the energy cost/ electricity required).  TEWI calculations are a key method to ensure investment choices meet clients carbon reduction aspirations.
Contact Climadesign at support@climadesign.co.uk for more information on how we can help you access your systems and environmental impact