Energy Performance Certificates or EPCs are a compulsory requirement for all homes on the property market, this includes rental properties and, by law, a landlord is required to provide his tenants with an EPC when they move into the property in question. As of the 6th of April, new legislation require property owners to have an EPC in place within 7 days of marketing their property. Refrigerant Oil Enhancement has proven to be highly effective, affordable and able to increase efficiency in air conditioning HVAC, chiller and walk in refrigeration units. This efficiency technology requires no new HVAC equipment and in a commercial setting will show a payback ROI within a year. This conservation product is a specifically blended refrigerant oil supplement that has multiple beneficial attributes when added to the refrigerant line of existing HVAC compressors along with the existing refrigerant oil.