Buyer Beware ! Sitting here in my perfectly cooled office, I find it hard to remember the difficulties Ive had to endure over the last 3 weeks. I purchased a Comfee split air conditioner from this company and it was shipped without gas. The company refused to help or believe me and insisted on speaking to the engineer who commissioned the unit. Unfortunately this friend of mine was unwilling to give his F gas certificate number as he did not want his employer finding out he was doing jobs on the side. So beware, you will have to pay extra for a nitrogen leak test and for filling with R32 refrigerant. Its a shame because the air conditioning machine is very good.