When starting from scratch you will first have to pay a hire charge of £30 along with the refill price of the cylinder you want to purchase.For example if you wanted to purchase a 6kg Propane cylinder, the total cost first time around would be £51.50. (30.00 + 21.50) From then on you would ONLY pay the refill charge. If at any time you dont need the cylinder any more then it can be returned to the dealer you bought it from and a percentage of the hire charge will be refunded but you MUST have the original paperwork you were given when you purcahsed the cylinder.