We've discontinued some of our cylinder sizes, including the Cube. Some retailers may still have limited stock of this cylinder size, so please call to check before travelling. If you purchased a Cube Heater between 1st January 2021 and 1st February 2023 and you’d prefer a refund, please fill out the claim form below and our team will be in touch. You’ll need your original proof of purchase to be eligible for a refund.