A roaring noise on the Manhattan fire when lit led us to assume the gas bottle was faulty. So we exchanged it for another bottle. Roaring noise again! A phone call to Dublin (manufacturer's base) where Alan on the other end listened to the sound and pronounced a fault requiring a part to be sent from Eire which would take some time to arrive (thank you Brexiteers!!!) The fire looks good, feels solid and threw out impressive heat but the noise was worrying. Also your website ought to mention that butane bottles are hard to get - you have to be in possession of an empty bottle to acquire a full one. One supplier suggested we look for an empty on ebay. Luckily a local farmer had one in his barn he could let us have. Positives? Prompt delivery and speedy return of the phone call. Negatives as above - plus will we be able to fit the part easily when it does arrive - and will it solve the problem?