大家好。租客反映灶台(Gas Hob) 经常打不着火。中介的建议是直接换一个。请问大家有经验换hob吗，大概需要花多少钱？这个Hob大概用了12年了，不知道是修还是换，想听听大家的意见。下面是中介的信。
Hope you are well.
Your tenant has reported that the ring burners are not working properly on the hob, Peter went and took a look and each ring will push to light but as soon as you take your hand off the button the flame will go out. In this instance it seems that you are going to need a new hob at Siskin Road. Let me know your thoughts on this.