We recently purchased a Belling range cooker with an LPG hob & electric oven, we already had all the LPG pipe work in the house from a previous cooker that was installed here, however when we came to fit it we discovered that the fitting to connect the hose to was completely different from what was already installed (in fairness the previous cooker was totally ancient), we purchased the correct fitting (alledgedly) from B&Q but on getting it home & connecting it we discovered that when the bayonett on the hose was plugged into this it was quite loose, i cant see that this is normal, i would have expected quite a tight fit on any gas fittings. Is this normal, i dont particually fancy blowing my house or the kids up, but i dont want to call someone out & look a total numpty if its perfectly normal, obviously if its not then i will get someone out to look at it. Any helpfull advice is greatly appreciated.