Why is our gas grill so hard to light?—Larry R., Tallahassee, Florida. First, find out whether it’s a gas-flow problem or a spark problem. Try to light the gas as you would normally, but ...

A case in point; the humble gas regulator. It’s in equipment all around us, from a propane grill to welding gear. It’s a sealed unit — have you ever seen the inside, to know how it really works?

Any such regulators should be replaced as soon as possible. One should also check that regulators installed on domestic appliances are suitable for LPG, the type of gas supplied in Malta and not ...