If you religisoulsly (sp?) use a blower for at least 5 min before
starting a gas engine in order to remove any fumes from the bilge or
engine compartment, no one on board smokes and your galley is placed
well away from the engine compartment you will probably never have a
problem. The main thing is there will always be the risk of a
horrendous explosion/fire with gas that just does not exist with a
deisel engine. If the boat you are falling in love with has a gas
engine and you can tolerate the risk, I'd say go for it but I'd look
mighty hard for something else with deisel power.