I ,ve been using one for4 years, i too had a board go down when the unit was new,but it was replaced without charge or argument, they produce a lot of heat when warmed up(28ft boat), i wouldn,t go for a model with electric option, a friends got one and it,s rubbish on electric, not sure why but it just dosn,t seem to work, touch wood apart from the teething problem it,s run fine....and hasn,t needed a de coke once !, thet,ll run on both gases, put it as far away from were you sleep! you can,t hear them outside, but you can hear the burner if you have a short output duct