Until I moved to Spain I associated Calor Gas heaters with caravans. Caravans at Filey Brigg to be precise. Here, in the countryside at least, everyone has a gas heater to help combat the intense cold in our uninsulated houses. We own three.
The heaters push out around 3kw of heat and one 15€ bottle of gas lasts around 60 hours which makes them a cheaper form of heating than electric. We don't have our bottles delivered though so having to collect them is a bit of a pain.
The other day a friend was talking about having replaced a heater. He feared that it was on the point of blowing up his house. They have a bit of a reputation for doing that. Well either blowing you up or asphyxiating you. It acted as a reminder. I know that the bright orange rubber tubes that connect the gas bottle to the heater have a "sell by" date on them. I checked. Whoops! The oldest one we had said March 2010 and even the most moodern bit of piping (on the gas cooker) was six months out of date. They're now all good till June 2016.
I don't suppose it was much of a threat really. At least that's what I told Maggie.