We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember John Rumm
saying something like:

===Halogen heater===
A more modern version of a bar fire, these use a red halogen lamp in
place of the bare bar. The lamp is insulated rather than bare & live.
The heat density isn't as high (400w per bar is typical), reducing the
fire risk.

Might be worth pointing out that these are effective at heating people
rather than rooms - hence less power can be used to keep you feeling
warm when in a cold environment. Handy for workshops, sheds etc.

Can also be used as patio heaters - since they will radiate heat at
people and are not affected by draughts etc.

Ditto all that for IR lamps, missed out entirely.