On Sun, 12 Jul 2015 12:43:31 +0100, nemo wrote:

[1] Do all oil boilers smell so strongly of diesel?

Diesel? Not many oil boilers about that run on diesel, most run on
kerosene. Different smell but still quite niffy. Niether are overly
volatile so small spills or drips when servicing hang about. I'd be
more worried about smelling the flue gases, very different odour.

--
Cheers
Dave.