In message , Dani
m writes
replying to The Natural Philosopher, Dani wrote:
Did you fill the boiler with sand ?

Well, that was 16 years ago, but yes, when my Stanley stove/boiler was
disconnected from the water, I filled the water tank with dry sand, and
it was fine. The stove part was used all year, only closing down
briefly in the summer for annual cleaning.
--
Graeme