My experience with IND-X engines leads me to
believe it is a steam-hog. Either that or my
heater is only sort of working, but I think it
would be an all-or-nothing heater. I'm thinking
of putting a new electrical heating system with
more ooomph in place - the boiler is heavy-duty
strong and can take it (save the working original
heater, of course). But, I've a couple of projects
ahead of that so...
Good Luck,
Wayne