I swore I would never have an avatar. Unfortunately, I couldn't resist this. Worth being reduced to the ranks. A Belgian field kitchen with sentimental value.
"Sometimes things that are not true are included in Wikipedia. While at first glance that may appear like a very great problem for Wikipedia, in reality is it not. In fact, it's a good thing." - Wikipedia.
It seems to be a boiler to produce hot water -as such it could be part of a field kitchen but could also be attached to a field laundry or a bath unit. All of these were unglamorous but vital. Given the squalid conditions at the front it is amazing that none of the armies were decimated by disease (although trench fever - a form of typhus - did pose serious problems in 1918).
It's described as a field kitchen in the caption but, yes, it does look like just a boiler. Purchased with contributions from the citizens of Manchester, many of whom were probably lucky to get a bath once a week in those days.
__________________
"Sometimes things that are not true are included in Wikipedia. While at first glance that may appear like a very great problem for Wikipedia, in reality is it not. In fact, it's a good thing." - Wikipedia.