economiser

plural economisers

1. UKalternativeAlternative form of economizer.

   1 more example

   These locomotives have now had their economisers removed, while retaining the boilers of smaller-than-standard diameter [...]. Trouble, however, is being experienced owing to the fact that, without the retarding and lowering effect of the economiser on the velocity and temperature respectively of the firebox gases, severe burning of the superheater elements is occurring.

   1962 April, P. Ransome-Wallis, “A new variant of the Crosti boiler”, in Modern Railways, page 272