This was initially done by fitting pre-group six wheel or short bogie full brakes with a stove and branding them "STOVE". Although many of these converted stoves saw service well into B.R. days they were beginning to get a bit obsolete in 1932 and so the six wheel STOVE R brakes were built.
BR(S) had a few on Western Division workings, with an example of a Stove R seen here at the Vauxhall Milk Depot.
Unfortunately the Dapol Stove R was met with a withering barrage of criticism, mostly from folk copying each other's comments and usually utterly incapable in actually making anything as good. I owned an example and was very pleased with it, now I have found another.