David Hi as Alan remarked earlier , a cold CSR that must be a first, although mine is flat dash not a swoopy dash, anything below transmission tunnel is akin to a Furnace, obviously once above Tunnel Level heat is just sucked out, what temp does your water run at , mine rarely below 90c , heat radiation from cockpit sides is generally enough to keep lower half of body warm in winter, and with side screens and with or without half hood, extra heat from fanned air is plenty , sorry doesn't help you much but just another comparison , and we do drive n the winter