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for the designation of Smoke Control Areas) those furnaces installed
after 31st December, 1956, which are equipped with mechanical stoking
apparatus but do not burn pulverised fuel, as long as they are operated
and maintained so as to minimise the emission of smoke and burn the fuel
for which they were designed.
Two proprietary types of appliances are granted similar exemption
under the Order, namely the solid fuel "Ductair" unit, and the "Fulgora"
slow combustion stove (used for burning wood shavings, etc.).
Mechanically stoked furnaces capable of working as smokelessly as
those exempted by the Order, but which were installed before
31st December, 1956, can also be exempted individually on similar
conditions.
London Building (Constructional) Amending Bvelaw, 1960
During 1960 the London County Council bvelaw under the London
Building Act (Amendment) Act, 1935, and the Clean Air Act, 1956, came
into operation and requires that every new building shall be provided
with either such appliances for heating or cooking as are suitably designed
for burning gas, electricity, coke, or anthracite, or appliances of a
description exempted by an Order in force under the Clean Air Act.