Ventilating the Commons, Heating the Lords, 1701–1834

In 1833, the Commons chamber was described as a ‘noxious vapour‐bath’, while the Lords deemed the insufferable heat and toxic smoke in its House as injurious to health. This situation was not new, as for more than a century both Houses had been battling with officialdom and technology to improve their working conditions. In their continuing quest for effective heating and ventilation they had drawn in many respected men of science and commerce as well as entrepreneurs and showmen of varying abilities, to little avail. Many machines were tried, Desaguliers's ventilating wheel alone achieving modest success. A notable institution arising from all these experiments was the ventilator in the Commons’ roof, enabling ladies, barred from the chamber, to witness debates, albeit in considerable discomfort. After the 1834 fire, parliamentarians renewed their ventilating mission in their temporary chambers, before projecting their cumulative experience and opinions onto the far larger canvas of the new Victorian Palace of Westminster.