<p>The Chamber's environmental controls (including thermostat/sensor control) are inspected before every sitting of the House and are monitored throughout by staff in Engineers' Control using building management systems, including alarms. Maintenance plans are designed</p><p><?notus-xml column=336?></p><p>to minimise the risk of the heating system going wrong. If the hon. Member has concerns about specific issues, the DG, Facilities would be happy to discuss these with her.</p><p>All the plant systems serving the Chamber are regularly maintained to ensure efficiency and cost-effectiveness. The major plant serving the Chamber is being refurbished under the major medium term mechanical and electrical programme.</p>