The furnace drew air from an underground tunnel to beneath the grate where the fuel was placed.
Mining firm Freeport said at least four miners were rescued at its Grasberg mine after an underground tunnel collapsed early on Tuesday.
The spokesman said floodwater had also been found in the underground tunnel that carries the no. 1 train to South Ferry at the tip of Manhattan, one of the low-lying stations about which officials had been most concerned because of the chance for flooding.
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Then, inspired by NYC's High Line, Fletcher Priest won the Green Infrastructure Ideas Competition with his proposal for an underground mushroom tunnel beneath the streets of London.
An effort to send rescuers through the collapsed mine tunnel to attempt an underground rescue was suspended last week, after a new cave-in killed three rescuers and injured six others.
Emergency services in western Poland have rescued 19 miners who were trapped underground when a minor earthquake caused a tunnel to collapse.
At the moment, despite its lamentable performance, the company is being rewarded by John Prescott, the transport minister, for taking two big problems off his hands: the Channel tunnel rail link and parts of the London Underground.
Declared the European Green Capital in 2010, Stockholm is investing in new construction like the City Line tunnel, which will put commuter rail lines underground and double the number of trains able to move through the city.
The tunnel is around 7 miles long and designed especially for high speed, underground transit.
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Engineers who have assessed the project to build deep underground storage facilities feel it would be a bigger construction challenge than that of the channel tunnel, with tunnelling between 200 and 1, 000 metres.
It has a key role in building the Channel Tunnel fast rail link and it is also a leading contender to take over the infrastructure contract for London Underground.
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