Otago Polytechnic has begun a $1 million project to replace
its "outdated" coal-burning boilers with two wood-chip
boilers, which will heat three-quarters of the institution.
The polytechnic's chief operating officer, Philip Cullen,
said the three 24-year-old Hamilton Heat Pack coal boilers
used to heat the institution breached the Otago Regional
Council's air pollution limits, putting out 77mcg/m3 of PM10
emissions. The legal limit is for PM10 emissions no greater
Mr Cullen said that the polytechnic had chosen to move to
wood-chip boilers because of its commitment to environmental
Moving to wood-chip boilers would reduce the polytechnic's
particulate air pollution, with the two new boilers producing
less than a third of the PM10 particulate emissions
(25mcg/m3) than the old boilers emitted.
The tender for the project was awarded earlier this month to
Living Energy, at a cost of $971,000, with an extra
contingency sum of $100,000. The total budget for the boiler
project is $1.28 million, which also allows for planning and
Mr Cullen said ordering and planning was already under way
for the new boilers and the project was expected to be
completed by late February next year.