In new residential areas, coal heating had been replaced by natural gas.

在新住宅区，天然气所取代燃煤供暖。

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The automatic control level and heat efficient for coal heating boiler is lower for most of domestic boiler so far.

目前国内大部分燃煤采暖用锅炉房自动化控制水平普遍较低，热效率也不高。

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In view of the problem of slag bonding of pulverized coal heating furnace, the paper analyzed the formation of slag deposits and discussed the measure of preventing and reducing slag deposits.

针对粉煤炉的结渣问题，分析了积渣的形成，探讨了预防和减少积渣的措施。

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Recent industrial action by lorry drivers meant petrol stations ran dry, supermarkets ran low on stock, and even hospitals had to make alternative arrangements for deliveries of heating coal.

BBC: Strikes keep pounding South Africa's economy

The concept of heating underground coal to a combustion point may lead one to recall Centralia, PA, an abandoned town in Pennsylvania sitting on a coal seam which has been burning for 50 years, but the UCG controlled process makes that outcome highly unlikely.

FORBES: Underground Coal Gasification: A Trend Worth Watching

But in many Asian and African countries, the indoor use of coal and biomass fuels for cooking and heating is a hidden killer.

CNN: Air pollution kills, but deaths can be prevented