The heating is on a time switch.

暖气靠定时开关自动供热。

《牛津词典》

Ukraine said it would switch heating to fuel oil as other European countries began a desperate search for alternative supplies, with Turkey turning to Iran.

乌克兰宣布，转用燃油供热，因为欧洲其他国家已开始有点不顾一切地搜寻可替代的供应商，从土耳其供应转向从伊朗供应。

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Under the new rule, by 2015, existing boilers must switch from No. 6 oil to a low-sulfur version of the No. 4 heating oil or to an equivalent cleaner fuel.

按照这项新法规，截止2015年，现存锅炉必须由6号燃料油换成4号低硫型燃料油或与之相当的较为清洁的燃料。

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Much of the avoided energy consumption will come from the switch to carbon-neutral district heating (rural households will switch from oil, natural gas, and electric heating to heat pumps and biomass burners).

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If you get within a certain number of miles from home, your oven might start heating up, or your humidifier would switch on.

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We are wasting millions, contributing more to global warming than industry, letting pensioners get cold despite free central heating systems they can't afford to switch on, and letting kids get asthma in damp cold bedrooms and overheated classrooms.

BBC: The ?1,000-a-year heating bill is here.