The vacuum insulates heat of water, the water in space (11) namely the water in solar hot water cylinder is heated under the irradiating and heating of solar light and the insulating of vacuum.

真空对水保温，在太阳光的照射加热下和真空的保温下，空间(11)内的水、也就是高温太阳能热水筒内的水就热起来了。

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Solar panels are compatible with most hot water systems, although you may need a cylinder big enough to hold two days' worth of hot water.

太阳能电池板与大多数热水系统兼容，虽然你可能需要一个圆柱体大足以容纳两天的热水价值。

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Thereby the purpose of the water in high-temperature reflecting hot water cylinder namely in space is heated by solar light irradiating.

从而达到了高温太阳能热水筒内的水、也就是空间内的水能被太阳光晒热的、空间内的水能多吸收热量的和水温较均匀的目的。

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If you are living on means tested benefits AND you live in the hardest-to-heat homes you may be eligible for a free new central heating boiler, insulation for a hot water cylinder, loft, cavity wall and solid wall insulation, draught proofing for doors and windows or renewable energy technologies such as solar panels.

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