How can the Grant WinterSOL Kit help poor stratification?

For systems combining a solar thermal system with a heat pump or boiler, a WinterSOL kit from Grant UK can help poor stratification. During days of limited solar gain, the solar thermal system will not always provide enough energy to heat the entire cylinder and it will only heat the upper part. If a heat pump or boiler is used as supplementary energy to heat the hot water, due to the positioning of the primary heat exchanger, it will also only heat the top part of the cylinder (the same applies if you energise the immersion heater). By introducing a de-stratification pump, such as the WinterSOL Kit, it will force the hot and cold water to blend creating warm water, the temperature of which will stabilise all of the cylinder contents. This along with a hot water demand from the boiler or heat pump will allow the temperature within the majority of the cylinder to rise to a useful level.

A de-stratification pump will force the hot and cold water to blend creating warm water, the temperature of which will stabilise all of the cylinder contents