Essentially, it allows the water heater to get much hotter during times when solar energy is available, and lets it drop to lower values before running the heater on utility electricity during ...

Taking a hot shower can literally mean pouring money down the drain. The average American household spends almost $300 pear year to heat water. If you spend a little extra time in the shower, that ...

An international research team has developed a novel solar-air dual-source heat pump (SAHP) for water heating applications. The system's innovation lies in using a blower fan that enables forced ...

Whether new build or retrofit, the application of solar thermal pre-heat is a well-established means of reducing the energy demands of domestic hot water (DHW) applications, offsetting operational ...

Nexol Photovolthermic AG has developed a new hybrid solar water heater for residential use, offering 1.5 kW of heating output and sizes ranging from 80 to 300 liters.