"Heat pump water heaters are more costly to buy and install than other models," Russum said ... to ensure adequate airflow and periodically checking the condensate drain to ensure it is not blocked," ...

Find out more about solar water heating. Alternatively, if you have an immersion heater and solar panels or a wind turbine generating electricity, you can divert any excess to your immersion heater.

All of which is to say, "you can get up to 500% efficiency with a heat pump water heater," Rigney said. That means a lower ...

Where do we go from here? The government must try to curtail demand to reduce new-generation requirements and other necessary ...