Solutions

Every building offers numerous opportunities for conserving energy and reducing the use of natural resources. However most of these energy saving measures involve extensive remodeling / rewiring and are not easy to implement in existing homes.

With you can increase energy efficiency, save money and do your bit for a greener world without expensive remodeling or rewiring.

Here are some examples that show how you can immediately start saving energy at home:

Hot water supply

New and old homes both waste large amounts of energy when hot water is supplied to the whole house. In order for the hot water to be readily available throughout the house, a circulation pump distributes hot water through pipes either continuously or on a timed basis (e.g. 14 hours a day). This results in a significant, and completely unnecessary, waste of energy. It is possible, however, to save about 30% of the hot water bill by starting the circulation pump only on demand, i.e. at the moment hot water is needed at a certain tap.

offers exactly this solution which can be retrofitted in existing homes. sensors, connected to standard switches near the hot water taps, start the circulation pump only on demand. A actuator with a timer function lets the circulation pump run just long enough to provide hot water at all the taps--typically less than a minute. Approx. 30-40s after pushing the switch, hot water is available at the taps -- an easy way to save money and be eco friendly at the same time.

List of required SIENNA® components:

SM1L+R connected to wall-switch in the bathroom / kitchen -- the indicator lamp is on when the circulation pump is running.
SAM1LT to control the circulation pump.