Renewable Energy Systems from Solar Essence: solar photovoltaic pv, air & ground source heat pump, solar thermal heating, domestic wind turbine, rainwater harvesting, underfloor heating uk
R - retro fit systems
Manufactured exclusively by solaressence® the retro fit coil fits into your existing
cylinder through where your immersion heater currently is located.
This solution have been designed to provide a budget option for anyone wanting to
have all the benefits of solar heating with the minimal cost.
Substantial savings on your hot water costs can be made because the energy you receive
from the solar system displaces the energy your boiler would otherwise have had to
produce. Plus you have the ability to upgrade at any time in the future to either
a twin coil or a dual system.
how it works
The solar collectors u begin to rise in temperature. The temperature differential controller SE3 v monitors the difference between the collector and your cylinder with highly accurate temperature sensors y . When the temperature of the collectors rises more then 6-8 degrees above that of the water cylinder the controller turns the solar pump w on. This creates circulation within the sealed solar circuit z which is made of pre-insulated stainless steel duo-flex pipe containing tyfocor (solar grade anti-freeze) heat transfer fluid. Your boiler x should still be on similar settings as before & will still monitor the temperature in your cylinder, which according to your timing settings will boost the cylinder temperature if required. The need for your boiler to boost the cylinder temperature will depend on the time of the year, the amount of solar availability, and your hot water needs. Sometimes it will need to boost, sometimes it will not. Again it must be remembered that if your boiler does need to boost the temperature, it is just that, a boost. The energy you receive from the solar system displaces the energy your boiler would otherwise have had to produce whether your boiler still has to fire up to boost or not.
This transfer of heat from the solar circuit to the cylinder has the effect of taking the heat out of the collectors u and their temperature drops again. When their temperature has dropped to only 2 degrees above the water cylinder the temperature differential controller SE3 v turns off your solar pump w. The whole process then simply starts again. So in essence the system transfers the heat from the collectors to your cylinder in many short bursts throughout the day.
