Bernd 11/09/2018 (Fri) 01:43:49 No.20496 del
>>20483
If you get enough sunny weather to seriously consider those solar heating devices (or systems) and if the goal is just to shrink the electricity bill, then you should also seriously consider photovoltaic panels. Due to 'green' legislation passed in recent years in parts of USA and Europe, the cost-efficiency of solar energy can be already attractive even for small residential installations.