Solar window heater update


I’ve been fixing the window box heater. It’s been working OK over winter but not to its maximum. I’ll rebuild it over Summer and add a temperature control so that it only comes on when the air temperature in the box is over 20°C. I’ll use thick glass as the cover instead of thin perspex…

Greenhouse/solar update


It may look like a rat’s nest of wiring, but let me assure you that the greenhouse is now connected to the 12V system, so the pump is running on sunshine! Greenhouses are a great way to experiment with different types of solar energy, however it is captured. The bad news is that the big…

Our first (proper) solar panels.


A couple of 50W solar panels and a regulator, secondhand through the good graces of a friend. Its charging an old motorcycle battery at between 15 and 19V depending on the mood of the sun. Soon, I will have to mount it to the house and get a really good battery.