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 as glass traps more heat. I’ll also make the whole box fit the front windows much more closely. That’ll mean making it longer, potentially doubling it’s length. This box was originally made for the chook run to warm that over Winter but it was too effective so I had to take it down. It is made from scrap and has coir flute as its backing and thin Styrofoam as insulation. I know how well it works and I’ve got much better materials now so it’ll be a real furnace next Winter. I also learned how to improve its heating ability. First, I repositioned the inlet

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The switches are here!

It took a while, but they are here… switching circuits for the rainwater. Once we connect one of the rain tanks to the kitchen and toilet, we can slash our town water even further without the need to bucket the rainwater in. Along with a couple of float switches, there boards will let me wire up circuits that will monitor levels in the tank, toilet cistern and a small reservoir tank that I’ll be putting in for the kitchen. That will keep the small tank and cistern topped up with rainwater, at least through winter. That means a huge reduction in out town water use! Things will be different in the heat of Summer but I’ll work a way around that too. One step at a time.