posted 9 years ago
I have a Sun Oven brand solar oven, and I've had it for 15 years. It's in as good a shape as it was new and I use it regularly. It was hard to pay that much, but amortized over even 5-8 years it's not a lot of money. It works in 9 out of 12 months for me, more on the occasional sunny winter day where it's protected.
I do have to plan on 4-6 hours for cooking time, even when it's hot because if I don't keep turning it into the sun, it will drop in temp and take time to get back up.
I do keep it out of the wind because the silver reflectors can really catch a breeze and I don't want it to go over. It does help to have it level, especially since I have to spin it into the sun about every 20 mins or so. but it easily gets up to 300 F and (350 F in summer) when it is angled correctly, and the angle needs to be checked with just stepping back and eyeballing if it's really directly facing into the sun.
An important distinction: Permaculture is not the same kind of gardening as organic gardening.
Mediterranean climate hugel trenches, fabuluous clay soil high in nutrients, self-watering containers with hugel layers, keyhole composting with low hugel raised beds, thick Back to Eden Wood chips mulch (distinguished from Bark chips), using as many native plants as possible....all drought tolerant.