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I saw a few people ask what other uses might there be for Potassium Hydroxide (KOH). It is the electrolyte of choice for Nickel-Iron batteries. NiFe batteries are some fascinating old-school technology with some real-world applications and are definitely accessible to the DIY community. https://en.wikipedia.org/wiki/Nickel%E2%80%93iron_battery
Hi Shipped,The container is insulated with 2" foamboard panels stuck to the walls with big flat magnets and covered with a dual-sided reflective material (Reflectix). We are growing food inside the container and are running about 1kw of T5 lighting at all times. The lighting generates heat, as does the small 200W heater that we run. On a cold, overcast day (e.g. 20F) the container sits at about 55-60F. On a cold, sunny day it sits at about 65-75F. On a cool, sunny day (40F outside) the container easily tops 85F.We are currently finishing the design of our production model and will start producing and selling them in April. The new models will have spray-foam insulation with drywall and FRP paneling. I'll keep you in mind. Do you have any containers near Columbus, Ohio?
That's good news. Thanks for your input!
I agree as well. Unfortunately, just about everything usable as glazing is UV protected. The only alternatives I found were some acrylic sheets that were about 6 times more expensive than the roofing panels that we used. Do you have any suggestions?
I'm convinced. Gotta go find me some lop-eared rabbits!
Great question! It's completely dependent upon available sunlight. Two days ago was clear and sunny but the outside air temp was about 12F here in central Ohio. The temperature inside the hot air duct was 128F. We use a small fan to help push air through the system when it's sunny. The air coming out of the unit, about 8" from the hot air duct was just over 90F.On a 100% overcast day we get essentially no temperature lift from the unit.
Solar Thermal Air Heater (o...View Instructable »
Tripod Laptop Stand
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