Solar Furnace air temp.
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Uploader Comments (jab0805)
All Comments (29)
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MAKE SURE THAT BATTERY BOX IS VENTED OR YOU COULD HAVE A SERIOUS EXPLOSION.
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if you want to save money, get rid of that dog
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@Icabad You can find snap disc. thermostats in a wide variety of temperature settings. Some open on rise, others close on rise. I found that the heater retained very little residual heat when no longer in direct sunlight. So the decline is pretty rapid. 110/90 works best for my situation.
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@jab0805 i'm curious why 90 and not, say, 75 degrees. Wouldn't that be over what you'd want your interior space to be? Or is the difference just to account for loss?
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@Icabad I have a snap disc. thermometer inline with the fans. The circuit completes when the temp. reaches 110 degrees. The circuit is broken when it cools below 90. I also have an over-ride manual switch in case it gets a little too warm inside. It's a regular switch that you'd use for a light. Good question. Hope I helped.
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Do you have a switch of some sort on there, or do you turn it off and on?
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Great series of videos. What was your total cost to build this? I'm looking at making one similar before winter.
earzcd 6 months ago
@earzcd I had some of the materials already, so it only cost me around 100 bucks. If you where to build one now without having any of the materials I'd say you're looking at a couple hundred dollars if not a little more. I built mine after modernblacksmith here on youtube. I basically followed his design to a T. If you want to build one on the cheap, you should check out richallenmusic here on youtube also. He does a fantastic job. Good luck and I hope to see yours posted.
jab0805 6 months ago
are there any that are adjustable? Or do you have to buy them with preset temps?
I was thinking that one issue that comes up is having a door that opens or closes when the temperature drops. I know there's a kind of metal that retains certain shapes - so one shape would have the door open at a certain temp, and another the door shut- of course this might not work for seasonality...
Icabad 1 year ago
@Icabad Yes there are adjustable snap disc. They are a little more costly and you could actually bypass the snap disc. and just wire up a regular thermostat to come on at what ever setting you desire. The snap disc. I use cost me 10 bucks.
jab0805 1 year ago