JJS,
During a sunny day the temp in the greenhouse can reach over 100 degrees even when below freezing outside. I have to vent or the heat would kill the plants.
Yeah, so I don’t have an unlimited budget. I live 45 degrees North on a city lot 60 wide by 150 feet deep. The house is 138 years old with a 12-12 pitch and has three gables so there isn’t much for roof space that faces south. The building is set fairly far forward on the property so given the zoning set-back requirements there isn’t much room in front of the house to take advantage of the southern exposure. The greenhouse is far back on the property and is just at the edge of the shadow line from the house on the shortest day of the year.
I do not have an ideal location, but make due with what I have. To the east the neighbors have a row of tall pine trees that block the sun until 10:30 in the morning and to the west there is a tall house set fairly close to the property line that blocks the sun past 3:00 PM. So I’ve got a short window of exposure to work with. As we get quite a bit of snow during the winter the greenhouse has an insulated hip wall two feet tall and it is in front and to the south where the heat sink is buried.
The idea was to store as much of the heat during the day as I can and release it back into the greenhouse during the night.
I asked about your demon gate because the description wiki provided sounded similar to the setup of the two spaces I am working with abstractly, the space of the heat sink and the space in the greenhouse. I thought a device that would control the flow of heat from one space to the other sounded sort of similar to the gate keeper in the thought experiment. You said you created the gate keeper for real and I had thought it might have an application, to “intelligently” transfer the heat from one space to the other.
The rest of the information you’ve provided is fairly straight forward and common to anyone who has spent any time with a project. There are successful greenhouses already but they have a more optimum location and conditions then I do. The original design was to take advantage of geothermal but when digging down to below the frost line for the footings the hole filled up with water because the sunniest part of the property also happens to be the lowest elevation of the property, so a bermed greenhouse wouldn’t work, cause each spring it would turn into a bermed swimming pool. If the buried heat trap gets wet, no big deal. Granted the heat sink likely isn’t large enough to store enough heat to get the greenhouse through the night. I didn’t calculate the size needed as I was just sort of tinkering around.
When we replaced the windows on our house I had all these glass panels that I didn’t want to end up in a dump, just yet. Like I said the whole project is being done on the cheap, I’d have no problems if I’d have paid for insulated poly-carbonate panels. That would help on the heat loss side of the equation.
But enough of distracting the conversation regarding free energy machines. It’s a gas to see people hoax a demonstration by hiding batteries in their supposed free energy machines or inside the electric motor housing itself. It’s almost like trying to figure out how a magic illusion is done.


