01-16-20, 01:17 AM | #1 |
Lurking Renovator
Join Date: Dec 2009
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geothermal water temp minimum
Hi
I have been watching for a while. I am thinking of making a heat exchanger. I would like to start small and move on from there. I would like to heat my 3 ft crawl space. approx 600 square feet. our house is on an alluvial fan with high water table and natural flow down hill. I am wondering what is the lowest temp that would be reasonable for this to work. I plan on digging a hole and placing a thermometer in the water to check the temp. I can place pipes uphill and use it as a horizontal well to provide a water source. my theory is to direct the water from an up hill source to a storage unit with 2 inch pipe.(approx 150 ft run) build the heat exchanger to use the storage as a source. this way I could control sediment in the supply. or I could just make trenches near the house. typically if I dig a hole 1 ft deep, water fills the hole half way. I have a mini excavator and could make trenches 4 ft deep and 2 ft wide. average low temp is minus 2 c. but it can drop to -20 in an extreme typically for less than a week It appears to me the most important thing is to know if the water has enough temp to work. any info is appreciated |
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