Loop temps and BTU capacity?

The master plan · 01-12-12, 03:30 AM

Well, I now have both of my underground loops up and running. Just testing for now and purging the air out of the lines. It looks ghetto but, hey its just a test rig right now. Loops run into the bucket to be pumped back into the ground again.

Its been a really mild winter here, so I'm sure the ground isn't frozen very deep. The MNDOT has a website that lists the depth of frost and it shows about 18" now.

My loops are 2 x 600ft of 3/4" slinky coil about 6ft under the ground and run under the garage slab and driveway. Right now I get about 42F...how does that fair?

Short term use will be as an "air conditioner" during the summer and later maybe add a heat pump to it if I can determine the loops are sized big enough. I plan to run the loop water threw a heating coil. Its rated at 120,000BTU with 180 water. I figure if the water temp is low enough this summer I can use a fan to blow across the coil to cool my garage or home this next summer.

01-12-12, 03:30 AM	#1
The master plan Helper EcoRenovator Join Date: Oct 2010 Location: Central MN Posts: 50 Thanks: 0 Thanked 4 Times in 4 Posts	Loop temps and BTU capacity? Well, I now have both of my underground loops up and running. Just testing for now and purging the air out of the lines. It looks ghetto but, hey its just a test rig right now. Loops run into the bucket to be pumped back into the ground again. Its been a really mild winter here, so I'm sure the ground isn't frozen very deep. The MNDOT has a website that lists the depth of frost and it shows about 18" now. My loops are 2 x 600ft of 3/4" slinky coil about 6ft under the ground and run under the garage slab and driveway. Right now I get about 42F...how does that fair? Short term use will be as an "air conditioner" during the summer and later maybe add a heat pump to it if I can determine the loops are sized big enough. I plan to run the loop water threw a heating coil. Its rated at 120,000BTU with 180 water. I figure if the water temp is low enough this summer I can use a fan to blow across the coil to cool my garage or home this next summer.