New England Ground Temperatures

hikerjohnson · 07-23-13, 11:10 AM

Hi folks,

Looking for ground temperatures for sizing heat extraction field in Southern Maine/Southern NH.

I have searched pretty extensively, and I am sure the information is out there somewhere, but my google-fu is weak, it seems.

Can anyone point me in the right direction? I would rather not have to embark on a year-long soil monitoring odyssey...

Thanks, hikerjohnson

stevehull · 07-23-13, 11:50 AM

Here is a link to a map that I often use:

Geothermal Heating Contractor for Massachusetts and surrounding area

You answer is about 48 F.

Steve

NeilBlanchard · 07-23-13, 06:27 PM

I'm no expert, but that sounds too low to me. I thought it was about 54F below 5 feet?

hikerjohnson · 07-24-13, 06:41 AM

I'm inclined to agree with you, and it just occured to me that I have a shallow well, about 20 feet deep - I can just take the temp of my incoming water, that should tell me what the ground temp is for all practical purposes!

07-23-13, 11:10 AM	#1
hikerjohnson Submarine Renovator Join Date: Jul 2013 Location: Southern Maine Posts: 35 Thanks: 4 Thanked 5 Times in 5 Posts	New England Ground Temperatures Hi folks, Looking for ground temperatures for sizing heat extraction field in Southern Maine/Southern NH. I have searched pretty extensively, and I am sure the information is out there somewhere, but my google-fu is weak, it seems. Can anyone point me in the right direction? I would rather not have to embark on a year-long soil monitoring odyssey... Thanks, hikerjohnson

07-23-13, 11:50 AM	#2
stevehull Steve Hull Join Date: Dec 2012 Location: hilly, tree covered Arcadia, OK USA Posts: 826 Thanks: 241 Thanked 165 Times in 123 Posts	Here is a link to a map that I often use: Geothermal Heating Contractor for Massachusetts and surrounding area You answer is about 48 F. Steve __________________ consulting on geothermal heating/cooling & rational energy use since 1990

07-23-13, 06:27 PM	#3
NeilBlanchard Journeyman EcoRenovator Join Date: Dec 2009 Location: Maynard, MA Eaarth Posts: 383 Thanks: 78 Thanked 39 Times in 32 Posts	I'm no expert, but that sounds too low to me. I thought it was about 54F below 5 feet? Last edited by NeilBlanchard; 07-24-13 at 09:22 PM.. Reason: typo

07-24-13, 06:41 AM	#4
hikerjohnson Submarine Renovator Join Date: Jul 2013 Location: Southern Maine Posts: 35 Thanks: 4 Thanked 5 Times in 5 Posts	I'm inclined to agree with you, and it just occured to me that I have a shallow well, about 20 feet deep - I can just take the temp of my incoming water, that should tell me what the ground temp is for all practical purposes!