r/geothermal is a subreddit with 9k members. The most common kinds of discussions are news and solution requests, and the community frequently discusses geothermal, waterfurnace, energy, drilling, and heat pump.
A subreddit focused on both geothermal and geoexchange systems, primarily for residential heating and cooling (e.g. ground source heat pumps). Larger projects and other methods of using the earth for heat exchange are welcome, though less likely to spark broader discussion. All civil discussions aren't just welcome but wanted.
Popular Themes in r/geothermal
#1
News
: "New map shows vast potential for geothermal energy beneath entire US"
10 posts
#2
Solution Requests
: "From a legislative standpoint, what can be done to drive residential Geothermal as a solid option for lower income households as a way to combat climbing energy prices?"
9 posts
#3
Advice Requests
: "Update: I hit some very dense rock formations and somehow broke the Tecumseh motor. Upgraded to a predator motor. Currently at 45 feet"
8 posts
#4
Pain & Anger
: "Geothermal System not performing well on cold days"
2 posts
#5
Money Talk
: "Hardest question to answer - how much does it cost?"
2 posts
#6
Self-Promotion
: "GeoBridge - A government-backed portal for centralizing geothermal knowledge from across the internet"
1 post
Popular Topics in r/geothermal
#1
Geothermal
: "Geothermal won't make your house explode -- unlike gas service...."
191 posts
#2
Waterfurnace
: "NY-GEO, IGSHPA YouTube Videos are a great source of information about Geothermal Heat Pumps!"
39 posts
#3
Energy
: "Geothermal Startup Uses Refrigerants, Not Water, to Make Energy"
26 posts
#4
Drilling
: "Drilling my wells today."
17 posts
#5
Heat Pump
: "NY-GEO, IGSHPA YouTube Videos are a great source of information about Geothermal Heat Pumps!"
15 posts
#6
System
: "If you're considering purchasing a new System, be wary of Dandelion Energy."
14 posts
#7
Hvac
: "Until help"
11 posts
#8
Cooling
10 posts
#9
Heat
: "Geothermal Startup Uses Refrigerants, Not Water, to Make Energy"
8 posts
#10
Loop
7 posts
Member Growth in r/geothermal
Yearly
+2k members(26.0%)
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Last updated: June 17, 2026