April 6, 2025

42 thoughts on “Is a Geothermal Heat Pump Worth It? My Net Zero Home

  1. How come we don`t have the option to convert geothermal energy to electricity? Like for example, if we drill down to earth to like 300-400 meters maybe we could reach a temperature to have to water down boiled 🙂 okay maybe to 1000 meters then and somehow with the generators inside the pipes could be something that would provide us with energy and free heat around the house. Like sending a device down there that is capable of harvesting ground water and converting it to heat and steam that could rotate turbines an send electricity up to the house, somehow.

  2. And there is geo system just like that for 50% less a study was done 80% of mini splits ac heat pumps all use same stuff on inside rest charge u 50% more for .50cent sticker with different number

  3. All this tech is cool and all, but couldn't you have saved a bunch of money and energy by having part of your house underground? Like a basement that you could circulate air to and from?

  4. I have a geo system since 2007 in Madrid- Spain. The system has a 200 m borehole and the house underfloor heating and cooling. To avoid condensation in the summer the system provides one temperature to the floor and a lower to fancoils. The excess heat is used for hot water or the swimming pool in the beginning and end of the summer to prolong the pool season. The Thermia heat pump has also super heater so the system provides hot water summer and winter. Drilling in Spain is not as expensive as in this video. The 200 meter borehole cost 9000 USD. The house is 350 m2 and the total investment with underfloor, fancoils, Thermia heat pump, 300 liters waters tank and heating of the pool was about 60.000 USD. The alternative cost of gas boiler, air conditioning, underfloor heating and hot water was 40.000 USD. I save 4.000 USD a year so the payback was made after 5 years and I get a warm pool included.

  5. Matt there is a small problem with one of your comparisons. You took the 30% federal credit on the Geothermal heat pump, but you didn't take the same 30% federal credit for the ordinary air source heat pump. When performing your comparison, the difference would be much greater.

  6. These days ANYTHING that heats could be replaced with a bitcoin mining rig. Worth looking into that option as it makes you money in the long run.
    *thats a video idea for you – on the house.

  7. The math just doesn’t add up.

    I like the idea of net zero and producing your own energy, but 100k for the whole system vs a traditional 2 stage furnace/ac (I just had a new system put on for $8500) doesn’t pay its self off in energy savings. It would take 50-100 years to offset the increased cost

    It’s funny because only folks who are already higher income or rich can afford to do this, which incidentally means they can afford to pay a higher energy cost. These project as of now are just feel good efforts

  8. When you did your cost analysis, you should also include your lost opportunity cost of the extra $16k over 15 years. If you had put it in a S&P500 index fund 15 years ago, they say the S&P has run 11.2% when taking into account inflation. But let's just say 8%, 15 years, compounding monthly = $52,911 end balance. I'm an HVAC engineer and the Geothermal cannot pay for itself on any true life time cost analysis, taking into account lost opportunity, replacement of equipment etc. Also, they say the hole in the ground with pipe will last forever, but don't believe it, there is a small percentage of failure rate. Ask what your guarantee is on the hole? Also you haven't said what Tonnage you installed? I am a believer in the geothermal VRF system and the water heater. you can experience a real payback on these.

  9. First of all, Thank you for the video! Very informative. I live in Montana. I am planning on installing thermal heating for my house. I do have a couple questions. I know your not the manufacturer, but i thought you might know anyway. If my well has hard water. Would it be better to filter/sofen the water before it gets to the desuperheater? Is there a way to flush the water out for maintenance? Is it needed? Also, how well would it work in -50f weather? Could i use 2 desuperheaters an do partial ducting and partal radiant hotwater heating? Furthermore, do you think verticle or horizontal thermal heating would produce more heat? Thanks again. I look forward to learning more from your videos. 😊

  10. We've had geothermal, correct name Ground Source Heat Pump or GSHP, for 3 years. The 1900 sq ft house was built in 1987 and is well insulated and located in the mid-Hudson Valley in NY. The system consists of 5 ton Aaon WVA 060 E and two 300 ft vertical wells. We opted not to get the water heater because we already have a heat pump water heater. The house already had ducts which we changed to metal because they were fiberboard. Glad we changed those ducts after seeing what they looked like on the inside. The cost in USD: Total-$40,375, Credit for paying cash-$1750, Credit from local electric company $9820, Wrote check for $28,805, Fed Tax Credit of 26% – $7489 for a final cost of $21,315.70. We love the system the air is much fresher without the tinge of heating oil. We also have a 16k solar system that powers the whole house in which everything is electric.

  11. Even though you said it was more expensive, I would still go vertical. Smaller foot print.

    Heard this story from my uncle, about a guy that run a air loop 40 feet out into his yard, the ground heated the air in the winter and cooled it off in the summer. At only the cost of running the fan to move the air.

  12. My middle school history teacher had a geothermal heater, and that dude RAVED about the thing. I dunno if he ever managed to teach me anything about history, but I learned a lot about architecture decisions 😂

  13. Matt, very intriguing thank you so much for bringing this and sharing this for our attention and learning. Yes, please do an in-depth on the Sonic drilling technology. Maybe after a year now it is more commercially available. Especially interested in the residential applications. Thinking about doing this in a new construction job. thx!

  14. promissor, contudo, não entendo pq não incorporar as tubulações dos trocadores de calor nas estacas das fundação da casa… economizar-se-ão milhares de dólares no processo.

  15. I did this 20 years ago and I ran into a problem with the compessor just before the warranty expired …..so it cost me nothing to replace. Believe it or not, the replacement compressor died after 7 years. I started looking for a replacement compressor with a warranty of at least 10 years …… nothing doing. Frankly, I've had refrigerators (which use compressors) that have lasted over 25 years. So I now have a propane furnace, which cost me less than a new compressor. So much for going carbon-free!!!

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