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the43k
@casemon the loops are PVC geothermal grade, they last 50 years. Copper is not an option. Cost is very difficult because there are 20 different variables, including soil type to size of home. it could cost 25k to 45k for a house 2000sqft to 4000sqft. That is before the 30% tax credit and other state rebates. In general the payback is about 7 years and you can expect 50% to 75% reduction in energy costs for heating and cooling.
casemon
Thanks for sharing this. Watching the video in the car with my father, he has a question:What material are the loops made from? Was copper considered, given it's high thermal efficiency?Also, what was the total cost, including equipment, landscaping, drilling, materials, etc.?+1 for The Zeitgeist Movement; we're one planet and we can do better than we currently are; we have the means today! GeoThermal is just one piece to solving our shared energy issues.
the43k
The temperatures fluctuate during the seasons. If we started with a temperature of 55 degrees going into winter, at the end of the season, the inline temperatures could be 31 degrees. Generally, the efficiency will be the best during the beginning of each season. Ground coldest at beginning of summer, because of all the heat taken out and ground the warmest at beginning of winter because of all the heat added. As long as you have an 8 degree temperature difference, the system will work properly.
HeavyDemir
what is the coolant temp going in and coming out of the wells ??
the43k
There is some manipulation of price, and some companies are worse than others, however, with geothermal systems, including Waterfurnace, they use very high quality and efficient components. You also need to compare Geo to the highest quality furnace or hybrid unit. Ultimately, it is a different installation process, that many techs don't know how to do, so at this point its a higher skill level trade, or at least different. So there is a limited number of contractors that have the ability
Sweeeeny
Comparing air-to-air and Geotherm forced air costs. Plumbers hear “Geo” & up go prices. Ducting is the same as is the control electronics. The units have the same components- compressor, condenser, evaporator, etc. 400’ well is app $7.5k installed, glycolled, pumped and presented to the plumber ready to connect. The A to A requires components outside & you need to bury refrigerant & power lines & build a plinth. Difference in price is between $8-$10k extra ignoring the cost of the well. Why?
the43k
@Sweeeeny Agreed. At the time it was 6k to have a mud (sand) driller and about 14k to have a rock driller. With a transition from sand to rock being about 80ft, we'd have to case (steel pipe) all the way to 80 ft. Very expensive, before the 30% federal tax credit and we had limited funds. In the position I'm in now, I'd highly consider what you are suggesting.
Sweeeeny
Curious - why stop at the bedrock? It has much better thermal properties than sand and gravel and I would have thought the equipment you had there would go through it without problem. Two x two hundred would be my choice.
truthteller908
@the43k I live in Jersey and I'm interested in becoming part of the team. How can I get my foot in the door in this buisness? I'm 27 and have some HVAC experience under my belt already (completed 11month Lincoln Tech HVAC course and have worked for Richards heating and cooling doing residential installations in essex county) and will work for peanuts for the opportunity to gain some geothermal experience.
truthteller908
I live in Jersey and I'm interested in becoming part of the team. How can I get my foot in the door in this buisness? I'm 27 and have some HVAC experince under my belt already and will work for peanuts for the opportunity to gain some geothermal experience. |