GEO-HEAT
CENTER 
The Geo-Heat Center Quarterly Bulletin informs the geothermal technical community and the public on progress in research and development activities of direct heat utilization of low-temperature resources. This periodical provides valuable "how to" articles on various geothermal applications and equipment. It has been published since 1975. Back issues of this periodical are available upon request and can be viewed at the following page Geo-Heat Center Comprehensive Bulletin Index.

| Geothermal Use in Montana | Vol. 31, No. 4
| Geothermal Use in Wyoming | Vol 31, No. 3
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| National Geothermal Academy | Vol 31, No. 2
| Geothermal Use in the Dakotas | Vol 31, No. 1
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| Geothermal Policy in the U.S. | Vol 30, No. 4
| Geothermal Use in Oregon | Vol 30, No. 3
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| Geothermal Use in the Eastern United States | Vol. 30, No. 2
| Geothermal Heat Pumps - Historic Preservation and District Heating | Vol 30, No. 1
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| Geothermal Resources of Arizona and Washington State | Vol. 29, No. 4
| In Memoriam: Geothermal Direct Use Pioneers | Vol 29, No. 3
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| Development of Direct Use Projects | Vol 29, No. 2
| US Geothermal Projects and Resource Areas | Vol 29, No. 1
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| Geothermal District Heating | Vol 28, No. 4
| Sustainability - World Generation - Australia | Vol 28, No. 3
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| Geothermal Energy Uses | Vol 28, No. 2
| Biofuels from Geothermal | Vol 28, No. 1
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| Utilizing Geothermal | Vol 27, No. 4
| Hot Springs, Power and Ice | Vol 27, No. 3
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| Geothermal Heat Pump Case Studies of the West | Vol 26, No. 3
| Combined Geothermal Heat and Power Plants | Vol 26, No. 2
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| Geo-Heat Center's 30th Anniversary | Vol 26, No. 1
| Utah Geothermal Resources and Utilization | Vol 25, No. 4
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| Geothermal (Ground Source) Heat Pump - 100 Years of Geothermal Power - Chili and Garlic Dehydration | Vol. 25, No.
3 | The Utilization of Geothermal Energy | Vol 25, No. 2
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| Geothermal Direct-Use Case Studies II | Vol 25, No. 1
| Selections from European Geothermal Conferences | Vol 24, No. 4
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| Industrial Uses of Geothermal Energy | Vol 24, No. 3
| Geothermal Direct-Use Case Studies | Vol 24, No. 2
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| Geothermal Map of California | Vol 24, No. 1
| New Mexico Geothermal Resources and Utilization | Vol 23, No. 4
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| Geothermal Projects | Vol 23, No. 3
| Geothermal Potpourri | Vol 23, No. 2
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| Wells and Hot Springs | Vol 23, No. 1
| Geothermal Drilling | Vol 22, No. 4
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| Temperatures of Residential Wells in the Moana Geothermal Area, Reno, Nevada | Vol 22, No. 3
| Geothermal in Europe | Vol 22, No. 2
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| Geothermal Heat Pumps (GHP) | Vol 22, No. 1
| GEA/GRC Geothermal | Vol 21, No. 4
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| Spas and Balneology | Vol 21, No. 3
| Zinc Meters Snow | Vol 21, No. 2
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| U.S. Direct-Use Update | Vol 21, No. 1
| International Geothermal Days Oregon 1999 | Vol 20, No. 4
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| Downhole Heat Exchangers | Vol 20, No. 3
| Small Geothermal Power Projects | Vol 20, No. 2
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| Oregon and California Direct-Use in Action | Vol 20, No. 1
| GHC Techncial Assistance and International Activities | Vol. 19, No. 4
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| NEW ZEALAND GEOTHERMAL Wairakei - 40 Years | Vol. 19, No. 3
| GEO-HEAT CENTER | Vol. 19, No.
2 |
| Geothermal Direct-Use Equipment | Vol. 19, No.
1 | South Dakota Geothermal Uses | Vol. 18, No.
4 |
| Geothermal District Heating | Vol. 18, No.
3 | Geothermal Heat Pumps (GHP) | Vol. 18, No.
2 |
| Factors Influencing Greenhouse Heating | Vol. 18, No.
1 | Geothermal Energy in Iceland | Vol. 17, No.
4 |
| U.S. Geothermal Projects and Resource Areas | Vol. 17, No.
3 | Beppu Jigokus | Vol. 17, No.
2 |
| World Geothermal Direct Use Update | Vol. 17, No.
1 | Geo-Heat Center's 20th Anniversary | Vol. 16, No.
4 |