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Hollis Energy Companies
2 companies listed

Basic Member
Since Oct, 2021
Specializing in Water-Source Heat Pump Systems since 1978, the VIRSTAR Geothermal Energy HVAC Group can provide a total solution, from system sizing and layout through installation supervision, for new or retrofit heating, ventilation, and air conditioning systems using the latest in water source heat…
Basic Member
Since Apr, 2020
Geothermal Energy HVAC Group   Specializing in Water-Source Heat Pump Systems since 1978, the VIRSTAR Geothermal Energy HVAC Group can provide a total solution, from system sizing and layout through installation supervision, for new or retrofit heating, ventilation, and air conditioning systems…
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