See how we helped Gettysburg Museum and Visitor Center achieve LEED Gold status! 

The 139,000 sq ft museum and visitor center receives more than one million visitors annually, and in 2010 was the fourth museum in the nation to earn LEED GOLD status, with Boland's geothermal chiller plant solution.

  • 168 Wells

  • Two modular heat recovery chillers

  • Four plate heat exchanges

  • Air separators, valves, and sensors

  • Expansion Tanks

  • Digital controller

Gettysburg Museum and Visitor Center

Source: Mutlistack, LLC 2011

In 2010, the Gettysburg Museum and Visitor Center were awarded U.S. Green Building Council’s Leadership in Energy and Environmental Design (LEED) Gold certification. It is the first museum in Pennsylvania to achieve LEED Gold status and only the fourth museum nationwide.

Although the soldiers who fought at Gettysburg 150 years ago sweltered in the July heat, the museum’s more than two million annual visitors remain comfortable no matter the season thanks to an innovative geothermal HVAC system. In addition to providing visitor comfort, proper temperature and humidity control are critical for the long-term preservation of historical artifacts. Historical artifacts, documents, and paintings require constant and specific dry-bulb temperature and relative humidity for best preservation.

Gettysburg Museum

Museums try to maintain a constant temperature of 45 to 55 percent relative humidity as fluctuations in temperature and humidity can cause damage to artifacts including brittleness, cracking, splitting, and warping. In extreme cases, poor humidity control can cause mold. The Gettysburg Visitors Center and Museum design team specified a system that would maintain a temperature of 75 degrees F and 50 percent relative humidity.


The design team required a highly efficient HVAC system. After studying a variety of system designs considering the specific temperature, humidity and comfort level requirements, plus

Gettysburg Museum

The geothermal system is on track to pay back its higher installed cost in only seven years. The geothermal system was designed by Tatyana Shine who worked with Boland to select and install a 500- ton packaged heat recovery chiller plant. The plant includes two Multistack modular heat recovery chillers plus four plate heat exchangers, air separators, expansion tanks, valves, sensors and a digital controller.


The Multistack heat recovery chillers were selected for multiple reasons including reliability, their modular design, and their small footprint that was ideal for the limited equipment room space available. High efficiency and the ability to operate at an extended water temperature range were also very important factors in selecting the Multistack heat recovery chillers. They also feature reliable safety controls.


first cost and operating costs, the design team focused on using a geothermal system. Energy analysis models showed a 40 percent energy use cost savings of a geothermal system over a conventional chilled water/ hot water HVAC system.