Burgess & Niple (B&N) completed the design services for comprehensive HVAC upgrades at the First Lutheran Church of Norfolk. The upgrades addressed several critical issues within the existing system while protecting the structure’s historic features. This included replacing a failing steam boiler system with modern split system heat pumps and condensing hot water boilers, resulting in improved energy efficiency and reduced operational costs.
The project approach included thorough field investigations, mechanical load calculations, and detailed engineering for mechanical and electrical systems. The team attended design review meetings and prepared record drawings of the existing mechanical infrastructure. Construction administration services, such as shop drawing reviews and responses to requests for information, helped ensure a smooth project execution.
Preserving the Past
Throughout the project, balancing modern HVAC requirements with historical preservation remained a constant consideration, requiring thoughtful engineering and execution to achieve both functional improvements and architectural conservation.
One major concern was controlling humidity in the church’s main sanctuary area. The existing dedicated outside air unit did not have a reheat coil or a means of dehumidification control, which put important historic architectural features and religious artifacts at risk. To protect these historic pieces, B&N designed the new unit to include a hot water reheat coil with a modulating control valve to provide dehumidified neutral-temperature air to the space when relative humidity rises.
Another challenge was modernizing the building's HVAC system to eliminate the use of steam while preserving the church's historical features. This was addressed by replacing steam coils with hot water coils where feasible and using electric coils as alternatives when necessary to avoid compromising historical building elements.
Historic Facility with Modern Amenities
The HVAC system upgrades provided by B&N enhanced overall comfort through improved temperature control and air quality. The upgrades resulted in more consistent climate conditions throughout the church, creating a more inviting space for congregants during services and activities. Energy efficiency improvements led to reduced utility costs and maintenance requirements, aligning with the church's financial goals.
This comprehensive upgrade also modernized the church's HVAC systems while safeguarding its historic elements, fulfilling both functional and preservation objectives.