University of Dayton

As part of its commitment to sustainability, the University of Dayton in Ohio became a fair trade university and was the first Catholic university in the nation to divest from fossil fuels. This means UD is committed to renovating or building campus facilities that source power from clean energy, while providing a greener campus in which their students can engage. Solar energy plays a key role.



Solar Solutions

In 2018, Melink Solar & Geo collaborated with UD to install two arrays, totaling a combined 4,026 panels with a capacity of 1.26 megawatts of power. A ground-mounted array was installed at Curran Place, and a roof-mounted array was installed at Fitz Hall. As part of a long-term power purchase agreement, Melink engineered and constructed the arrays, selling the generated electricity to the university.

The solar arrays provide nearly 10 percent of the power consumption of both buildings, as well as power electric car stations at each location. UD has the option to purchase the arrays after eight years. Students, faculty, and researchers participated in the installation of the modules and incorporated the sustainability project into research and curriculum.



University of Dayton ground-mounted solar array installed by Melink Solar
University of Dayton’s ground-mounted array installed by Melink Solar



University of Dayton Roof Mount Solar Array by Melink Solar
University of Dayton’s roof-mounted array installed by Melink Solar




This project helped to define UD as a sustainability leader in the Midwest, as well as among universities. The ground-mount installation resulted in a stunning living laboratory complete with a prairie garden — one of the first in Ohio — to attract native pollinators. The site is home to 81 species of plants that keep the ground cool for panel efficiency, increase the habitat, and create an experiential learning space for students.



University of Dayton Solar Prairie Garden by Melink Solar
The University of Dayton’s pollinator prairie garden


The solar arrays provide about 2 percent of the power campus-wide and offset carbon emissions by about 1 percent annually. Over their 30-year lifespan, the university estimates a $300,000 savings and prevention of 39,000 metric tons of carbon dioxide being added to the atmosphere.


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Benny & Co. Restaurant Case Study

Benny & Co. is a large, family-run restaurant chain based in Canada. Its specialty is roasted chicken, and its rotisserie ovens operate an average of 15 hours per day, 365 days per year. To address ventilation concerns and to help control operating costs, the chain decided to outfit its newly constructed locations with demand control kitchen ventilation (DCKV) systems that self-modulate according to cooking conditions. Thus, ENERGY STAR-rated VariVent™ DCKV systems featuring Intelli-Hood® kitchen hood controls by Melink Corporation, have been installed at 22 sites by Melink’s Canadian distributor/OEM partner ProVent HCE.


Benny&Co Restaurant


The figure to the right displays the average site savings.

Based on data collected from 19 sites, Benny & Co. reduced its average kitchen’s running fan speed from 100% to 60% with the implementation of Intelli-Hood®. Before the DCKV installation, it cost $14,585 (CAD) yearly to operate a kitchen; this was cut nearly in half to $7,486. Each site’s system will pay for itself in just 1.7 years. With this system, Benny & Co. is not only able to reduce its immediate energy consumption but is able to use the technology to continually monitor usage and adjust as necessary.

3-Day Snapshot of Fan Speed Regulation After DCKV System Installed



Hood installation at Benny & Co.

Download the full case study or contact us today to learn more about Intelli-Hood® and the benefit of kitchen hood controls.

Average site savings with Intelli-Hood at Benny&Co

Case Study: Coffee House Chain


Since 2016, Melink has been contracted by a national coffee house chain to perform HVAC services. As part of a multi-year, multi-site program, Melink has performed full HVAC testing and balancing, as well as building commissioning, for the chain’s new locations in the Midwest U.S.

After each site visit, Melink provides a detailed report including a punchlist, which is promptly distributed prior to the technician leaving the site. These reports allow the customer to resolve punchlist items under warranty and hold contractors accountable for their work, ultimately leading to cost savings and projects adhering to their respective construction timelines.



Melink has proven to be a knowledgeable third party for the chain. By partnering with Melink, the chain realized construction quality improved over time, thanks in part to the consistent relationships Melink built with contractors. The more Melink worked with the chain’s hired contractors, higher quality construction was completed.

The following data was analyzed from among 34 job sites Melink visited in 2016 and 2019:

  • Overall punchlist items that were corrected while Melink was on site or between visits increased from 3% in 2016 to 30% in 2019. This is 10x more corrected items.
  • Open punchlist items for the mechanical contractor decreased from 62% to 43%. There was a 30.6% reduction in open mechanical items, which can contribute to negative building pressure and comfort issues.
  • Engineer punchlist items increased from 1% in 2016 to 6% in 2019. This is due to Melink’s additional review to help prevent repeat issues stemming from mechanical design.
  • Controls punchlist items decreased from 7% in 2016 to 3% in 2019.


Download the full case study.

The Merrion Hotel Case Study

The Merrion Hotel is a luxury resort located in Dublin, Ireland. The hotel has 123 guest rooms, 19 suites, event spaces, a spa, two bars, and two restaurants. Back-of-house includes two full kitchens that operate 24/7, 365 days per year.


To help mitigate potential ventilation issues and to help control operating costs, the hotel decided to install a demand control kitchen ventilation system in one of the kitchens. Thus, an ENERGY STAR-rated Intelli-Hood® kitchen hood controls system was installed by EFTECH, Melink’s distributor in Ireland. The Intelli-Hood® system controls the ventilation fan speed, depending on the current conditions of the kitchen hoods. Temperature and optic sensors are used to detect heat and steam, and these sensors will change the fan speed accordingly. This saves, in the case of The Merrion Hotel, 38% of ventilation fan energy consumption. Reducing the fans from running 24 hours per day not only saves energy consumption from the
extract and supply fans but also creates considerable heating and cooling savings.


The Merrion Hotel experienced a strong return on its Intelli-Hood® investment: less than an 18-month payback, based on the recorded data. This further supports the case that 90% of lodging with on-site commercial kitchens can benefit from Intelli-Hood®. The hotel was not only able to reduce its immediate energy consumption by 48% but is also able to use the technology to continually monitor usage and adjust
as necessary.

Download the full case study or contact us today to learn more about Intelli-Hood® and the benefit of kitchen hood controls.


Correctional Facility Case Study


Melink’s Intelli-Hood® system is part of an Energy Savings Performance Contract (ESPC) with this California county jail, which houses 680 inmates.

ESPCs provide guaranteed energy savings in their contracts, so Melink’s customer (an engineering firm representing the facility) was on the hook for the proposed energy savings.

Because Melink uses site-specific information combined with performance data from hundreds of previously installed Intelli-Hood® systems, system performance can be predicted accurately.

Melink also ensures its estimates are conservative so as not to “oversell” savings, especially in a case like this where the customer is responsible for guaranteed savings. Melink “undersold” and over-delivered on energy savings for the county jail.



Correctional Facility Case Study Cash Flow Graph


Download the full case study or contact us today to learn more about Intelli-Hood® and the benefits of kitchen hood controls.

Case Study: Retail New Construction


A national retail chain experienced rapid growth, adding 70 new locations in a span of 10 weeks to keep up with demand. Melink performed full testing, balancing, and commissioning at each location, which included providing detailed reports for each site. This allowed the customer to resolve punchlist items under warranty, hold contractors accountable to their work, and open the stores on time.


Sample of Findings






Melink completed all 70 locations in 10 weeks and found a total of 594 punchlist items, which averaged approximately eight per location. By catching these issues before they became serious problems, it led to reduced customer and store complaints, as well as a 15% decrease in maintenance calls and an estimated 60% decrease in maintenance costs over the first 12 months. In addition, the retailer had an estimated ROI on its commissioning program within 18 months of the new openings. The fast-paced schedule allowed the retailer to open each location on time and fully balanced.

Download the full case study.


Case Study: HVAC Equipment Assessment


A multi-level building, consisting of medical offices, had no pre-existing
mechanical plans of its facility when a new management firm took ownership. With tenants practicing various medical fields and a stream of daily visitors to the building, the new owner needed to ensure that the ductwork and airflow were verified and running properly. Proper ventilation can help prevent the spread of airborne pathogens and other health risks.

Melink created a detailed schedule for the full project and each individual office suite. This schedule provided tenants with sufficient notice for Melink’s technicians to easily gain access to perform the commissioning services.



Melink completed the detailed documentation of the ductwork for the office building’s HVAC and exhaust systems, which included noting all the sizes and equipment locations for each floor and suite. This report also noted abandoned and disconnected units located above the ceilings.

Ultimately, the initial assessment of existing equipment that took place in 2019 led to scheduling a second phase of the project: rebalancing and changes to the building’s layout to be completed in early 2022.

Learn more about Melink’s testing, balancing, and commissioning services. Download a copy of this HVAC equipment assessment case study.


HVAC Equipment Assessment case study stats

Grocery Case Study



Over the last 15 years, Melink has partnered with a major grocery banner in the Southeast United States to help reduce the volume of conditioned air being exhausted through its stores’ kitchen hoods. Since replacing exhaust air with conditioned air comes at a premium in regions with high temperatures and high humidity, the need to dial in this minimum volume of replacement air becomes critical.





Melink offered Intelli-Hood®, its demand control kitchen ventilation system, as a solution to actively monitor cooking loads and to reduce kitchen hood exhaust volumes, thus reducing the replacement of conditioned air.

To date, Intelli-Hood® has been installed in more than 420 of the chain’s stores across the Southeast. By randomly sampling 30 of these systems, Melink concluded that this grocery banner saves $615,000 per year in fan energy and conditioned air savings (across its 420 stores).



Intelli-Hood Grocery Case Study Graph of average fan speeds


Download the full case study or contact us today to learn more about Intelli-Hood® and the benefits of kitchen hood controls.


Culinary School Retrofit

The leading culinary school in Melbourne, Australia, features several full training kitchens that operate 24/7, 365 days per year.






To address the ventilation system in the facility’s largest kitchen and to help control operating costs, the school decided to retrofit the existing design with a demand control kitchen ventilation system to self-modulate according to cooking conditions. Thus, an ENERGY STAR-rated Ecosense Ecocanopy, featuring kitchen hood controls by Melink Corporation, was installed in the training kitchen.





Crown Culinarium Retrofit Results with Intelli-Hood

With the implementation of Intelli-Hood® into the kitchen hoods of the training kitchen, the school was able to reduce its fan speed from 100% all the time to an average of 38%. Before Ecosense and Intelli-Hood®, it cost $28,912 (AUD) yearly to operate the kitchen; this was reduced to $5,490. The system will pay for itself in about two years.

With this improvement, the college was not only able reduce its immediate energy consumption but is able to use the technology to continually monitor usage and adjust as necessary.



Example of Fan Speed Regulation Throughout the Day After Ecosense System Installed


Download the full case study or contact us today to learn more about Intelli-Hood® and the benefit of kitchen hood controls.


Case Study: New Construction


A fast-casual restaurant chain, which has undergone rapid growth in recent years, contacted Melink for assistance on its new construction HVAC projects. The chain’s rapid growth resulted in a fast-paced construction schedule. On average, a new store is completed in six weeks, which poses quality control challenges. Verifying that equipment is installed properly and operating to design specs is critically important.

Knowing that heating and cooling play a major role in building comfort, the company tried out Melink’s HVAC commissioning services at two of its Tennessee construction locations in early 2015. Deemed successful, the program expanded to 59 stores across the Midwest region being balanced by Melink in 2016. And in 2017, Melink provided HVAC commissioning services to more than 200 locations across the Midwest, South Central, and New York Metropolitan regions.

Punch List Examples


Melink completed the commissioning services and provided balance reports promptly so that the company’s management team would know the equipment was correct and installed properly. Melink’s expediency also allowed the company to resolve punch list items under warranty, hold contractors accountable, and open the stores on time.

Revisits were necessary for 60% of the locations. Revisits are required when punch list items involve critical airflow corrections, such as a rooftop unit located on the wrong curb, wrongly sized equipment, or defective ductwork. Melink’s reports are also being used as part of the LEED certification application for the stores.