Iowa experiences warm, humid summers and long, cold winters. ERV systems recover energy to reduce heating and cooling energy consumption in both seasons and regulate air humidity, 

making them suitable for various building types across most of the state. Based on local HVAC service distribution and practical application cases, the following areas and locations are particularly 

suitable for installation:

1. **Des Moines**

As the state capital, commercial buildings and residences are key application scenarios for ERV systems. For example, the historic Market One building, Iowa's first net-zero energy commercial building, 

installed an ERV system from ODS during renovations, combining it with geothermal wells and solar panels for high energy efficiency. Additionally, newly built office buildings, shopping malls, and high-density 

upscale residences and apartments in the city, due to their high degree of airtightness and demanding ventilation and energy consumption control requirements, are also well-suited for this system.

2. **Ames and Iowa City**

These two cities have a high concentration of universities and well-developed HVAC services, making ERV systems suitable for a wide range of scenarios. On the one hand, newly built energy-efficient homes and 

renovated older homes in the area often suffer from insufficient natural ventilation after improvements in airtightness. Installing ERVs can reduce energy consumption while ensuring air circulation, meeting 

residents' needs for indoor air quality. On the other hand, in high-traffic areas or places with high air quality requirements, such as teaching buildings, laboratories, and libraries at universities like the University 

of Iowa, ERVs can meet the ventilation needs of large numbers of people while reducing the operating costs of the school's HVAC system, aligning with the EPA and DOE recommendations for installing ERVs in densely 

populated buildings.

3. **Small and Medium-Sized Cities like Vinton and Cedar Rapids**

HVAC service providers in Vinton explicitly use ERV systems as a core solution for improving indoor air quality, providing installation services specifically for local residences. The situation is similar in smaller, 

more industrially and commercially active cities like Cedar Rapids and Burlington. Small manufacturing plants, community shops, and hospital annexes in these cities require stable ventilation to ensure 

environmental quality while also wanting to control energy costs; ERV systems can effectively balance these two aspects. Furthermore, ERVs are commonly used as a complementary ventilation device in energy-saving 

renovations of older commercial buildings in these areas.

4. **Born and Des Moines Surrounding Areas**

In satellite cities surrounding Des Moines, such as Born, HVAC companies frequently undertake crawl space ventilation retrofit projects. These areas have a large number of detached and townhouses, 

and their crawl spaces and basements are prone to mold problems due to dampness. ERV systems can prevent these problems by regulating humidity and promoting air circulation, while also reducing the load 

on the whole-house heating and cooling systems, making them an excellent choice for residential ventilation retrofits.

5. **Cold Northwestern Regions of the State**

This region often experiences winter temperatures as low as -20°C to -25°C with little rainfall. The heat recovery function of ERV systems is particularly advantageous here. In rural homes, small farm outbuildings, 

and town center communities, installing ERVs allows for the recovery of heat from exhaust air in winter to preheat incoming fresh, cold air, reducing heating energy consumption. In summer, it cools the interior 

through energy exchange and regulates humidity, creating a more comfortable indoor environment.

6. **Central Agricultural Buildings**

Iowa is a major agricultural state in the United States, with a large number of large-scale livestock farms in its central region. For example, some commercial pig farms and other livestock buildings are prone to indoor 

air pollution and high energy consumption for cooling during the hot summer months due to their enclosed environment. ERV systems can recover the cooled air exhausted from indoors while introducing fresh air, 

helping to reduce the energy consumption for cooling livestock sheds. They can also reduce the impact of sudden changes in indoor and outdoor temperature and humidity on livestock. When used in conjunction 

with equipment such as evaporative cooling pads, they can further optimize the farming environment.