Category "evaporative cooler"

Proper ventilation is one of the most critical yet often overlooked elements of a commercial kitchen. Whether it is a restaurant, hotel kitchen, cloud kitchen, industrial canteen, or food court, an efficient ventilation system directly impacts safety, hygiene, energy efficiency, staff productivity, and regulatory compliance.

In this blog, we explain why proper ventilation is essential in commercial kitchens, how it affects daily operations, and what businesses should consider while designing a compliant system.

Read – Best HVAC Solutions for Warehouses and Factories

What is Commercial Kitchen Ventilation?

Commercial kitchen ventilation refers to a system of exhaust hoods, ducting, exhaust fans, and fresh air supply designed to remove:

– Excess heat
– Smoke and steam
– Grease-laden vapors
– Odors and harmful gases

A well-designed ventilation system ensures clean air inside the kitchen while maintaining pressure balance with surrounding spaces.

1. Fire Safety and Risk Reduction

Commercial cooking produces highly flammable grease vapors. Without proper ventilation, grease accumulates inside hoods and ducts, significantly increasing the risk of kitchen fires.

Proper ventilation:

✓ Captures grease at the source using baffle filters
✓ Reduces grease buildup in ducts
✓ Supports integration of fire suppression systems

This is why fire authorities mandate fire-rated ducting and mechanical exhaust systems for commercial kitchens.

2. Heat Control and Staff Comfort

Kitchens generate intense heat from cooking equipment like fryers, ranges, ovens, and tandoors. Poor ventilation leads to uncomfortable working conditions, fatigue, and reduced productivity.

An effective ventilation system:

✓ Removes excess heat
✓ Maintains manageable kitchen temperatures
✓ Improves working conditions for chefs and kitchen staff

Comfortable staff work more efficiently and make fewer errors during peak hours.

3. Indoor Air Quality and Health

Cooking releases pollutants such as carbon monoxide, nitrogen dioxide, and fine particulate matter. Continuous exposure to these pollutants can affect staff health.

Proper ventilation helps:

✓ Remove harmful gases
✓ Reduce respiratory discomfort
✓ Maintain healthy indoor air quality

This is especially important in cloud kitchens and enclosed commercial spaces.

4. Hygiene and Food Safety Compliance

As per FSSAI Schedule 4, kitchens must have adequate ventilation to prevent smoke, condensation, and grease droplets from contaminating food.

A compliant ventilation system:

✓ Prevents oil and water from dripping onto food preparation areas
✓ Reduces odor buildup
✓ Supports hygienic cooking conditions

Poor ventilation is a common reason for FSSAI non-compliance and inspection failures.

5. Odor Control and Customer Experience

Uncontrolled cooking odors can travel to dining areas, corridors, or neighboring properties, negatively impacting customer experience and brand image.

Proper ventilation:

✓ Contains odors within the kitchen
✓ Protects dining and public spaces
✓ Is essential for restaurants, hotels, and mixed-use buildings

6. Energy Efficiency and Cost Savings

When ventilation is poorly designed, kitchens lose conditioned air, leading to higher energy consumption.

A well-planned system:

✓ Balances exhaust and fresh air
✓ Reduces unnecessary load on air cooling systems
✓ Lowers long-term energy and maintenance costs

7. Regulatory Compliance (NBC, FSSAI & Fire Norms)

In India, commercial kitchen ventilation must comply with:
✓ National Building Code (NBC)
✓ FSSAI food safety regulations
✓ Local fire authority norms

Proper ventilation ensures:

✓ Faster approvals
✓ Smooth fire NOC and license renewals
✓ Safe and legally compliant operations

How Degree Day Provides End-to-End Ventilation Solutions for Commercial Kitchens

Degree Day Pvt. Ltd. provides comprehensive ventilation solutions for commercial kitchens, enabling restaurants, hotels, cloud kitchens, and industrial canteens to maintain a safe and comfortable working environment. Proper kitchen ventilation is essential for removing heat, smoke, grease, and odors. We design systems that do exactly that efficiently and reliably.

With over 26 years of experience and ISO 9001:2015 certification, we handle everything from ventilation system design to installation and execution. In our commercial kitchen ventilation systems, we use high-quality MS ducts that can withstand high cooking temperatures and improve fire safety, and we also install powerful exhaust systems that capture smoke and grease at the source, keeping the kitchen air clean and fresh.

By reducing heat buildup, improving indoor air quality, and supporting safety compliance, Degree Day’s kitchen ventilation solutions help commercial kitchens operate smoothly, safely, and efficiently every day.

Frequently Asked Questions

Cooling large commercial and industrial spaces is a challenge. Many businesses initially try to use multiple desert coolers, thinking it will reduce cost. However, they soon encounter issues such as uneven cooling, rising humidity, high maintenance, and poor comfort.

Desert coolers are great for small rooms, but they are not designed for large, open, high-heat-load environments. This is where Central Air Cooling becomes the smart, efficient, and long-term solution.

What is a Desert Cooler?

A desert cooler is a portable air-cooling device that cools air through water evaporation. A desert cooler is a type of evaporative cooler. All desert coolers are evaporative coolers, but not all evaporative coolers are desert coolers.

It is commonly used in hot, dry regions because it provides low-cost cooling with minimal electricity.

How a Desert Cooler Works
1. Hot outdoor air is pulled into the cooler using a fan.
2. The air passes through wet cooling pads (wood wool or honeycomb).
3. Water evaporates and cools the air.
4. The fan pushes this cool, moist air into the room.

Advantages	Limitations
Affordable operation	Noisy Operation
Fresh outdoor air	Manual Water Refill Required
Eco-friendly (no refrigerants)	Aesthetically not Pleasing

Centralised coolers overcome the limitations of desert coolers by providing silent cooling, automatic water refill, drain cycle options, and a sleek, integrated design that enhances the overall aesthetics of any space.

Difference Between a Dessert Cooler and an Evaporative Cooler

Feature	Desert Cooler	Evaporative Cooler (General)
Category	A type of evaporative cooler	Broad technology
Coverage Area	Small rooms	Small to very large spaces
CFM	2,000–6,000	2,000–60,000+
Usage	Residential	Residential + commercial + industrial
Humidity	High	Controlled or high, depending on the system
Cooling Method	Basic evaporation	Basic or advanced engineered systems
Example	Plastic/metal room coolers	Central air cooling, ducted coolers, industrial coolers

The Problem With Desert Coolers in Big Spaces and the Right Cooling System

1. Desert Coolers Can’t Handle Large Coverage Areas

A desert cooler works well only within a limited range. When placed in a big hall, factory, or warehouse:

1. The air flow reduces after a few meters
2. Cooling doesn’t reach all corners
3. Hot and cold patches appear everywhere

In short, desert coolers cool only the area directly in front of them, not the entire building.

How Central Air Cooling Fixes This

In Central Air Cooling, high-capacity blowers and strategically designed ducts are used to supply cool, fresh air evenly throughout the space. No pockets of heat. No dead zones. Just uniform, consistent cooling everywhere.

2. Too Many Coolers = Too Much Humidity

When you install multiple coolers in one space, all of them release moisture. This leads to:

1. Sticky, uncomfortable air
2. Increased humidity
3. Reduced cooling performance
4. Dampness around equipment or products

Workers feel tired, sweating increases, and productivity drops.

How Central Air Cooling Fixes This

Central systems balance humidity using controlled evaporation and continuous fresh air intake. They maintain the ideal comfort level of cooler air, but without over-humidification.

3. High Maintenance Burden

Each desert cooler has its own Motor, Pump, Water system, Pads, and Wiring. When you need 10–20 coolers for a large area, maintenance becomes a full-time job. Breakdowns are frequent, and electricity consumption increases with every added unit.

How Central Air Cooling Fixes This

Instead of many small coolers, you have one central cooling plant with ducts. This means:

1. Fewer moving parts
2. Lower breakdowns
3. Easy, centralized servicing
4. Better long-term reliability

4. Poor Indoor Air Quality (IAQ)

Desert coolers often recirculate indoor air or pull in dusty outdoor air without proper filtration. In industrial environments, this becomes a serious issue, affecting:

1. Worker health
2. Product quality
3. Machine efficiency

How Central Air Cooling Fixes This

Central systems bring in 100% fresh filtered air, improving IAQ significantly. You get:

1. Cleaner air
2. Better ventilation
3. Reduced odors
4. Healthier work environment

5. Unable to Handle Industrial Heat Load

Large spaces produce heat from Machinery, Processes, Lighting, and Manpower; a desert cooler cannot remove or dilute this heat effectively. It cools only the immediate spot and struggles in high-temperature conditions.

How Central Air Cooling Fixes This

Centralized systems use large evaporative cooling modules with 85–90% efficiency. They are specifically designed for:

1. High heat load
2. Long working hours
3. Harsh industrial conditions
4. Large airflow requirements

This gives powerful, consistent cooling even during peak summer.

Why Central Air Cooling Is the Smarter Choice

✔ Uniform cooling across large spaces
✔ Controlled humidity and better comfort
✔ Lower electricity consumption compared to AC
✔ Reduced maintenance
✔ Improved indoor air quality
✔ Perfect for factories, warehouses, workshops, and commercial spaces

Central Air Cooling combines the simplicity of evaporative cooling with the scale and efficiency of centralized HVAC engineering. Desert coolers are affordable and effective for small rooms, but they fail when it comes to cooling large industrial or commercial spaces. Humidity rises, maintenance becomes chaotic, and cooling stays uneven.

Central Air Cooling, on the other hand, provides:

1. Uniform cooling
2. Fresh air
3. Low operating cost
4. Reliable performance
5. Long-term savings

If you want to cool a big space efficiently and economically, Central Air Cooling is the solution that truly works.

How Degree Day Delivers a Complete Central Air Cooling Solution

To make Central Air Cooling truly effective, you need the right engineering, the right equipment, and the right air distribution system. Degree Day provides all three. We offer fully integrated Central Air Cooling systems along with high-quality prefabricated ducts that ensure smooth, uniform airflow across large spaces. Our solutions are designed to handle industrial heat loads, improve IAQ, reduce energy consumption, and deliver consistent cooling with minimal maintenance.

With Degree Day’s expertise, businesses get a reliable, efficient, and long-term cooling system that works perfectly for factories, warehouses, workshops, and large commercial buildings.

Recent Blogs

• Importance of Proper Ventilation in Commercial Kitchens
• Why Desert Coolers Fail in Big Spaces and How Central Air Cooling Solves This
• How PM2.5 and PM10 Impact Your Lungs
• Top 3 Commercial & Industrial Coolers
• Which HVAC System Suits Your Industry? A Complete Guide for Every Sector

When it comes to cooling large commercial and industrial spaces, such as factories, warehouses, workshops, production floors, gyms, or commercial kitchens, choosing the right evaporative cooler makes all the difference. High airflow, low energy consumption, durable construction, and easy maintenance are key factors that determine the true value of any industrial cooling system.

To help businesses make the best decision, here’s a curated list of the Top 3 Commercial & Industrial Coolers trusted across India for powerful cooling, reliability, and long-term performance.

1. E-Series Evaporative Cooler

The E-Series is a premium, high-technology industrial and commercial air cooler designed to withstand harsh Indian conditions. Equipped with advanced microprocessor-based controls, it delivers intelligent and energy-efficient cooling. It can operate with or without ducting, offering flexible installation options. The E-Series model is available in two variants: Top Discharge and Bottom Discharge.

With a Wi-Fi display, the cooler can be conveniently controlled using a mobile phone. It features 50-speed settings for precise airflow adjustment, a water level sensor that detects low water levels, and an auto-drain function that can be programmed between 8 and 72 hours.

E-Series Features & Specifications

1. Airflow options up to 10,000 CFM
2. Available in both single-phase and three-phase models
3. Tank capacity: 40 litres
4. Peak water consumption: approximately 20-120 litres per hour

Buy E-Series Evaporative Cooler

2. E-Series Eco Budget Cooler

The E-Series Eco is designed for users who want strong cooling performance but at a more economical price point. It maintains the same core reliability as the E-Series, but with optimized features for cost efficiency. The E-Series Eco model is available in two variants: Top Discharge and Bottom Discharge. It has an auto-drain function that can be programmed between 8 and 72 hours.

E-Series Eco Features & Specifications

1. Airflow options range from 10,000 CFM to 17,600 CFM
2. Available in both single-phase and three-phase models
3. Tank capacity: 25 – 30 litres
4. Peak water consumption: approximately 20-120 litres per hour

Buy E-Series Eco Budget Cooler

3. M-Series Duct Cooler

The M-Series is engineered for central cooling where long duct lengths and high static pressure are required. These coolers are constructed from heavy-duty galvanized steel and powder-coated for enhanced durability. They are ideal for projects requiring centralized air distribution across multiple rooms or large floor areas.

M-Series Duct Cooler Features & Specifications

1. Airflow options range from 4,000 CFM to 40,000 CFM
2. Available in both single-phase and three-phase models
3. Tank capacity: 50 – 600 litres
4. Peak water consumption: approximately 48 – 480 litres per hour
5. Fixed & Variable Auto-drain function that can be programmed between 8 and 72 hours.

Buy M-Series Duct Cooler

Checklist for Buying Commercial & Industrial Coolers

1. Evaporative coolers work best in hot, dry regions where humidity is low. They are ideal for Central and Western India (Madhya Pradesh, Rajasthan, Maharashtra), but less effective in coastal or humid zones such as Kerala, West Bengal, and Chennai.

👉 Rule of thumb: If your local humidity is consistently above 60%, consider hybrid cooling solutions.

2. Airflow capacity, measured in CFM (Cubic Feet per Minute), should be chosen according to your room size or area. The table below helps you understand how much airflow you require and which cooler suits you best.

👉 For factories, warehouses, or banquet halls, always opt for high-CFM industrial coolers.

Room Size	Recommended CFM
Small rooms (up to 250 sq. ft.)	1,000–2,000 CFM
Medium spaces (250–500 sq. ft.)	2,000–4,000 CFM
Large halls/industrial areas	5,000–10,000+ CFM

3. In Indian cities with water scarcity, choose models with efficient water management, because water is the lifeblood of evaporative cooling. Look for features like large tank capacity, auto-drain options, and water level sensors.

4. Maintenance & Durability

1. Always choose honeycomb cooling pads, as they last longer than traditional aspen pads.
2. For construction material, prefer stainless steel for durability and plastic for affordability

5. Always ask for a demo or airflow test before purchase, and check whether the brand offers local service support to ensure hassle-free maintenance.

Recent Blogs

• Importance of Proper Ventilation in Commercial Kitchens
• Why Desert Coolers Fail in Big Spaces and How Central Air Cooling Solves This
• How PM2.5 and PM10 Impact Your Lungs
• Top 3 Commercial & Industrial Coolers
• Which HVAC System Suits Your Industry? A Complete Guide for Every Sector

Imagine walking into a factory in Indore on a 45 °C summer afternoon. Instead of the usual hot, suffocating air, you are welcomed by a cool, refreshing breeze. No air conditioners humming in the background, no massive power bills looming, just fresh, naturally cooled air.

That’s the magic of evaporative cooling. It is not a new idea; our ancestors used wet khus mats (vetiver grass) and earthen pots for cooling, but today, the same principle is powering modern, energy-efficient HVAC systems across India. And in hot, dry regions like Rajasthan, Gujarat, and Madhya Pradesh, it is proving to be a game-changer.

How It Works (The Simple Science)

Think about how you feel when sweat evaporates from your skin; it cools you instantly. Evaporative cooling uses that exact principle.

Hot outside air is pulled through water-soaked cooling pads. As the water evaporates, the air temperature drops, and a fan circulates that cool, fresh air indoors. The drier the air, the stronger the effect, making it perfect for much of India’s climate.

Why It is Perfect for Indian Climates

In cities like Jodhpur, Jaipur, Indore, and Nagpur, summers are long, hot, and dry. Here, evaporative cooling can reduce indoor temperatures by 12–20 °C, making warehouses, factories, gyms, banquet halls, auditoriums, hospitals, malls, showrooms, hotels, places of worship, schools, and homes comfortable without consuming massive amounts of electricity

See Our Case Study Videos: https://www.instagram.com/degreeday

Unlike air conditioners, which recycle the same stale air, evaporative coolers deliver 100% fresh outdoor air, a big plus for health in crowded workplaces and schools.

Benefits of Indian Businesses & Homes Love

1. Huge energy savings – Up to 80 to 90% less electricity than ACs, keeping power bills under control.
2. Lower investment – Easy to install and maintain; no complex refrigerants or compressors.
3. Eco-friendly – Just water and air—no harmful gases, no ozone damage.
4. Better indoor air quality – Fresh, filtered air improves comfort, reduces dust, and adds healthy humidity.
5. Boosts productivity – Comfortable workers mean fewer absentees and higher efficiency.

For industries like textiles in Surat, auto manufacturing in Pune, or warehouses in Delhi NCR, factories in Lucknow, these savings directly improve the bottom line.

Challenges to Keep in Mind

• Works best in dry regions; less effective in humid states like Kerala or Bengal.
• Needs a steady water supply, which can be a concern in drought-prone areas.
• Requires regular cleaning of pads and tanks to prevent scaling or bacterial growth.
• Adds some humidity, which may not suit all indoor environments.

But for much of central, western, and northern India, the benefits far outweigh the limitations.

Where It is Being Used in India

1. Factories & warehouses – Keeping workers cool at a fraction of AC costs.
2. Textile & garment units – Maintaining temperature control without damaging fabrics.
3. Agriculture & poultry farms – Creating the right environment for plants and livestock.
4. Educational institutions – Affordable comfort for schools and colleges.
5. Retail & commercial spaces – Especially in Tier-2 and Tier-3 cities, where energy costs are a concern.
6. Event venues – Large outdoor fans are common in wedding halls, pandals, and stadiums.

The Road Ahead for India

With rising electricity costs and government pushes toward energy efficiency, evaporative cooling is gaining attention as a sustainable HVAC solution. Innovations like solar-powered coolers, smart controls, and hybrid models are making the technology even more reliable for Indian conditions.

As India faces longer, harsher summers, this eco-friendly alternative to ACs will play a vital role in keeping people comfortable, cutting costs, and reducing carbon footprints.

Evaporative cooling is more than just a cost-saving option. It is a climate-smart solution designed for India’s toughest summers. Whether you are running a factory in Rajasthan, a warehouse in Madhya Pradesh, or even a school in Gujarat, this technology offers comfort, savings, and sustainability all in one package.

At Degree Day Pvt. Ltd., we design and deliver evaporative cooling solutions tailored for Indian industries, homes, and climates. If you are ready to cut electricity costs and keep cool naturally, let’s make it happen.

Recent Blogs

• Importance of Proper Ventilation in Commercial Kitchens
• Why Desert Coolers Fail in Big Spaces and How Central Air Cooling Solves This
• How PM2.5 and PM10 Impact Your Lungs
• Top 3 Commercial & Industrial Coolers
• Which HVAC System Suits Your Industry? A Complete Guide for Every Sector