Report • 01.12.2011

Fresh air is very welcome, but no drafts please

Customers and employees should feel comfortable in stores and specialty shops

Regional building regulations determine requirements for air ducts, air pipes...
Regional building regulations determine requirements for air ducts, air pipes and fire traps. © Hafner-Muschler

While the ambiance, the showcased merchandise and the lighting catch someone’s eye, climate technology happens behind the scenes. Not until something is not working right, do you notice it: it gets too hot or too cold, people complain about drafts, the lack of fresh air or irritating noises.

Heating and cooling are important cost drivers in business. Die EHI Retail Institute study “Energy Management in Retail 2010“ (“Energiemanagement im Einzelhandel 2010“) revealed that in the food retail industry over 55 Euros per square meter of sales floor are incurred by energy, of which cooling costs at 44 percent cause the largest electricity consumption. In non-food retail on average only 31 Euros per square meter of sales floor need to be drummed up for energy. The largest portion at 65 percent is caused by lighting costs.

According to the EHI Retail Institute, retail‘s willingness to invest has most profoundly changed in the areas of building services engineering and construction. Just short of 28 percent of surveyed retailers were willing to invest in 2008, whereas in 2010 at just under 53 percent that number nearly doubled. An energetically optimized building, innovative building services engineering or the use of regenerative energies provide for high energy- and ecological efficiency and are therefore the starting point in energy optimization for many companies. In non-food retail, even longer amortization periods of up to five years and more are being accepted in these cases.

Property managers know: While heating is expensive, cooling is even more expensive. Yet the customers are supposed to feel comfortable and should gladly want to come back to the store and employees should jauntily be able to perform their tasks. Heating and cooling engineers are in demand, because at the supermarket, in the fashion store, at the specialty shop or department store you cannot just quickly open a window like you do at home to get some fresh air in. Heating and cooling engineers differentiate between ventilation and air conditioning with air ventilation through outdoor air, from equipment that circulates ambient air without ventilation function.

Air from outside – necessary and difficult

One important gateway for outside air is the entrance. For grocery discount supermarkets, lobbies with two successive doors have stood the test of time. Fashion boutiques like to keep their clothing articles visible towards the entrance of the store even during the cold season, so passersby will find their way into the shop easier. Here air surge equipment is being used, which creates a hot-air curtain that keeps the cold outside air outside. Admittedly, critics deplore the high energy expenditure.

At home you know how annoying drafts are. Drafts arise if differences in air pressure are abruptly equalized. The causes for drafts are differences in temperature or air humidity. The larger the building, the more wind conditions also play a role. Luv and Lee – upwind or downwind – they cause pressure differences. Solar radiation as well as cooling down of glass facades during freezing temperatures also has an effect on indoor temperature. And of course heating also impacts the air ratio. People add to all this as well. The pyramids in Egypt have kept the rich coloring of their mural paintings over millenniums, but are now threatened by the increasing air moisture from visitors’ breathing. In retail, the number of guests often fluctuates even during the course of the day. Ventilation technology needs to balance all this.

Many factors affect indoor temperature

What ordinary people usually don’t know: “Bad air“ is not caused by a lack of oxygen, but primarily by an elevated CO2-concentration. Chemist and founder of modern hygiene Max von Pettenkofer discovered this in the year 1858. The outer air contains 0.03 volume percent CO2. A person exhales air with a CO2 concentration of about 4 volume percent. Without the exchange of new outside air, the CO2 concentration in inhabited rooms would quickly increase. While an elevated CO2 concentration is not immediately posing a risk to health, it nonetheless results in fatigue, indisposition, concentration difficulty and headaches.

While heating elements in private households are often located under the windows, in retail shop windows should remain clear for decorations. What’s more, the sales floor is normally too large to be only heated from the perimeters inward. That’s why oftentimes you heat and ventilate through the ceiling. Heat however rises to the top, so that floor heating is more effective. In a EuroShop interview, Jan Kröger, Managing Director of heating and cooling company Hafner-Muschler, advocates concrete core tempering for new buildings. ”The great thing about it is the low flow temperature of the heating system. “

Often the store layout causes additional problems for heating and cooling engineers. Store aisles interfere with free air circulation and the cooler air from the produce section or open deep freezer cabinets or multi-deck refrigerated cabinets whirl the warm ambient air around. The merchandise also has an impact. While fragrances from the drugstore shelves might be pleasant, solvent particles from the home improvement area or impregnated textile odors are certainly not.

Regional building regulations determine requirements for air ducts, air pipes and fire traps. In the event of a fire it must be prevented for smoke and flames to cross over to other parts of the building. Ventilation systems don’t operate silently; engineering standards also apply here. Ventilation lines primarily create whistling and hissing sounds through air friction and swirling on structural parts. Due to intake and exhaustion of air, dust, bacteria and viruses can accumulate in the ventilation system. Filters and meticulous maintenance are essential.

Fragrance – a new trend

Still a young chapter in climate technology is fragrance marketing. Scents are subconsciously noticed and affect the brain at lightening speed. The aroma of bread makes you hungry, while the scent of leather appears classy. The use of fragrance however is controversial, since critics fear consumer manipulation. Yet wherever fragrance diffusers are being used, heating-and cooling engineers will again be in great demand. And once again it will be just like it always is in their business: hardly anybody notices if all goes well.

René Schellbach, First Publication: EuroShop.de

related articles:

popular articles:

Thumbnail-Photo: One, two, go: get a new shop window!
27.02.2019   #shop decoration #brand management

One, two, go: get a new shop window!

Magnetic films make it possible

Redecorating an entire shop window in 30 seconds? Yes, that's possible! At the Panorama in Berlin we saw exactly that at the booth of the Pioneer Trading Company. The principle is simple: magnetic films with all kinds of motifs can be ...

Thumbnail-Photo: Expert tips: the best flooring options for your retail store...
15.04.2019   #shop building #visual merchandising

Expert tips: the best flooring options for your retail store

Ways to make a great first impression with customers

You need a new look for the flooring in your store – you have many options and they must be considered carefully. Industry experts told us what the different types of flooring from vinyl to carpet all the way to renovation lacquer systems have ...

Thumbnail-Photo: Retail holiday decorations: trends for the 2019/20 season...
09.05.2019   #decorative lighting #shop decoration

Retail holiday decorations: trends for the 2019/20 season

"The little affectionate details are always what’s most important." Interview with Annetta Palmisano

Many details or a simple design, artificial light displays or natural light – there are many ways to showcase window displays. Retailers who decorate with a light touch can use the emotional impact on customers and affect retail business ...

Thumbnail-Photo: Power floor: power store
27.03.2019   #pos marketing #in-store marketing

Power floor: power store

Practical examples of amazing flooring designs

Sales promotion is also a matter of the floor. Take the time for some inspiration and discover different designs - from colorful and patterned to natural and neutral - in practical examples that we have put together for you. All projects can also be ...

Thumbnail-Photo: Snipes Reopening in Cologne: Shopdesign goes Hip-Hop...
31.01.2019   #digital signage #shop building

Snipes Reopening in Cologne: Shopdesign goes Hip-Hop

At the end of last year, the Snipes Store on Hohe Strasse in Cologne was reopened.

We attended the pre-opening and were privileged to see the new design in the first customer's eyes. Have fun with the video report!Your iXtenso team ...

Thumbnail-Photo: What shop design can look like: Marktscheune in Berghaupten...
18.03.2019   #shop building #brick and mortar retail

What shop design can look like: Marktscheune in Berghaupten

Many wooden design elements, rustic flair, and the Farmer’s Café delight guests

Buy a piece of cake, have a cup of coffee and pick up some fresh vegetables and fruits to take home. Customers can run all of these errands at the Marktscheune (English: Market Barn). The so-called Naturpark-Bauernmarkt (English: Nature Park ...

Thumbnail-Photo: Presentation of goods for convenience at gas stations...
28.02.2019   #product presentation #automated replenishment (software)

Presentation of goods for convenience at gas stations

POS TUNING and ARAL report on a successful multi-partner project

At this year's Annual Conference on Trade and Change in Gas Stations and Convenience Shops, Kristin Kolbe-Schade from POS TUNING and Carsten Biermann from Aral reported on a successful tobacco project which they implemented together with other ...

Thumbnail-Photo: ISE: big LED displays, digital mirrors and more!...
07.02.2019   #digital signage #decorative lighting

ISE: big LED displays, digital mirrors and more!

The trends of tomorrows audiovisuals and system integrations

iXtenso was at the ISE in Amsterdam and looked around for the latest trends in audiovisual media. We couldn't help but to take snapshots of some of the most beautiful implementations. ...

Thumbnail-Photo: Show your costumers instant digital content on mirrors...
07.02.2019   #digital signage #brick and mortar retail

Show your costumers instant digital content on mirrors

Mirror mirror on the wall, who's the smartest of them all?

In the interview Jukka Vänskä from Seloy Live is showing us, what customers can do with a digital mirror and why it could benefit retailers. His partner Alexander von Reuterhorn from Fineko Green Technologies ensures a bacteria-free ...

Supplier

Pioneer Trading Company GmbH
Am Sohlweg 26
76297 Stutensee
POS TUNING Udo Voßhenrich GmbH & Co KG
POS TUNING Udo Voßhenrich GmbH & Co KG
Am Zubringer 8
32107 Bad Salzuflen