--- title: The Swegon Blog | www.swegon.com | Alberto Ferrandi description: Alberto Ferrandi is product manager for cooling and heating products at Swegon. Alberto has a wide experience in HVAC products and renewable energy and has a number of blogs about cooling and heating as well as energy efficiency. image: https://blog.swegon.com/hubfs/Assets/img/sharing_image_swegon.png --- [![](https://www.swegon.com/Static/img/logo.svg?v=3)](https://www.swegon.com/) Menu - [Solutions & services](https://www.swegon.com/solutions-and-services/) - [Products](https://www.swegon.com/products/) - [References & Insights](https://www.swegon.com/references-and-insights/) - [Support & software](https://www.swegon.com/support/) - [Sustainability](https://www.swegon.com/sustainability/) - [Why Swegon?](https://www.swegon.com/why-swegon/) - [Product Search](https://www.swegon.com/product-search-result/) - [Document Search](https://www.swegon.com/support/find-documents/) - [Career](https://www.swegon.com/career/) - Global - [Contact](https://www.swegon.com/contact/) ## Choose a market [Or visit our global site](https://www.swegon.com) - [Belgium - French](https://www.swegon.com/fr-be/) - 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[Sustainability (24)](https://blog.swegon.com/en/tag/sustainability) - [Energy Efficiency (23)](https://blog.swegon.com/en/tag/energy-efficiency) - [Room Units (21)](https://blog.swegon.com/en/tag/room-units) - [Heat Pumps (12)](https://blog.swegon.com/en/tag/heat-pumps) - [Acoustics (9)](https://blog.swegon.com/en/tag/acoustics) - [Optimisation Systems (9)](https://blog.swegon.com/en/tag/optimisation-systems) - [Services & Connectivity (8)](https://blog.swegon.com/en/tag/services-connectivity) - [Humidity (7)](https://blog.swegon.com/en/tag/humidity) - [Renovation (6)](https://blog.swegon.com/en/tag/renovation) - [Schools (4)](https://blog.swegon.com/en/tag/schools) - [Software (4)](https://blog.swegon.com/en/tag/software) - [BIM (3)](https://blog.swegon.com/en/tag/bim) - [Gender Equality (3)](https://blog.swegon.com/en/tag/gender-equality) - [Air Quality (2)](https://blog.swegon.com/en/tag/air-quality) - [Residential (1)](https://blog.swegon.com/en/tag/residential) \> Fler ### By authors - [![Alberto Ferrandi](https://blog.swegon.com/hs-fs/hubfs/Bild%20alberto.png?width=75&name=Bild%20alberto.png) Alberto Ferrandi 6](https://blog.swegon.com/en/author/alberto-ferrandi) - [![Alberto Frison](https://blog.swegon.com/hs-fs/hubfs/alberto.jpg?width=75&name=alberto.jpg) Alberto Frison 2](https://blog.swegon.com/en/author/alberto-frison) - [![Alessandro Lora](https://blog.swegon.com/hs-fs/hubfs/lora.webp?width=75&name=lora.webp) Alessandro Lora 3](https://blog.swegon.com/en/author/alessandro-lora) - [![Alessandro Pinato](https://blog.swegon.com/hs-fs/hubfs/alessandro.webp?width=75&name=alessandro.webp) Alessandro Pinato 9](https://blog.swegon.com/en/author/alessandro-pinato) - [![Anders Jakobsson](https://blog.swegon.com/hs-fs/hubfs/Anders%20Jacobsson_4.jpg?width=75&name=Anders%20Jacobsson_4.jpg) Anders Jakobsson 3](https://blog.swegon.com/en/author/anders-jakobsson) - [![Andreas Söderholm](https://blog.swegon.com/hs-fs/hubfs/andreassoderholm.webp?width=75&name=andreassoderholm.webp) Andreas Söderholm 1](https://blog.swegon.com/en/author/andreas-söderholm) - [![Andreas Örje Wellstam](https://blog.swegon.com/hs-fs/hubfs/andreas-orje-wellstam.webp?width=75&name=andreas-orje-wellstam.webp) Andreas Örje Wellstam 5](https://blog.swegon.com/en/author/andreas-örje-wellstam) - [![Anna Sundell](https://blog.swegon.com/hs-fs/hubfs/Anna.jpg?width=75&name=Anna.jpg) Anna Sundell 1](https://blog.swegon.com/en/author/anna-sundell) - [![Bastien Stocq](https://blog.swegon.com/hs-fs/hubfs/Bastien.png?width=75&name=Bastien.png) Bastien Stocq 1](https://blog.swegon.com/en/author/bastien-stocq) - [![Björn Erlingsson](https://blog.swegon.com/hs-fs/hubfs/bjornerling.png?width=75&name=bjornerling.png) Björn Erlingsson 1](https://blog.swegon.com/en/author/björn-erlingsson) - [![Börje Lehrman](https://blog.swegon.com/hs-fs/hubfs/Blog%20Authors/SE-SV%20-%20PRO%20-%20BACV/B%C3%B6rje_Lehrman.jpg?width=75&name=B%C3%B6rje_Lehrman.jpg) Börje Lehrman 3](https://blog.swegon.com/en/author/börje-lehrman) - [![Caroline Jacobsson](https://blog.swegon.com/hs-fs/hubfs/Blog%20Authors/Caroline%20Jacobsson.jpg?width=75&name=Caroline%20Jacobsson.jpg) Caroline Jacobsson 9](https://blog.swegon.com/en/author/caroline-jacobsson) - [![Elvis Kokot](https://blog.swegon.com/hs-fs/hubfs/elviskokot.png?width=75&name=elviskokot.png) Elvis Kokot 1](https://blog.swegon.com/en/author/elvis-kokot) - [![Fabio Polo](https://blog.swegon.com/hs-fs/hubfs/Fabio%20Polo-1.jpg?width=75&name=Fabio%20Polo-1.jpg) Fabio Polo 9](https://blog.swegon.com/en/author/fabio-polo) - [![Francesco Artusi](https://blog.swegon.com/hs-fs/hubfs/Francesco%20Artusi%20CUT.jpg?width=75&name=Francesco%20Artusi%20CUT.jpg) Francesco Artusi 1](https://blog.swegon.com/en/author/francesco-artusi) - [![François Jouvray](https://blog.swegon.com/hs-fs/hubfs/francois%20Jouvray2.jpg?width=75&name=francois%20Jouvray2.jpg) François Jouvray 1](https://blog.swegon.com/en/author/françois-jouvray) - [![Fredrik Truedson](https://blog.swegon.com/hs-fs/hubfs/Swegon%20SE%20-%20Nyheter/Fredrik%20Truedson_hs.jpg?width=75&name=Fredrik%20Truedson_hs.jpg) Fredrik Truedson 1](https://blog.swegon.com/en/author/fredrik-truedson) - [![Jan Scheuring](https://blog.swegon.com/hs-fs/hubfs/Photo_Jan-1.jpeg?width=75&name=Photo_Jan-1.jpeg) Jan Scheuring 3](https://blog.swegon.com/en/author/jan-scheuring) - [![John Wibrand](https://blog.swegon.com/hs-fs/hubfs/John%20Wibrand.jpg?width=75&name=John%20Wibrand.jpg) John Wibrand 2](https://blog.swegon.com/en/author/john-wibrand) - [![Josh Emerson](https://blog.swegon.com/hs-fs/hubfs/Josh_Emerson_Headshot.jpg?width=75&name=Josh_Emerson_Headshot.jpg) Josh Emerson 1](https://blog.swegon.com/en/author/josh-emerson) - [![Lars Norrdal](https://blog.swegon.com/hs-fs/hubfs/Blog%20Authors/SWEGON%20henkilo%E2%95%A0%C3%AAsto%E2%95%A0%C3%AAkuvat%2020190786.jpg?width=75&name=SWEGON%20henkilo%E2%95%A0%C3%AAsto%E2%95%A0%C3%AAkuvat%2020190786.jpg) Lars Norrdal 1](https://blog.swegon.com/en/author/lars-norrdal) - [![Luca Filippetto](https://blog.swegon.com/hs-fs/hubfs/Luca%20Filippetto%20Hubspot.jpg?width=75&name=Luca%20Filippetto%20Hubspot.jpg) Luca Filippetto 4](https://blog.swegon.com/en/author/luca-filippetto) - [![Luca Zordan](https://blog.swegon.com/hs-fs/hubfs/lucazordan.png?width=75&name=lucazordan.png) Luca Zordan 1](https://blog.swegon.com/en/author/luca-zordan) - [![Magnus Andersson](https://blog.swegon.com/hs-fs/hubfs/magnus%20andersson_550x550%20(1).jpg?width=75&name=magnus%20andersson_550x550%20(1).jpg) Magnus Andersson 1](https://blog.swegon.com/en/author/magnus-andersson) - [![Malin Höij](https://blog.swegon.com/hs-fs/hubfs/malinh.webp?width=75&name=malinh.webp) Malin Höij 5](https://blog.swegon.com/en/author/malin-höij) - [![Markus Schomaker](https://blog.swegon.com/hs-fs/hubfs/Dr.-Ing.%20Markus%20Schomaker_Quadratisch.jpg?width=75&name=Dr.-Ing.%20Markus%20Schomaker_Quadratisch.jpg) Markus Schomaker 2](https://blog.swegon.com/en/author/markus) - [![Martin Ottersten](https://blog.swegon.com/hs-fs/hubfs/Blog%20Authors/Martin_Ottersten.jpg?width=75&name=Martin_Ottersten.jpg) Martin Ottersten 4](https://blog.swegon.com/en/author/martin-ottersten) - [![Mike Ward](https://blog.swegon.com/hs-fs/hubfs/Michael_Ward_photo.jpg?width=75&name=Michael_Ward_photo.jpg) Mike Ward 5](https://blog.swegon.com/en/author/michael-ward) - [![Mikael Börjesson](https://blog.swegon.com/hs-fs/hubfs/Blog%20Authors/Mikael%20B%C3%B6rjesson.jpg?width=75&name=Mikael%20B%C3%B6rjesson.jpg) Mikael Börjesson 30](https://blog.swegon.com/en/author/mikael-börjesson) - [![Mirko Sauvan](https://blog.swegon.com/hs-fs/hubfs/Swegon_Mirko%20Sauvan_web_3.jpg?width=75&name=Swegon_Mirko%20Sauvan_web_3.jpg) Mirko Sauvan 2](https://blog.swegon.com/en/author/mirko-sauvan-1) - [![Nicklas Svensson](https://blog.swegon.com/hs-fs/hubfs/NicklasSvensson.png?width=75&name=NicklasSvensson.png) Nicklas Svensson 1](https://blog.swegon.com/en/author/nicklas-svensson) - [![Niklas Jacobsson](https://blog.swegon.com/hs-fs/hubfs/authorniklas.png?width=75&name=authorniklas.png) Niklas Jacobsson 2](https://blog.swegon.com/en/author/niklas-jacobsson) - [![Paola Moschini](https://blog.swegon.com/hs-fs/hubfs/forfattare.webp?width=75&name=forfattare.webp) Paola Moschini 1](https://blog.swegon.com/en/author/paola-moschini) - [![Philip Wikström](https://blog.swegon.com/hs-fs/hubfs/Philip_Andersson_pressbild_small_webb.jpg?width=75&name=Philip_Andersson_pressbild_small_webb.jpg) Philip Wikström 4](https://blog.swegon.com/en/author/philip-wikstrom) - [![Robert Siverby](https://blog.swegon.com/hs-fs/hubfs/MicrosoftTeams-image%20(3)-4.png?width=75&name=MicrosoftTeams-image%20(3)-4.png) Robert Siverby 1](https://blog.swegon.com/en/author/robert-siverby) - [![Stefan Lay](https://blog.swegon.com/hs-fs/hubfs/1517033472060.jpg?width=75&name=1517033472060.jpg) Stefan Lay 1](https://blog.swegon.com/en/author/stefan-lay) - [![Swegon](https://blog.swegon.com/hs-fs/hubfs/swegsw-1.png?width=75&name=swegsw-1.png) Swegon 3](https://blog.swegon.com/en/author/swegon) - [![Timo Schreck](https://blog.swegon.com/hs-fs/hubfs/Timo%20Schreck.jpg?width=75&name=Timo%20Schreck.jpg) Timo Schreck 2](https://blog.swegon.com/en/author/timo-schreck) - [![Tobias Nordström](https://blog.swegon.com/hs-fs/hubfs/TobiasNordstromPHOTO.jpg?width=75&name=TobiasNordstromPHOTO.jpg) Tobias Nordström 5](https://blog.swegon.com/en/author/tobias-nordström) - [![Tomi Laakso](https://blog.swegon.com/hs-fs/hubfs/Blog%20Authors/TomiLaakso.jpg?width=75&name=TomiLaakso.jpg) Tomi Laakso 1](https://blog.swegon.com/en/author/tomi-laakso) - [![Tony Olsson](https://blog.swegon.com/hs-fs/hubfs/Tony%20Olsson.webp?width=75&name=Tony%20Olsson.webp) Tony Olsson 6](https://blog.swegon.com/en/author/tony-olsson) - [![Tony Pettersson](https://blog.swegon.com/hs-fs/hubfs/tonyp.jpg?width=75&name=tonyp.jpg) Tony Pettersson 1](https://blog.swegon.com/en/author/tony-pettersson) - [![Welat Han](https://blog.swegon.com/hs-fs/hubfs/Welat%20Han.jpg?width=75&name=Welat%20Han.jpg) Welat Han 3](https://blog.swegon.com/en/author/welat-han) - [![William Lawrance](https://blog.swegon.com/hs-fs/hubfs/William2.jpg?width=75&name=William2.jpg) William Lawrance 12](https://blog.swegon.com/en/author/william-lawrance) - [![Åsa Norén-Lundh](https://blog.swegon.com/hs-fs/hubfs/A%CC%8Asa%20Nore%CC%81n-Lundh.webp?width=75&name=A%CC%8Asa%20Nore%CC%81n-Lundh.webp) Åsa Norén-Lundh 6](https://blog.swegon.com/en/author/åsa-norén-lundh) - [![Åse Esselius](https://blog.swegon.com/hs-fs/hubfs/%C3%85seEsseliusClose.png?width=75&name=%C3%85seEsseliusClose.png) Åse Esselius 1](https://blog.swegon.com/en/author/åse-esselius) Explore - - - [The Swegon Blog](https://blog.swegon.com/en) Subscribe Explore Share Subscribe # The Swegon blog – Everything about indoor climate Our experts at Swegon have for years shared their knowledge and skills in the format of enlightening blog posts about ventilation, heating and cooling. With different angles of approach, a wide variety of indoor climate related topics have been presented and explained with sincere engagement and broadmindedness. Below you find more than 100 blog posts, and we are constantly adding new ones, in our aspiration to build knowledge about indoor climate – within, as well as outside, the building industry. Click on the pre-set tags, or use the filter function under "Explore" to narrow down the number of posts to a selection that is relevant to your interest or that will give you new and useful insights. [![Alberto Ferrandi](https://blog.swegon.com/hs-fs/hubfs/Bild%20alberto.png?width=200&height=200&name=Bild%20alberto.png)](https://blog.swegon.com/en/author/alberto-ferrandi) [Alberto Ferrandi](https://blog.swegon.com/en/author/alberto-ferrandi) Alberto Ferrandi is product manager for cooling and heating products at Swegon. Alberto has a wide experience in HVAC products and renewable energy and has a number of blogs about cooling and heating as well as energy efficiency. ### By topics - [Indoor Climate Knowledge (56)](https://blog.swegon.com/en/tag/indoor-climate-knowledge) - [Cooling & Heating (27)](https://blog.swegon.com/en/tag/cooling-heating) - [Air Handling Units (26)](https://blog.swegon.com/en/tag/air-handling-units) - [Sustainability (24)](https://blog.swegon.com/en/tag/sustainability) - [Energy Efficiency (23)](https://blog.swegon.com/en/tag/energy-efficiency) - [Room Units (21)](https://blog.swegon.com/en/tag/room-units) - [Heat Pumps (12)](https://blog.swegon.com/en/tag/heat-pumps) - [Acoustics (9)](https://blog.swegon.com/en/tag/acoustics) - [Optimisation Systems (9)](https://blog.swegon.com/en/tag/optimisation-systems) - [Services & Connectivity (8)](https://blog.swegon.com/en/tag/services-connectivity) - [Humidity (7)](https://blog.swegon.com/en/tag/humidity) - [Renovation (6)](https://blog.swegon.com/en/tag/renovation) - [Schools (4)](https://blog.swegon.com/en/tag/schools) - [Software (4)](https://blog.swegon.com/en/tag/software) - [BIM (3)](https://blog.swegon.com/en/tag/bim) - [Gender Equality (3)](https://blog.swegon.com/en/tag/gender-equality) - [Air Quality (2)](https://blog.swegon.com/en/tag/air-quality) - [Residential (1)](https://blog.swegon.com/en/tag/residential) \+ More X Close - [Cooling & Heating](https://blog.swegon.com/en/tag/cooling-heating) - [Heat Pumps](https://blog.swegon.com/en/tag/heat-pumps) ### [Alberto Ferrandi](https://blog.swegon.com/en/author/alberto-ferrandi) ## [Heating in one step or two steps?](https://blog.swegon.com/en/heating-in-one-step-or-two-steps) To do things in one go, sounds so easy. In many cases the results of doing things in one step is equated to doing things in two steps. However, in certain situations or under certain conditions it can be advantageous, and hence preferred, to do things one after the other. A twostep approach can … - [Indoor Climate Knowledge](https://blog.swegon.com/en/tag/indoor-climate-knowledge) - [Cooling & Heating](https://blog.swegon.com/en/tag/cooling-heating) ### [Alberto Ferrandi](https://blog.swegon.com/en/author/alberto-ferrandi) ## [Polyvalent units and heat recovery is growing in colder climates](https://blog.swegon.com/en/polyvalent-units-and-heat-recovery-is-growing-in-colder-climates) In recent years, heat recovery has become an increasingly more common and desirable functionality in units for ventilation, heating and cooling (HVAC). The general idea is to recover as much as possible of the energy that has already been “spent” for heating or cooling, and use that energy again … - [Cooling & Heating](https://blog.swegon.com/en/tag/cooling-heating) ### [Alberto Ferrandi](https://blog.swegon.com/en/author/alberto-ferrandi) ## [Things to consider when choosing a heat pump for commercial buildings](https://blog.swegon.com/en/things-you-need-to-consider-when-picking-a-heat-pump-for-commercial-buildings) Choosing the right heat pump demands proper care and consideration. The variables affecting the performance and efficiency are numerous, and striking the optimal balance between application, performance and cost can be tricky. - [Heat Pumps](https://blog.swegon.com/en/tag/heat-pumps) ### [Alberto Ferrandi](https://blog.swegon.com/en/author/alberto-ferrandi) ## [What you need to know before selecting a heat pump](https://blog.swegon.com/en/what-you-need-to-know-before-you-select-a-heat-pump) Just a few years ago, chillers totally dominated the market, while the number of heat pumps sold and installed was low. Today, EU demands, new technology and focus on decreasing fossil fuel dependency has made the market for heat pumps explode. The need for getting rid of gas boilers has opened up … - [Energy Efficiency](https://blog.swegon.com/en/tag/energy-efficiency) - [Cooling & Heating](https://blog.swegon.com/en/tag/cooling-heating) ### [Alberto Ferrandi](https://blog.swegon.com/en/author/alberto-ferrandi) ## [A better way to calculate energy efficiency for polyvalent units](https://blog.swegon.com/en/a-better-way-to-calculate-energy-efficiency-for-polyvalent-units) There are several energy efficiency indexes used in the refrigeration business. However, not all of them are applicable to all types of units – specifically, there are some problems with using existing indexes for polyvalent units. But first, let us go through some of the different indexes out … - [Cooling & Heating](https://blog.swegon.com/en/tag/cooling-heating) - [Heat Pumps](https://blog.swegon.com/en/tag/heat-pumps) ### [Alberto Ferrandi](https://blog.swegon.com/en/author/alberto-ferrandi) ## [Why you should consider a 4-pipe system for cooling and heating](https://blog.swegon.com/en/why-you-should-consider-a-four-pipe-system) A traditional two-pipe system for heating and cooling may not be an optimal solution for buildings with mixed usage that combines, for instance, retails, offices and hotels. Besides, the southward side of the building facing the sun might require cooling at the same time that the northward side, in … By topics Get updates from the blog directly to your inbox. #### Get to know us - [Why Swegon?](https://www.swegon.com/why-swegon/) - [Solutions & services](https://www.swegon.com/solutions-and-services/) - [Products](https://www.swegon.com/products/) - [References & Insights](https://www.swegon.com/references-and-insights/) - [Support & Software](https://www.swegon.com/support/) - [Sustainability](https://www.swegon.com/sustainability/) #### More Swegon - [About us](https://www.swegon.com/about-swegon/) - [Our Brands](https://www.swegon.com/about-swegon/our-brands/) - [News](https://blog.swegon.com/en/news) - [For suppliers](https://www.swegon.com/for-suppliers/) - [The Swegon Blog](https://blog.swegon.com/en) - [Swegon Air Academy](https://www.swegonairacademy.com/en/) #### Subscribe to The Swegon Blog [![](https://www.swegon.com/siteassets/logos/logo.svg?v=1620107735)](https://www.swegon.com/) Swegon Group AB, JA Wettergrens gata 7, SE-421 30 Västra Frölunda, Tel +46 (0)31-89 58 00, Fax +46 (0)31-89 94 69, info@swegon.com - [Privacy statement](https://www.swegon.com/privacy-policy/) - [Cookies](https://www.swegon.com/cookies/) - [Processing personal data](https://www.swegon.com/privacy-policy/processing-personal-data/) - [![Youtube](https://www.swegon.com/Static/img/youtube.svg)](https://www.youtube.com/user/SwegonAB) - [![Linkedin](https://www.swegon.com/Static/img/linkedin.svg)](https://www.linkedin.com/company/swegon-ab/) - [![Facebook](https://www.swegon.com/Static/img/facebook.svg)](https://www.facebook.com/swegongroup)