5 tips for the start of the heating season

October 9, 2019
Autumn is here, which means the days and nights are getting colder. And that means it’s time to make sure your home is warm and snug. Get your heating system ready for the start of the season with these tips.
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Saving energy on a grand scale

July 30, 2019
Today, many companies place great value on energy-efficient, environmentally-friendly production methods – both as a matter of principle and in order to meet the legal requirements with respect to environmental compatibility and healthy working conditions.
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Residential ventilation - investment in quality of life

July 23, 2019
Houses today are built to be more airtight than ever before. Without a regular exchange of air, we quickly find ourselves in stuffy homes. This is neither pleasant nor healthy. Residential ventilation provides the remedy.
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Instead of air-conditioning, why not use a heating pump to cool your building?

June 12, 2019
More and more homes now feature cooling systems. When we talk about cooling systems, most people think of air-conditioning. However, not many people know that heat pumps can also be used to cool living spaces – or that they are an energy-saving, eco-friendly option.
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Which heat pump suits me best?

June 6, 2019
Heat pumps have become established as a sustainable heating solution. So that you can find the right heat pump for your building project, we want quickly to run through the most important information on the three most common types.
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5 Hoval heating tips for saving energy

March 1, 2019
With a few easy tips, you can sustainably reduce your own energy consumption and your heating costs at the same time. So do something good for the environment as well as your wallet.
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9 Answers about solar thermal energy

February 7, 2019
Using free and sustainable solar energy – an excellent reason to choose an economical, environmentally friendly system like this one. But when is solar thermal suitable for one's own use and what needs to be taken into account? Hoval provides answers.
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DIN EN ISO 16890 determines filter performance according to fine dust fractions

January 15, 2019
The standard DIN EN ISO 16890 "Air filters for general ventilation", which has been valid worldwide since July 2018, marks a new development stage in the standardized process for testing and classifying filter classes G, M and F. The new process provides significantly more reliable data on the actual...
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Photovoltaics and Solar Thermal Energy: Free Energy from the Sun

December 18, 2018
Photovoltaics and solar thermal energy are technical processes for extracting energy from radiation. Both heat and electricity can be understood as solar energy. But what are the differences and how do solar systems work?
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RoofVent® and TopVent® with heat pump, the energy-saving champions

August 6, 2018
Decentralised systems for ventilation, heating and cooling large halls have proved themselves in practical applications alongside centralised systems due to their excellent ability to adapt to the many and varied prevailing ventilation requirements. Hoval has been manufacturing decentralised climate...
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Does your heating need some care and attention?

April 3, 2018
Winter is coming to an end, the days are getting longer and warmer, and your heating is on less – now is the perfect time for a service. A regular service reduces your energy consumption and ensures that your heating will keep you nice and warm again next winter without problems.
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What is the significance of the CE marking and the declaration of incorporation for HVAC units? What you need to know.

February 16, 2018
The CE marking represents a confirmation from the manufacturer of a product, stating that – in accordance with EU Regulation 765/2008 – the product fulfils the fundamental requirements of the directives that apply to it. It is not a seal of quality.
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Comfort ventilation: just a hype or absolute necessity?

January 18, 2018
Hardly any new residential building can do without controlled ventilation: As a rule, new buildings are so well insulated for energy reasons that there is no spontaneous exchange of air. However, comfort ventilation also makes sense for existing houses.
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Who and what causes mildew, and how can you prevent it?

January 18, 2018
Mildew does not only occur in old walls. Mildew can also strike in new buildings. Where there is moisture, the furry fungus can sprout. Are the inhabitants to blame for not airing out the building enough? Architects who plan incorrectly? Or negligent craftsmen?
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Requirements of the ErP Directive on HVAC systems. What you need to know.

December 19, 2017
When one starts to get to grips with the requirements of the Ecodesign Directive with regard to HVAC systems, one encounters a plethora of regulations.
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How can hotels and hospitals reduce their power and heating costs?

November 13, 2017
Hotels, hospitals and nursing homes consume huge amounts of energy. Programmes are used to keep consumption under control, and energy efficiency is the top priority when it comes to investment decisions.
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Busting the myths surrounding heat pumps

October 23, 2017
Heat pumps are more in demand than ever before: they supply heat efficiently and are environmentally friendly. Nevertheless, the more popular they become, the more quickly myths spread concerning their characteristics and operation. In this article, we’re going to straighten things up.
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Central or decentralised hall ventilation? A guide to help you decide

July 7, 2017
When is central hall ventilation the better choice, and when should decentralised ventilation be used? This neutral comparison by Dipl.-Ing. Jürgen Dorenburg looks at technical aspects, customer benefits and financial considerations.
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Calculating the supply air flow with the help of the load calculation – what you need to know.

May 29, 2017
The purpose of a hall ventilation system is to distribute supply air by means of a controlled and therefore calculable indoor air flow in order to dissipate heat loads and pollutant loads. There are various types of air guidance system which can perform this task. A design procedure is therefore required which makes it possible to assess the potential air guidance systems and select the best one for the requirements in question.
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Pollution in the working area – what you need to know.

March 14, 2017
Pollution in the working area depends on the air flow concept as well as the type, arrangement and magnitude of the heat loads; beyond that, it depends on the type and arrangement of the air outlets. For example, pollution levels up to 100% with mixed ventilation can be reduced to below 10% using alternative air flow patterns.
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