Knowledgebase

Phasing out Freon

There has been a landslide in the prices and availability of refrigerants. The prices of HFCs have exploded and the prices of some HFOs have also increased significantly. The cause is threefold: 1. Availability of the raw materials to produce HFCs . The raw materials for HFCs, Fluorine and Fluorspar, come mainly from Mongolia and

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The new NEN1010

As of July 1, 2017, cables that are marketed for permanent installations in construction works must comply with the European CPR standard EN 50575. Polytechniek designs and installs installations that meet all the safety requirements of the building regulations. We have a BRL 6000 certificate for this, which demonstrates that we have all the required

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Get off the gas

We are moving towards a natural gas-free future. “Heat and Cold Storage” (ATES) seems to be one of the answers to the demand for climate-neutral and sustainable entrepreneurship. Recycling your own energy, as it were. Because the use of a cooling system, for example, generates heat ‘at the back’, but how do you use it

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Solutions for clean air in closed spaces

The importance of improving indoor air quality is becoming more apparent with the current corona pandemic. Increasing the ventilation rates with outside air is the general recommendation. Recirculation should be avoided. To remove or destroy contamination from recirculated air, try to maximize the outdoor air share and use mechanical air filters (HEPA or ULPA filtration)

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The Netherlands has no dangers for the boiler

The number of boilers that are never checked is considerable. A total of 430,000 boilers that are never checked. This is seven percent of all boilers in the Netherlands. This has emerged from a survey by energy supplier NLE among a thousand homeowners. Read more…… Share this article on one of the social media channels

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