Standard function


Thermal performance testing for solar air collector; Pressure drop test; Time constant test; Visual inspection; Internal pressuretest; Rupture or collapse test; Stagnation temperature; Exposure test; Externalthermal shock; Internal thermal shock; Rain penetration; Freeze resistance; Mechanical load; Impact resistance test using steel ball; Final inspection. All above listed tests of the standard EN12975-1:2006+A1:2010 and ISO 9806:2017 were passed successfully in accordance with the criteria.


The Solar Keymark is a voluntary third-party certification mark for solar thermal products, demonstrating to end-users that a product conforms to the relevant European standards and fulfills additional requirements. It is widely spread across the European market and beyond. The Solar Keymark is a quality label.

2-in-1 function

PRODUCT DESCRIPTION
Dec 20 2021 0 Comments DAllan

PRODUCT DESCRIPTION

Read the details:  Product-description OS10/OS20/OS30:    Heating outdoor fresh air: available in spring, autumn and winter. OS22/OS32/OS42:  2-in-1 function Heating outdoor fresh air: suitable for all models. Heating indoor air circularly mold:...

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Hohe Solarsubventionen von BAFA in Deutschland
Apr 14 2021 0 Comments AlanDong

Hohe Solarsubventionen von BAFA in Deutschland

Hohe Solarsubventionen von BAFA in Deutschland : Neue Politik im Jahr 2021Die gute Nachricht vorweg: Für OS22/32/42, Bundesförderung für effiziente Gebäude – Einzelmaßnahmen“ einen Zuschuss in Höhe von 30 % der anrechenbaren Kosten erhalten.Die we...

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New Arrival ! Felt Cover Solar Air Heater
Jun 17 2020 1 Comments alan dong

New Arrival ! Felt Cover Solar Air Heater

The special felt heater can be spliced ​​with aluminum alloy collector (OS20/22/30/32) and installed on a flat roof or wall. The air goes through the black felt gap (air intake volume remains unchanged) can efficiently absorb the heat of the sun, ...

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EUR140! High Subsidy for Solar air heater in Germany
Oct 21 2018 0 Comments alan dong

EUR140! High Subsidy for Solar air heater in Germany

High solar subsidy for OS22,OS32,OS42 in GermanyFor OS22, OS32, OS42, you can receive the basic subsidy of EUR 140.00 per square meter gross collector area. The application for the models is quite simple and can be done online.Important: The appli...

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How Solar heater works for you
Oct 15 2018 0 Comments alan dong

How Solar heater works for you

https://nakoair.net/pages/functions The sun shines on the Special heating absorption board and the surrounding air absorbs heat. Nakoair® solar air collector/heater operates by taking in air at the bottom of panels, and through a special construc...

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Advantage of Nakoair® Solar Air Heater
Sep 27 2018 2 Comments AlanDong

Advantage of Nakoair® Solar Air Heater

1. Unique feature: Indoor air internal circulation mode:  heating indoor air internal circularly. Applicable to OS22/32/42. Heating indoor air mode, can keep heating the room air, and keeps away from any wet or cold or smog air. When people at ho...

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