Meyer + Meyer AG

We are here for you!
We are a competent and well-coordinated team specializing in sanitary and heating technology.

You are the discerning customers who need an installation or want a beautiful new bathroom or a new, modern heating system.

Our qualified employees will be happy to advise and support you in planning your heating, plumbing, or solar system in new and old buildings.

Bathrooms

• Fittings
• Washbasins
• Bathroom furniture
• Accessories
• Toilets
• Cisterns
• Bathtubs
• Showers
• Partition walls
• Wellness
• Barrier-free bathroom design

Meyer & Meyer Plumbing + Heating Zurich Oerlikon Central vacuum cleaners

Centrally installed systems (central vacuum cleaners or house vacuum systems) consist of a suction unit that is installed in a fixed location (usually in the basement or garage). From there, a pipe system is laid throughout the house, to which the suction pipe with the brush head is connected via a hose. Dust can be removed directly using dustpans instead of a dustpan and brush. After being cleaned in a cyclone filter or lamella filter, the sucked-in air is usually blown out of the house. There is no unpleasant smell, as is the case with conventional vacuum cleaners, due to the turbulence of the exhaust air in the room, which is particularly advantageous for people who are allergic to fine dust. The noise level of such a device is correspondingly low, and the overall energy balance is also slightly better than that of handheld vacuum cleaners. This design is already around 100 years old, but has only become established in certain regions. These include the Scandinavian countries and North America. Central vacuum cleaners usually last longer than handheld vacuum cleaners, so care must be taken to install and maintain the system properly. When planning a central vacuum system, care must be taken to ensure that it is suitably combined with a ventilation system.

This article is based on the article Vacuum cleaner from the free encyclopedia Wikipedia and is licensed under the dual license GNU Free Documentation License and Creative Commons CC-BY-SA 3.0 Unported (short version). A list of authors is available on Wikipedia.

Meyer & Meyer Plumbing + Heating Zurich Oerlikon Solar systems

Thermal solar systems – such as flat solar collectors and vacuum tube collectors – can be used to heat drinking water (shower and bath water) and to generate heat for space heating and, for example, cooking (process heat). A specially coated absorber surface inside a so-called thermal "collector" is heated by electromagnetic solar radiation in the visible and infrared range of the spectrum. A liquid, or in rare cases a gas (e.g., air), flows through the pipes of the absorber and absorbs this heat (heat transfer medium). This medium is fed to a storage tank by means of a pump or fan – sometimes simply by the buoyancy of the heat – where it is cooled and returned to the inlet of the absorber (circuit). In Central Europe, thermal solar systems can usually cover 50 to 60 percent of the energy required for heating drinking water, depending on the region.[1] Higher contribution margins and use in building heating technology are also possible. The solar thermal system can support the heating system, but the contribution margin depends on various boundary conditions (demand, storage, medium, etc.). Swiss engineer Josef Jenni demonstrated what is possible in the Oberburg Solar House project as early as 1989: with the appropriate investment, it is possible to cover 100 percent of the heating requirements of a single-family home with solar energy, and this can also be achieved with a multi-family home. Furthermore, thermal solar systems can be used to generate process heat in industry and commerce. In the food industry in particular, there are many applications for which the necessary temperatures of 60 to 100 °C can also be generated with collectors. Domestic use (solar cookers) is uncommon in Europe, but has been implemented in a number of projects in Africa and India. The supply of district heating networks with solar energy is now widespread in Denmark, Sweden, and Austria. Special collectors for large-scale systems are used to supplement conventional energy supplies with solar energy in around 100 towns and villages. In many small networks, solar heat replaces biomass boilers in the summer. But there are also notable initiatives in urban areas, such as in Graz. Another area of application is the provision of cooling (solar air conditioning). Refrigeration machines powered by heat from collectors use solar energy particularly efficiently, as the highest cooling demand coincides with the strongest solar radiation. There are now over a hundred model plants for research and demonstration, and large commercial projects have also been implemented in recent years. The most prominent installations are located in Qingdao, China, in the Olympic Sailing Village for 2008, at the Renewable Energy House in Brussels, in Lisbon at the main building of Caixa Geral de Depósitos, currently the largest solar cooling system in the office sector worldwide, and in Priština, Kosovo, at the building of the European Agency for Reconstruction of Kosovo.

This article is based on the article "Thermal solar systems" from the free encyclopedia Wikipedia and is licensed under the dual license GNU Free Documentation License and Creative Commons CC-BY-SA 3.0 Unported (short version). A list of authors is available on Wikipedia.

Meyer & Meyer Sanitär + Heizung Zurich Oerlikon Heat pumps

The heat pump extracts heat from a reservoir (air, groundwater, soil) and thus cools the heat source. As long as the absolute temperature of the source is above absolute zero of –273.15 °C, heat can be extracted from the source, but only along a temperature gradient. However, the efficiency of the heat pump—expressed in terms of its coefficient of performance—decreases as the temperature of the source decreases. The heat pump is technically constructed like a refrigerator, with the difference that in a heat pump, the warm side (the heat pump's condenser) is used for heating. The lower the desired temperature difference between the heat reservoir (e.g., groundwater at 7 °C) and the "flow temperature" (= "heating flow" = the temperature at which the water is fed into the heating circuit), the more efficient the system is. As the temperature difference increases, the coefficient of performance of the heat pump decreases. Most heat pumps are designed for flow temperatures up to a maximum of 60 °C. Heat sources for heat pumps are water, moist soil, or moist air. If the evaporation temperature falls below 0 °C, ice forms on the heat exchanger surfaces. Ice is an insulating layer and significantly impairs heat transfer. Thanks to newer technologies (gas cooling), heat pumps that extract heat from the outside air can currently be used effectively at outside temperatures as low as –25 °C (see section on refrigerants; example: Mitsubishi).[1] A heat pump that extracts heat from a water reservoir at a depth of 10 m (approx. 5 °C ground temperature) can be operated independently of the outside temperature (below the freezing point of water, because ice is lighter than water and therefore floats on the surface). Energy must be applied ("input") to generate heat. The ratio of energy yield ("output") to input is called the coefficient of performance. A coefficient of performance greater than 4 is considered economical. This energy can be supplied by electricity or gas. During combustion, the gas can drive an absorption or adsorption refrigeration machine or be used in an engine that, like an electric motor, drives a compression refrigeration machine.

This article is based on the article Heat pump from the free encyclopedia Wikipedia and is licensed under the dual license GNU Free Documentation License and Creative Commons CC-BY-SA 3.0 Unported (short version). A list of authors is available on Wikipedia.