Nothing lost plenty of healthy fresh air gained

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1 RENEWABLES CENTRALISED VENTILATION UNITS Nothing lost plenty of healthy fresh air gained Innovative ventilation units that offer healthy indoor air and significantly lower energy bills

2 STIEBEL ELTRON is full of energy As a family company driven by innovation, throughout product development and manufacture we maintain a clear focus on environmentally responsible, efficient and convenient building services for your home. Because we're full of energy and ready to shape the future! The future belongs to environmentally responsible and efficient building services. Since 1924 we have been developing highly efficient products and maintain a clear focus on electricity as our primary energy source. Electricity which nowadays is increasingly obtained from renewables. We rely on over 3100 employees around the world and their expertise at every stage of development from the initial design right through to the manufacture of the final product. The result efficient and innovative solutions for domestic hot water, heat, ventilation and cooling. With our extensive product range, we always have the right option to prepare your home for the demands of the future today. At our head office in Holzminden, Germany, we have also established a clear focus on green technology with the Energy Campus, our flagship project for sustainable construction which makes careful use of resources. This training and communication centre brings together high quality architecture and communication technology. And as a Plus Energy building, it generates more energy than it consumes. This is in keeping with our brand promise "Full of energy" and creates a space where the spirit of STIEBEL ELTRON can be experienced both in theory and practice.

3 Centralised ventilation units Electricity the energy source of the future Renewable energies will become the norm for the future of energy supply as more and more people recognise the benefits of green and self-generated power from renewable sources. The goal of the energy transition is independence from fossil fuels Fossil fuels are in decline on the electricity market too harmful to the climate and ever more scarce. Nowadays, alternative energies using the sun, wind and water are being used to generate green power. So it is only logical to act in good time to convert the largest energy consumer in your home the heating system to these futureproof forms of energy. As nearly 80 % of energy consumed in the home is used for heating and hot water, this makes perfect sense. So there is plenty of scope for implementing the energy transition in your own home.

4 When I m working, I don t want the room to get stuffy I like plenty of fresh air. Luckily I don t have to remember to get up and open a window because my ventilation system does everything automatically. I can breathe freely in the knowledge that I am not wasting my heating energy either!

5 Centralised ventilation units Systematic ventilation: For pleasant and healthy indoor air The better a house is insulated the fewer the natural air changes. If this situation is not alleviated by controlled ventilation, harmful effects such as the growth of mould and a rise in concentrations of pollutants could result. Experts recommend that about 40 % of the indoor air should be replaced every hour throughout an average day. Most people simply do not have the time to manage that. The solution: automatic ventilation units. Improved indoor air quality Reduction of harmful emissions Improved comfort Heating energy otherwise lost by airing through open windows is retained Energy efficient ventilation through heat recovery Building fabric protection and mould fungus prevention through controlled mechanical ventilation Beneficial for allergy sufferers Let your house breathe Moisture accumulates in every building. If it remains in the rooms themselves, it can collect as condensation on windows and walls, providing perfect conditions for mould. This poses a risk, not only to the building, but also to the health of its residents. People with allergies will be pleased to know that fully automatic ventilation units have special filters which keep pollen and dust outside. Fresh air for healthy living Fully automatic ventilation adjusts the supply of fresh air automatically according to actual humidity levels, while recovering up to 90 % of the heat that is otherwise lost through ventilation. The result of good indoor air Generally, temperatures between 19 and 23 C are felt to be comfortable in a house or apartment. For a feeling of wellbeing, the CO 2 level in the air should be as low as possible. Depending on the time of year and location, fresh outdoor air has an initial level of approximately 300 to 400 ppm. For the movement of air within a living space to be perceived as pleasant, its speed should lie between 0.1 and 0.15 m/s. In our homes, optimum humidity lies between 40 and 50 %. In heated rooms this should not sink below 30 % or rise above 60 %.

6 Centralised ventilation: For a fresh ambience throughout With centralised ventilation, a single unit handles the supply and extraction of air to/from the interior via a comprehensive ventilation system. The ventilation ducts required for this can be let into walls, concrete or suspended ceilings, the floor, or placed under a screed layer even in the open. This option is therefore particularly appropriate for new build and for comprehensive modernisation projects. Its major advantage lies in the uniform fresh air quality it delivers throughout the entire building. The energy recovered from the extract air can be used to heat the supply air. CENTRALISED VENTILATION UNITS Page 08 Page 10 Page 12 PREMIUM PLUS Model LWZ 180/280 (enthalpy) LWZ 370/170 (E) plus LWZ 100 plus RE/LI Energy efficiency class A A A Apartments detached houses Installation location Wall mounted Wall mounted Ceiling mounted Heat recovery Automatic demand-dependent ventilation Accessories available for even better air quality Combination with chimney possible

7 Centralised ventilation units Centralised extractors are also suitable for existing buildings. The construction work required is considerably reduced because one centralised unit extracts the air, whilst fresh air is supplied through decentralised supply air vents and exterior wall outlets. The energy recovered from the extract air is used for domestic hot water heating. Have we sparked your interest? For further information, see or consult your local trade partner. CENTRALISED EXTRACTORS Page 13 Page 14 Page 16 Page 17 TREND PLUS TREND LWZ 130 (enthalpy) LWZ 70 E LWA 252 (SOL) LWA 100 A A A A Ceiling mounted Wall mounted Floorstanding Wall mounted Optional

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9 Centralised ventilation units LWZ (enthalpy) Its extremely quiet operation makes the wall mounted LWZ 180/280 an excellent choice for apartments, detached houses and small commercial properties. All functions can be very conveniently operated with the FEB remote control which is available as an option. CREATING A VERY SPECIAL AMBIENCE IN THE HOME WITH THIS EXCLUSIVE VENTILATION UNIT Ensuring the right air quality and maximum efficiency at all times The enthalpy cross-countercurrent heat exchanger in the ventilation unit recovers up to 65 % of moisture and up to 90 % of thermal energy in the extract air. In the summer months, an energy efficient cooling function ensures a high level of comfort in the home. Customised sets for top energy efficiency The LWZ balance sets are equipped with components that are all optimally matched to one another. Users benefit from first class A+ energy efficiency and great value for money. Benefits for your home Quiet operation thanks to significantly reduced noise levels High heat recovery level of up to 93 % Simple, intuitive operation directly at the appliance or as an option with the FEB remote control New modern STIEBEL ELTRON design Easy filter change Heat exchanger with moisture recovery ensures an even more pleasant indoor environment (LWZ 180/280 enthalpy) PREMIUM Model LWZ 180 LWZ 280 LWZ 180 enthalpy LWZ 280 enthalpy Energy efficiency class A A A A Power consumption W Heat availability level up to % Air flow rate m³/h Height mm Width mm Depth mm Weight kg

10 LWZ (E) plus Centralised LWZ 370/170 (E) plus ventilation units come out top for performance, efficiency and ventilation comfort. They provide a pleasant ambience fully automatically in buildings ranging from detached houses to small commercial buildings. IMPRESSIVE EFFICIENCY, EXCELLENT VENTILATION COMFORT Night cooling during the summer With its integrated summer bypass function, the LWZ (E) plus automatically makes use of cooler summer nights to cool your home down to a pleasant temperature, which is both extremely comfortable and also highly efficient. Benefits for your home Automatic, demand-dependent ventilation via FEQ remote control Very quiet operation Adjusts ventilation automatically to suit demand High heat recovery level of up to 90 % Straightforward operation Model LWZ 370 plus LWZ 170 E plus Energy efficiency class A A Power consumption W Heat availability level up to % Air flow rate m³/h Height/Width/Depth mm 765/677/ /677/567 Weight kg PLUS

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12 LWZ 100 plus RE/LI The compact LWZ 100 ventilation unit achieves excellent ventilation quality and requires relatively little construction work. It is suitable for apartment buildings with a living space of up to 100 m² per residential unit. FRESH AIR TO MEET PASSIVE HOUSE STANDARDS Space saving fresh air champion As the LWZ 100 plus is installed in a suspended ceiling, it provides high ventilation comfort without taking up additional floor or wall space. That is an important advantage, particularly in smaller apartments. LWZ 100 plus Benefits for your home Space efficient ceiling mounting High levels of heat recovery for outstanding energy efficiency High living comfort thanks to optimum air quality Ideal for residential accommodation on several floors PLUS Model LWZ 100 plus RE LWZ 100 plus LI Energy efficiency class A A Power consumption W Heat availability level up to % Air flow rate m³/h Height mm Width mm Depth mm Weight kg 36 36

13 Centralised ventilation units LWZ 130 (enthalpy) The centralised LWZ 130 ventilation unit is the solution to increased comfort in every home: this model recovers not only around 90 % of the heat, but also over half of the moisture otherwise lost. Everything for an optimum room climate. BREATHE EASY Fresh air in the smallest of spaces The compact design of the LWZ 130 is suitable for apartments and detached houses with a living space of up to 130 m 2. Mounted in a suspended ceiling, this model also saves space. LWZ 130 Benefits for your home Space efficient ceiling mounting Ideal for apartments and detached houses up to 130 m 2 High living comfort thanks to optimum air quality Even more pleasant indoor air through moisture recovery Energy efficient ventilation through heat recovery More flexible installation, since a condensate drain (LWZ 130 enthalpy) is no longer required TREND Model LWZ 110 LWZ 110 enthalpy Energy efficiency class A A Heat availability level up to % Air flow rate m³/h Height mm Width mm Depth mm Weight kg 18 18

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15 Centralised ventilation units LWZ 70 E The inexpensive LWZ 70 E is a compact and efficient ventilation system for apartments. It recovers up to 90 % of the heat that would be lost with conventional ventilation. It s a major boost to home comfort. SMART APARTMENT SYSTEM FOR SUPERB AIR QUALITY Highly efficient discreet unit The compact dimensions of this ventilation unit make it ideal for installation in a top kitchen cupboard, making discreet integration into fitments easy. Benefits for your home Can be installed unobtrusively in top kitchen cupboards High heat recovery level of up to 90 % Straightforward operation TREND Model LWZ 70 E Energy efficiency class A Power consumption W Heat availability level up to % 90 Air flow rate m³/h Height mm 600 Width mm 560 Depth mm 290 Weight kg 25

16 LWA 252 (SOL) The LWA 252 (SOL) ventilation unit is doubly impressive. It provides a reliable supply of fresh air while recovering heat from the extracted stale air, which it uses for DHW heating. Ideal as an addition for buildings with 100 m² or more which already benefit from a separate heat generator. VENTILATION COMFORT AND DHW CONVENIENCE IN ONE High convenience and comfort with minimal installation work The decentralised air supply means that hardly any air ductwork is needed. Installation is therefore straightforward and easy, even in existing buildings. LWA 252 Benefits for your home Compact unit with ventilation and DHW heating functions Particularly energy efficient due to superb thermal insulation of the integral DHW cylinder Easy to retrofit in existing buildings High DHW convenience PLUS Model LWA 252 LWA 252 SOL Energy efficiency class A A DHW heating energy efficiency class (load profile), moderate climate A (XL) A (XL) Power consumption W Air flow rate m³/h Cylinder capacity l Height mm Width mm Depth mm Weight kg

17 Centralised ventilation units LWA 100 The wall mounted LWA 100 is an excellent option for apartments. This compact unit can also be integrated into existing apartments very easily. It ensures a sufficient supply of fresh air regardless of the tenant s ventilation pattern. PACKAGE OPTION FOR HEALTHY AIR AND HOT WATER 100 litres of domestic hot water at any time The heat recovered from the extract air is used to heat the 100 litres of water in the integral DHW cylinder up to 55 C. This means the ventilation unit is able to cover the DHW demand of an entire apartment. An integral booster heater covers peaks in demand. LWA 100 Benefits for your home Compact unit with ventilation and DHW heating functions Easy, separate hot water billing by means of the electricity meter Fresh air directly from outdoors Dehumidifies rooms, creating a comfortable ambience TREND Model LWA Energy efficiency class A DHW heating energy efficiency class (load profile), moderate climate A (M) Power consumption W 350 Air flow rate m³/h Cylinder capacity l 100 Height mm 1290 Width mm 510 Depth mm 510 Weight kg 65

18 Accessories DISCOVERING POSSIBILITIES Our extensive range of accessories allows all our appliances to be adjusted to your personal requirements for tailor-made convenience. These adaptations can range from the control unit of a single appliance to a complex system STIEBEL ELTRON offers everything from a single source. For that reason, all components are perfectly matched to each other and guarantee a long service life for lasting solutions. For further information on our extensive range of accessories for your STIEBEL ELTRON products see or speak to your local trade partner. Remote control Easy control from a distance The hardwired FEB programming unit enables convenient operation of the system from the living space, as well as the display of system parameters. Suitable for LWZ 180/280 and LWZ 130. Using the multifunction display, the comfort functions are individually adjustable at two levels. The upper level regulates the required fan stage. At the second level, the time program and information parameters can be selected. Automatic ventilation control included The FEQ can also adjust the fan stage automatically subject to the prevailing air quality. Filter changes are indicated depending on the hours run. Suitable for LWZ 70 E. Ventilation grilles Fresh air and design combined with style An optimum indoor environment is ensured not only through the LVE and LVS distribution systems, but also through the corresponding ventilation grilles. The rectangular air grilles are ideal for floor outlets in the supply air area and are particularly stable in form when it comes to installation in the floor. The round air grilles with integral air filter are particularly suitable for wall mounting in the supply air area. Wall or ceiling mounting in the extract air area is also an option. All air grilles are available in different designs and in either plain white or brushed stainless steel.

19 We speak one language the world over: German Engineering We are represented in many key markets throughout the world with our products and solutions. This includes three international production facilities, 24 subsidiaries and agencies in over 120 countries. More than 40 per cent of turnover is now achieved internationally thanks to the high vertical range of manufacture of our products, the well-engineered quality made in Germany and in-depth knowledge of local markets. Holzminden Eschwege Poprad Tianjin Ayutthaya Manufacturing facilities SUCCESS ON FIVE CONTINENTS STIEBEL ELTRON products are available worldwide. We are represented on the international stage by our own subsidiaries as well as numerous trade partners. With their own sales organisations and service facilities they successfully serve a diverse range of markets.

20 Your local trade partner: Have we sparked your interest? For further information, see or consult your local trade partner. STIEBEL ELTRON International GmbH Dr.-Stiebel-Strasse Holzminden Germany Tel Fax Legal notice Although we have tried to make this brochure as accurate as possible, we are not liable for any inaccuracies in its content. Information concerning equipment levels and specifications are subject to modification. The equipment features described in this brochure are non-binding regarding the specification of the final product. Due to our policy of ongoing improvement, some features may have subsequently been changed or even removed. Please consult your local dealer for information about the very latest equipment features. The images in this brochure are for reference only. The illustrations also contain installation components, accessories and special equipment that do not form part of the standard delivery. Reprinting of all or part of this brochure only with the publisher s express permission. Issue 02_ _BÖ_0.1_02_18_MEHR Irrtum und technische Änderungen vorbehalten.