Heating, solar thermal, biogas, wood combustion, heat pumps, boilers, energy efficiency

Heat exchangers

Vitotrans 100

Plate-type heat exchanger

For transfer stations from heat supply networks, for system separation in heating systems with underfloor heating systems, for DHW heating and solar heating systems.
- Heating side up to 130 °C or 200 °C
- Heat exchanger plates and connections made from stainless steel (1.4401)
- Incl. thermal insulation.

Vitotrans 200

Typ WTT / Heat exchanger with heating tube array made from Turbotec pipes

Heat exchanger for swimming pool water heating.
Heating tube array made from high-alloy stainless steel
With fitted thermal insulation

Vitotrans 200

Typ WTD / Heat exchanger with heating tube array made from Turbotec pipes

For generating heating energy in conjunction with steam district heating systems.
Control through condensate backup or control of the steam side
Heating tube array made from high-alloy stainless steel

Vitotrans 300

Flue gas/water heat exchangers constructed from stainless steel, for flue gas condensing
For boilers from 80 to 6.600 kW
Highly reliable operation and long service life due to their corrosion-resistant stainless steel construction. 1.4571 stainless steel is suitable for use on gas boilers and for brief periods on oil-fired boilers. 1.4539 stainless steel is suitable for continuous use on oil-fired boilers.

Biogas plants 1 PASCO dosing station 2 CALIX reception pit 3 EUCO® high performance digester 4 COCCUS® pit storage digester 5 AIO All-In-One-Module (CHP module with system control and material distribution) 6 Transformer station 7 SULA gas-tight fermentation residue store A significant rise in global population, combined with the rapid development of industrialisation worldwide, has resulted in a substantial increase in energy consumption, consumption that is largely based on fossil fuel. As a result, large amounts of carbon dioxide now enter the Earth‘s atmosphere resulting in substantial, long term damage to our climate and environment. Biogas is one of the key renewable sources of energy next to solar and wind. After all, biogas can be produced in a particularly environmentally responsible and CO2 neutral way from sustainable raw and energy-rich waste materials that are available at a regional level. Biogas utilises the natural energy present in organic matter.

Biogas plants for dry fermentation Biogas – clean energy with a big future BIOFerm is in the Viessmann Group the biogas specialist for dry fermentation. We make a real contribution to CO2-neutral energy generation with innovative technologies. Discover biowaste as valuable resource – BIOFerm technology enables the production of primary energy from biowaste and compost. It is environmentally friendly, sustainable and CO2-neutral in production. Only the most rudimentary demands are made of the source material. Food and feedstuffs are not used to generate biogas. Benefits at a glance: - Profitable material management, instead of expensive waste disposal - Additional income for composting and farming enterprises - Affordable, home-grown source material, shielded against price fluctuations - Fixed feed-in remuneration according to the EEG [Germany] - Additional income possibilities through forthcoming CO2 emissions trading - High system availability, minimum idle times - Rapid amortisation - Low operator effort - Low costs for maintenance and wear and tear	Biogas plants for wet fermentation Our core business concerns the development and construction of plants for the production and economic use of biogas. We are not only one of the leading suppliers of biogas plants in Germany, but also one of the few comprehensive suppliers in our sector. Next to building systems, we also offer services covering engineering and development, as well as service and system management. Biogas systems will only operate efficiently and economically if their system technology and microbiology are perfectly matched. Consequently, we follow the maxim „Everything from a single source“. To safeguard a high level of plant availability, our customers are supported by a competent team of specialists, covering planning, permits, process technology, biology and system construction. The conversion of biogenous waste matter into biogas has become an important subject internationally. In many countries, the necessary political conditions and terms for subsidies are currently being created as a basis for the development of the biogas market. In future, we will concentrate even more on selected export markets, although Germany will continue to be our most important core market.	Plants for gas treatment Carbotech – market leader in gas treatment and gas feed-in The treatment and scrubbing of biogas is a key function if biogas is to be fed into the gas mains on an industrial scale, i.e. where it is to substitute imported natural gas. Processing biogas into biomethane gives it almost the same physical/chemical properties as conventional natural gas, enabling it to be fed into the existing gas mains. It can be stored in the same way as natural gas, transported over great distances and can be converted into other fuels, as required. Consequently, biomethane is available for all conventional types of use such as, for example, in CHP modules for the combined generation of heat and power; in industrial boilers and those in private homes; as raw material for the chemical industry, as well as fuel for motor vehicles. Biogas is a local and environmentally compatible sustainable fuel that offers flexible application and a high utilisation efficiency through the fact that it can be fed into the mains.

Combined heating and power stations Tailor-made energy concepts for applications requiring a medium output in municipal buildings, and industrial and commercial enterprises. A gas driven combined heat and power unit (CHP) generates heat and power simultaneously. They are sized to suit residential units and commercial operations. On the heating side, the CHP unit operates in parallel to a boiler. For generating heating water and DHW heating, both heat sources are connected to the heating system.

Vitobloc 200 EM-18/36 Vitobloc 200, module EM-18/36 in combination with a peak load boiler is ideal for residential complexes from 30 to 50 units, for medium-sized hotels, residential homes for the elderly, and car showrooms, etc. With an overall efficiency of 96.4%, the mini CHP unit operates highly efficiently thanks to its condensing technology and is recommended both for new build and modernisation projects. Specification Output: 18 kWel, 36 kWth Fuel: Natural gas 4-cylinder gas engine Efficiency: 96.4% (Hi) – High efficiency through condensing technology	Vitobloc 200 EM-50/81 An additional powerful version is the mini CHP Vitobloc 200, module EM-50/81, which offers an overall efficiency of 90.3%. This CHP unit is also eligible for subsidies through to the mini CHP incentive programme [Germany]. Specification Output: 50 kWel, 81 kWth Fuel: Natural gas (biogas on request) 4-cylinder gas engine Efficiency: 90.3% (Hi) Operation with a heating bias eligible for subsidies in Germany according to the Mini-CHP Incentive Programme	Vitobloc 200 EM-70/115 Specification Output: 70 kWel, 115 kWth Fuel: Natural gas (biogas on request) 6-cylinder gas engine Efficiency: 90.7% (Hi)

Vitobloc 200 EM-140/207 Specification Output: 140 kWel, 207 kWth Fuel: Natural gas (biogas on request) 6-cylinder gas engine Efficiency: 90.4% (Hi)	Vitobloc 200 EM-199/263 Specification Output: 199 kWel, 263 kWth Fuel: Natural gas (biogas on request) 6-cylinder gas engine Efficiency: 89,6.(Hi) – High electrical efficiency through external mixture cooling	Vitobloc 200 EM-199/293 Specification Output: 199 kWel, 293 kWth Fuel: Natural gas (biogas on request) 6-cylinder turbo-charged gas engine Efficiency: 89% (Hi)

Vitobloc 200 EM-238/363 Specification Output: 238 kWel, 363 kWth Fuel: Natural gas (biogas on request) 12-cylinder gas engine Efficiency: 90.1% (Hi)	Vitobloc 200 EM-363/498 Specification Output: 363 kWel, 498 kWth Fuel: Natural gas (biogas on request) 12-cylinder turbo-charged gas engine Efficiency: 89,7% (Hi)	Vitobloc 200 EM-401/549 Specification Output: 401 kWel, 549 kWth Fuel: Natural gas (biogas on request) 12-cylinder turbo-charged gas engine Efficiency: 92.7% (Hi) – High electrical efficiency through external mixture cooling

Gas fired boilers, 7 to 144 (432) kW

Vitopend 200-W Wall mounted gas fired boiler Rated output: 10.5 to 24 kW The solution for affordable and convenient heat With the Vitopend 200-W, Viessmann offers a wall mounted gas fired boiler with a particularly advantageous price/performance ratio, excellent heating and operating convenience, compact dimensions and a timeless, elegant design. Price and performance in perfect harmony The Vitopend 200-W is one of the most affordable in its class, not only in the purchase price, but also where running costs are concerned. After all, it can achieve a high standard efficiency of up to 85 % (Hs) / 94 % (Hi).	Vitogas 200-F Low temperature gas fired boiler Rated output: 11 to 60 kW Atmospheric low temperature gas fired boiler The Vitogas 200-F up to 60 kW is the smallest model in the freestanding gas fired boiler range from Viessmann. It is highlighted by its high performance, operational reliability and long service life. Both its price and dimensions make it an attractive choice: It fits most budgets and into almost any space. Higher output – lower emissions The Vitogas 200-F is not only miserly in its space requirements, but also where outlay and energy consumption are concerned. Its stainless steel premix burner lets it perform better than required for the “Blue Angel” certificate of environmental excellence and the Swiss Clean Air Act.	Vitogas 200-F Low temperature gas fired boiler Rated output: 72 to 144 (432) kW The Vitogas 200-F has true stature – from 72 to 144 kW or as cascade up to 432 kW The Vitogas 200-F always does well – with a rated output of 72 to 144 kW or as a multi-boiler system up to 432 kW. The standard components of the powerful gas fired cascade are the proven Vitogas 200-F (up to 144 kW), the matching flue gas header and the Vitotronic control unit. This makes the Vitogas 200-F an ideal solution even in larger buildings, where quiet operation and an optimum price/performance ratio are a must.

Gas fired condensing boilers By using a condensing boiler to convert natural gas into heat, you are making an active contribution towards protecting the climate and the environment, thanks to the boiler's unbeatably high efficiency of 98 percent. Our gas condensing boilers come with the future built in. Thanks to the Lambda Pro Control combustion control, our gas condensing boilers adjust automatically to all gas types – including biogas mixtures. This way, we will meet the many demands for heating technologies across the whole product range that protect our resources. The fact that no energy storage is necessary is also an argument in favour of a gas heating system – especially if you want to use the space for other purposes. You can even use free solar energy as part of your new heating system! All boilers are designed for combination with Viessmann solar technology. Viessmann system technology guarantees that everything will fit together beautifully and work in harmony, giving you convenient control that meets all your needs.

Vitodens 222-F Gas fired compact condensing boiler with integral DHW primary cylinder Specification: - Gas fired compact condensing boiler with integral enamelled primary cylinder, 4.8 to 35 kW - Seasonal efficiency [to DIN]: 98% (Hs) / 109% (Hi) - Cylinder capacity: 100 litres (35 kW: 130 litres) - Performance factor: NL = 4.8 (35 kW) - Dimensions (height x width x depth): 1 425 x 600 x 595 mm (19, 26 kW) 1 625 x 600 x 595 mm (35 kW) Weight: 125 kg with 100 litre primary cylinder (up to 26 kW), 133 kg with 130 litres primary cylinder (35 kW)	Vitodens 333-F Gas fired compact condensing boiler with integral DHW cylinder Specification: - Gas fired compact condensing boiler with integral stainless steel primary cylinder or enamelled DHW cylinder with indirect coil, 3.8 to 26 kW - Seasonal efficiency [to DIN]: 98% (Hs) / 109% (Hi) - Cylinder capacity: 100 or 130 litres - Performance factor: NL = 2.0 - Dimensions (height x width x depth) with stainless steel primary cylinder: 1 425 x 600 x 595 mm, with DHW cylinder and indirect coil: 1 625 x 600 x 595 mm Weight: with integral stainless steel primary cylinder: 113 kg, with DHW cylinder and indirect coil: 145 kg	Vitodens 343-F Compact Energy Tower with integral solar cylinder, solar control unit and Solar-Divicon Specification: - Gas fired compact condensing boiler with integral solar DHW heating, 3.8 to 19 kW - Seasonal efficiency [to DIN]: 98% (Hs) / 109% (Hi) - Cylinder capacity: 220 litres - Performance factor: NL = 1.8 (19 kW) - Dimensions (height x width x depth): 2 075 x 600 x 595 mm Weight: 130 kg (heating module: 35 kg, DHW cylinder module: 95 kg)

Vitodens 200-W Wall mounted gas fired condensing boiler with Inox-Radial heat exchanger Rated output: 4.8 to 105.0 kW. In cascades up to 420 kW. The wall mounted gas fired condensing boiler Vitodens 200-W is the result of the consistent development of the Vitodens 200 series with the proven stainless steel Inox-Radial heat exchanger.	Vitodens 222-W Wall mounted gas fired condensing boiler with integral primary cylinder Specification Output: 4.8 to 35 kW Standard efficiency: up to 98 % (Hs) / 109 % (Hi) Dimensions: 900 x 600 x 480 mm (H x W x D) (kitchen unit sizes) Weight: 70 kg	Vitodens 300-W Wall mounted gas fired condensing boiler Specification Output: 3.8 to 35 kW Standard efficiency: up to 98 % (Hs) / 109 % (Hi) Dimensions: 480 x 380 x 850 mm (H x W x D) Weight: 45 kg (26 kW)

Vitocrossal 300 Gas fired condensing boiler Rated output: 26 to 60 kW Condensing technology for new build and modernisation The Vitocrossal 300 is a top product amongst freestanding gas fired condensing boilers. It is designed to utilise the condensing energy in its hot gases with exceptional intensity. The balanced flue operation with an output of up to 60 kW is particularly worth mentioning. This enables the Vitocrossal 300 to be installed inside the thermally insulated building envelope. This is especially advantageous for the EnEV [Germany] calculation.

Heat pumps Whether you want to use energy from the ground, groundwater or the air, with a heat pump you will definitely reduce your consumption of fossil fuels, protect valuable resources and lower emissions. Your special benefit: Viessmann ground source heat pumps have an additional "dual function" benefit. They provide heat in winter and ensure a pleasant atmosphere in summer. With their active and natural cooling functions, they bring a refreshing change of air into the house on hot days. Our wide product range offers you the right heat pump, whatever your needs – depending on your own particular plans, your heat demand, and structural and geological conditions. What's more, this isn't just suitable for new build. You can also use a Viessmann heat pump in a modernisation project, and combine it with an oil or gas heating system if you wish.

Vitocal 160-A Air source heat pump for DHW heating Heating output: 1.52 kW Specification Heating output: 1.52 kW COP (air 15 °C/water 45 °C): 3.54 Maximum flow temperature: 55 °C Cylinder capacity: 285 litres Dimensions (length ø x width x height): 660 x 700 x 1 847 mm (recirculating operation) 660 x 700 x 1 838 (extract air operation) Weight: 105 kg (type WWK), 110 kg (type WWKS)	Vitocal 200-G Brine/water heat pump Heating output: 6.1 to 9.7 kW Flow temperatures up to 60 °C Heating with energy from the environment is not a matter of price Viessmann makes the utilisation of renewables particularly attractive for owners of detached homes, with the Vitocal 200-G brine/water heat pump. The Vitocal 200-G brine/water heat pump offers all of the functions required for using a heat pump in a new detached house. The available output sizes from 6.1 to 9.7 kW ensure a convenient heat supply in mono-mode all the year round. The maximum flow temperature of 60 °C even allows for the use of radiators.	Vitocal 222-G Compact heat pump Brine/water heat pump Heating output: 5.9 to 10.0 kW With integral 170 litre capacity DHW cylinder Natural heat for modern detached houses The new compact heat pump Vitocal 222-G is specifically for detached houses. With its very modest dimensions of around 0.4 m² it takes up minimal space. With integral DHW cylinder, brine and heating circuit pumps plus a three-way diverter valve, this compact appliance is quick and easy to install. The Vitocal 222-G includes a 170 litre cylinder and offers high DHW convenience.

Vitocal 242-G Copact heat pump with solar connection Brine/water heat pump Heating output: 5.9 to 10.0 kW With integral 220 litre capacity DHW cylinder Natural heat for modern detached houses The new compact heat pump Vitocal 242-G is specifically for detached houses. With its very modest dimensions of around 0.4 m² it takes up minimal space. With integral DHW cylinder, brine and heating circuit pumps plus a three-way diverter valve, this compact appliance is quick and easy to install. The Vitocal 242-G includes a 220 litre cylinder and offers high DHW convenience.	Vitocal 300-A Air/water heat pump 3 to 9 kW, maximum flow temperature: 60 °C Specification: - Variable output selection from 3 to 9 kW - Coefficient of Performance (air 2 °C / water 35 °C): Up to 3.7 to EN 14511 (5 K spread) - Maximum flow temperature: 60 °C (at 0 °C outside temperature) - Optional internal and external installation, minimum footprint of 863 x 777 mm	Vitocal 300-G Heat pump Brine/water heat pump Specification: Heating output: 6.0 to 34.0 kW Coefficient of Performance (brine 0 °C / water 35 °C): Up to 4.6 (EN 14511 at 5 K spread) Maximum flow temperature: 60 °C - Two-stage from 12 kW (available from 08/2008)

Vitocal 300-G (master/slave) Two-stage heat pump (master/slave) Brine/water heat pump Specification: Heating output: Vitocal 300-G, type BW: 6.2 to 17.6 kW Vitocal 300-G, type WW: 8.0 to 21.6 kW Vitocal 300-G master/slave, type BW/ BWS: 6.2 to 35.2 kW Vitocal 300-G master/slave, type WW/WWS: 8.0 to 43.2 kW COP (brine 0 °C/water 35 °C): up to 4.7 Maximum flow temperature: 65 °C Dimensions (height x width x depth): 970 x 600 x 1 065 mm Weight: 2 x 168 kg (35.2 kW)	Vitocal 333-G Compact heat pump Compact brine/water heat pump Heating output: 5.9 to 10.3 kW With integral 170 litre capacity DHW cylinder Subsidies through innovation bonus These compact appliance is highly efficient thanks to the new refrigerant circuit with electronic expansion valve (EEV) and the Viessmann-developed RCD systems (Refrigerant Cycle Diagnostic) plus the standard power-saving high efficiency pumps. As a result, in Germany, an innovation bonus (BAFA) can be applied for as part of the Top incentive programme.	Vitocal 333-G NC Compact heat pump with integral cooling function NC (natural cooling) Brine/water heat pump Heating output: 5.9 to 10.3 kW Integral 170 litre capacity DHW cylinder Subsidies through innovation bonus These compact appliance is highly efficient thanks to the new refrigerant circuit with electronic expansion valve (EEV) and the Viessmann-developed RCD systems (Refrigerant Cycle Diagnostic) plus the standard power-saving high efficiency pumps. As a result, in Germany, an innovation bonus (BAFA) can be applied for as part of the Top incentive programme.

Vitocal 343-G Compact heat pump with solar connection Compact heat pump Brine/water heat pump Heating output: 5.9 to 10.3 kW Integral 220 litre capacity DHW cylinder Subsidies through innovation bonus These compact appliance is highly efficient thanks to the new refrigerant circuit with electronic expansion valve (EEV) and the Viessmann-developed RCD systems (Refrigerant Cycle Diagnostic) plus the standard power-saving high efficiency pumps. As a result, in Germany, an innovation bonus (BAFA) can be applied for as part of the Top incentive programme.	Vitocal 350-A Air/water heat pump Heating output: 10.6 to 18.5 kW Flow temperatures up to 65 °C Ideal for modernisation With the Vitocal 350-A air/water heat pump modernising is made easy. The additional vapour injection in the compression process (EVI cycle) enables flow temperatures of up to 65 °C. That makes it an ideal choice where older heating systems with radiators are installed. The heat pump draws its energy from the ambient air without the need for drilling boreholes for geothermal probes.	NC-Box Pleasant cooling by energy-conscious and affordable means with the natural cooling box Heat pumps can also be used for cooling a building because on hot summer days, temperatures inside buildings are generally higher than underground or in groundwater. With natural cooling, the ground or groundwater are used to dissipate the heat from your living space. Specification: Dimensions: 580 x 520 x 420 mm (W x D x H) Weight: 25 kg

AC-Box The efficient means of combining heating with cooling using the active cooling box The active cooling box combines the energyefficient natural cooling and the active cooling functions using the compressor in a single system. With natural cooling, the compressor circuit is bypassed – only the brine and heating circuit pumps are running. As soon as the natural cooling capacity becomes inadequate, the system automatically switches over to active cooling. Specification: Cooling capacity: Up to 13 kW Dimensions: 350 x 720 x 970 mm Weight: 80 kg

Large boilers Oil/gas boilers for medium and high output Steam Boilers and Waste Heat Boilers

Vitomax 100-LW type M148 Type M148, oil/gas fired low pressure hot water boiler Rated output: 0.65 to 6.0 MW. Permissible operating pressure: 6/10 bar. Permissible flow temperature: 110 °C The Vitomax 100-LW is an oil/gas fired low pressure hot water boiler – typical applications are local heating networks.	Vitomax 200-LW Typ M62A Type M62A, Low pressure hot water boiler Specification Low pressure hot water boiler, 2.3 to 6.0 MW, 6/10/16 bar Dimensions (height x width x depth): 2 720 x 2 400 x 5 850 mm (6 MW) Weight: 12.1 t (6 MW, 10 bar)	Vitomax 200-LW Typ M64A Type M64A, Low pressure hot water boiler Specification Low pressure hot water boiler, 8 to 20 MW, 6/10/16 bar Dimensions (Length x width x heigt): 9.5 x 3.7 x 4.2 m (20 MW) Weight: 48 t (20 MW, 10 bar)

Vitomax 200-WS type M250 Type M250, oil/gas fired low pressure hot water boiler Rated output: 1.75 to 11.63 MW. Permissible operating pressure: 3 bar. Permissible flow temperature: 110/120 °C. The Vitomax 200-WS is an oil/gas fired low pressure hot water boiler. It was specifically developed for the demands of commercial nurseries.	Vitomax 300-LT type M343 Type M343, oil/gas-fired low pressure hot water boiler that can bes used as a low temperature boiler. Rated output: 1.86 to 5.9 MW. Permissible operating pressure: 6 bar. Permissible flow temperature: 110/120 °C The Vitomax 300-LT is a low pressure hot water boiler that can be used as low temperature boiler. One typical application would be an apartment block where the system is operated in modulating mode, subject to outside temperature.	Vitomax 200-HW type M236 Type M236 / High-pressure hot water boiler Rated output: 0,52 to 2,84 MW The Vitomax 200-HW is an oil or gas fired high pressure hot water boiler for permissible flow temperatures in excess of 120 °C, permissible operating pressures of 6 to 25 bar – a typical boiler for district heating and industrial operations.

Vitomax 200-HW type M238 Type M238 / High-pressure hot water boiler Rated output: 4 to 18.2 MW Vitomax 200 is an oil or gas fired high-pressure hot water boiler for permissible flow temperatures in excess of 120°C, permissible operating pressures of 6.5 to 25 bar – i.e. a standard boiler for district heating and industrial applications.	Vitoplex 100 LS type SXD Low pressure steam boiler Output range: from 0.26 to 2.2 t/h The Vitoplex 100-LS is a compact three-pass boiler for generating low pressure steam in the output range from 0.26 to 2.2 t/h. The boiler is designed for operation with 1 bar pressure. Subject to requirements, the operating pressure can be reduced to 0.5 bar.	Vitomax 200-LS type M233 Type M233 / Low pressure steam boiler Steam output: 2.9 to 5.0 t/h The Vitomax 200-LS (type M233) is a low pressure steam boiler with permissible operating pressure up to 1 bar, steam output: 2.9 to 5.0 t/h.

Vitomax 200-HS type M237 High pressure steam boiler with flue gas heat utilisation Type M237 with steam output of: 0.7 to 3.7 t/h The Vitomax 200-HS with integral economiser is generally used in the same type of systems as boilers without ECO. In a series steam output between 0.7 and 3.7 t/h is provided at 25 bar operating pressure.	Vitomax 200-HS Typ M75A High pressure steam boiler Type M75A, steam output: 5 to 26 t/h Specification: High pressure steam boiler, 5 to 26 t/h, to 25 bar Dimensions (height x width x depth): 4 340 x 3 900 x 8 664 mm (25.21 t/h without economiser) Weight: 58.3 t (25.21 t/h, 18 bar)	Vitomax 200-RW/RS Waste heat boiler for hot water and steam generation Waste heat boilers utilise the heat from flue gases generated during combustion processes or the heat in hot exhaust air from industrial processes to generate hot water or saturated steam.

Large heat pumps up to 1500 kW With technical expertise, high manufacturing ability and many years of experience, KWT is the heat pump manufacturer of choice for every special application. KWT works together with its clients to develop solutions that are based on more than 30 years' experience, that will meet practical, everyday needs, and that will overcome any and every challenge. All deadlines and costs arranged can be relied on, with no unexpected surprises. All systems are designed and built based on our customers' performance definitions. All heat pumps and geothermal probes verify this performance on the test bed and in practice.

Geothermal probes KWT brine/water heat pumps – designed with expertise and built with quality. Geothermal probes are durable, maintenancefree heat sources. In conjunction with heat pumps, they provide energy for heating, but are also the ideal heat exchanger for natural cooling. In both cases, KWT brine/water heat pumps utilise the constant temperature in the ground. DHW heating DHW temperatures above 60 °C are often needed. However, especially with larger heat pumps, the demand for DHW heating accounts for the lesser proportion of total output. With multi-stage heat pumps or hot gas decoupling, KWT heat pumps can provide the ideal solution to meet this demand. The use of special safety heat exchangers guarantees global potable water requirements are maintained.	Water/water heat pumps High grade components make KWT water/water heat pumps powerful and reliable in borderline areas. Groundwater at 8 to 12 °C is a very rich heat source for a heat pump, as the temperature level is high all year round. However, fluctuating water qualities usually require special heat exchangers (evaporators) if you wish to avoid having intermediate circuits. Stainless steel tubular evaporators KWT heat pumps for groundwater or surface water are equipped with high grade stainless steel tubular heat exchangers. The benefits are obvious – the evaporator has a large volume and generously sized surface area, so the border regions are not vulnerable to icing up. Light floating parts are simply flushed through with the medium, and aggressive chemical fluids have little destructive effect on the high grade stainless steel.	Air/water heat pumps KWT air/water heat pumps for heating and cooling, in conjunction with conventional heat sources, are an economical solution where cooling is required. Air is readily available as a source of heat. However, even when cooling is required, air can easily absorb the extracted heat. KWT air/water heat pumps make particularly efficient use of air temperatures down to about 5 °C, with which they can cover up to 50 % of the annual heat demand. Heating and cooling Air/water solutions from KWT are suitable for heating and cooling. In both cases, the highest level of efficiency is guaranteed thanks to variable speed DC fans. The special design of the air heat exchangers, with gaps twice as wide as in conventional chillers, optimises heat transfer, lowers the pressure drop of the air flow rate, reduces noise and ensures a fast and efficient defrost process.

Special systems KWT special systems are built precisely in accordance with your requirements, they are reliable in operation, and have been used successfully as system components for many years. Waste water and waste heat from industrial processes contain a great deal of energy, which is only seldom used. KWT has the right expertise to exploit this energy. Even for extremely low outside temperatures of minus 40 °C up to plus 35 °C, there is a matching heat pump in the KWT range. DHW heating Waste water from hotels and leisure complexes is usually at a residual temperature of 25 to 35 °C. At the same time, however, such complexes also require a large amount of fresh hot water. KWT, with its ideally suited heat pumps is best placed to make use of this waste heat and so is the perfect partner for such projects. Their heat pumps are highly efficient and supply a water temperature of 60 °C.	Engineering and service KWT guarantees the components and assemblies in its products will work seamlessly together – from individual support in designing the system right through to maintenance. Heat pumps from KWT guarantee efficient and reliable operation. Following installation, KWT engineers or Viessmann service companies commission the system, check its output and reliability, document all the work and tests carried out, and instruct the future operators. As the only heat pump manufacturer in Switzerland with a complete value chain within its own company, KWT guarantees the components and assemblies in its products will work seamlessly together – from individual support in designing the system right through to maintenance. Outside Switzerland, these services are provided by Viessmann.

Medium boilers, 80 to 1950 kW Viessmann offers innovative heating solutions for residential complexes, municipal buildings, and industrial/commercial buildings. Take a closer look at the many options available.

Vitoradial 300-T Oil fired condensing boiler Rated output: 101 to 335 kW	Vitoplex 200 Low temperature oil/gas fired boiler Rated output: 90 to 1950 kW	Vitoplex 300 Low temperature oil/gas fired boiler Rated output: 90 to 2000 kW	Vitorond 200 Low temperature oil and gas fired cast iron boiler Rated output: 125 to 1080 kW	Vitocrossal 200 CM2 Condensing Unit with MatriX radiant burner Rated output: 87 (29) to 311 kW, as twin-boiler system up to 622 kW

Vitocrossal 200 type CT2 Condensing Unit with MatriX cylinder burner Rated output: 404 (135) to 628 kW, as twin-boiler system up to 1256 kW	Vitocrossal 300 CM3 Gas fired condensing boiler with MatriX radiant burner Rated output: 87 (29) to 142 kW	Vitocrossal 300 type CT3 Gas condensing boiler Rated output: 187 to 635 kW	Vitocrossal 300 CR3 Gas fired condensing boiler Rated output: 787 and 978 kW	Vitoplex 100 LS SXD Low pressure steam boiler Output range: from 0.26 to 2.2 t/h

Solid fuel-fired boilers The rising costs of fossil fuel and growing environmental awareness are resulting in an ever-increasing demand for renewable types of energy. On the following pages, we will give you comprehensive information about burning wood, as a regenerative fuel, efficiently in advanced boilers. A wood boiler is a good alternative to heating with oil or gas. This natural fuel has a lot to recommend it, and not only because it is environmentally responsible; wood as an indigenous fuel is also very affordable and not subject to wide price fluctuations. In addition, advanced Viessmann technology makes heating with wood efficientand convenient. The Vitolig/Vitoligno range offers flexible solutions, either as an auxiliary or complete heating system, subject to boiler type, with logs or pellets.

Vitoligno 100-S Log gasification boiler Rated output: 20 kW The ideal companion boiler The Vitoligno 100-S is a very attractively priced log gasifi cation boiler with rated output of 20 kW. This compact companion boiler is also an ideal addition to an existing oil or gas fi red heating system. Its large hopper can be easily fi lled from the front with logs up to 50 cm long, thanks to its large charge door, and its large dimensions also enable long combustion times. The gasification technology enables the Vitoligno 100-S to achieve a high level of effi ciency. The solid hopper, constructed from 8 mm thick steel plates, and the reliable vacuum fan ensure a long service life.	Vitolig 200 High grade wood gasification boiler Rated output: 13 to 40 kW High grade high performance wood gasification boiler The Vitolig 200 is a high grade wood gasification boiler in the rated output range from 13 to 40 kW with output modulating infinitely between 50 to 100 % of rated output. 50 cm long logs, chippings and wood briquettes are easily handled by the large stainless steel hopper. Combustion times up to 12 hours guarantee long intervals between recharging. The unique automatic heat-up system ensures that the combustion chamber temperature required for optimum combustion is reached within three minutes of start-up.	Vitoligno 300-P Fully automatic pellet boiler 4 to 48 kW - Automatic cleaning of the heating surfaces for permanently high efficiency - Automatic ash removal from the burner bowl for long cleaning intervals - Charge unit, comprising a rotary lock valve and supply auger for precise, economical fuel dosing and 100% safe backburn reliability - Best energy utilisation through automatic matching of the three-pass heating surface to the actual heat demand with the patented Variopass principle - Automatic and energy-saving ignition with heater elements - Digital control unit with full text display with user prompts and automatic function monitoring plus solar and buffer cylinder control - Extensive accessories for pellet supply and storage

EXPO21XX Online Trade Fair		Navigation : EXPO21XX.com > RENEWABLE ENERGY 21XX > Biogas Plant Components > Viessmann