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BACKGROUND ARTICLE<br />
New generation of parking heaters: <strong>Thermo</strong> <strong>Top</strong> <strong>Evo</strong><br />
Content<br />
<strong>Webasto</strong> <strong>Thermo</strong> <strong>Top</strong> <strong>Evo</strong> as original equipment or for retrofitting ......................................... 2<br />
How a parking heater works .................................................................................................... 2<br />
The evolution of <strong>Thermo</strong> <strong>Top</strong> to <strong>Thermo</strong> <strong>Top</strong> <strong>Evo</strong> ................................................................... 2<br />
What does the plus stand for on the <strong>Thermo</strong> <strong>Top</strong> <strong>Evo</strong> 5+? ..................................................... 3<br />
Availability of the <strong>Thermo</strong> <strong>Top</strong> <strong>Evo</strong> .......................................................................................... 3<br />
Smart operating controls .......................................................................................................... 4<br />
© <strong>Webasto</strong> Group, April 2011 Page 1 of 4
New parking heaters for today and the future<br />
<strong>Webasto</strong> <strong>Thermo</strong> <strong>Top</strong> <strong>Evo</strong> as original equipment or for retrofitting<br />
<strong>Webasto</strong> has been developing innovative solutions for the automobile industry for more<br />
than 75 years. This tradition-rich company from Stockdorf manufactured its first parking<br />
heater in 1930. And today there are many kinds of motor vehicle heating solutions<br />
available based on a wide range of different technologies. <strong>Webasto</strong> is the market<br />
leader in this field, where the technologies are highly developed and mature. The end<br />
users are the main beneficiaries of these skills and knowledge: they can rely on<br />
outstanding quality, comprehensive customer support and seamless integration of<br />
parking heaters into their vehicles.<br />
How a parking heater works<br />
At the heart of a parking heater is the burner. The<br />
main components of the burner are: the combustion<br />
chamber, vaporizer and glow plug. This is how the<br />
heater works: a dosing pump feeds fuel to the<br />
vaporizer inside the combustion chamber. The<br />
heater’s blower provides the air to create a<br />
combustible fuel-air mixture. A glow plug ignites the<br />
mixture and a stable flame forms. A circulatory<br />
pump delivers a heat-carrying coolant from the<br />
vehicle’s cooling system and circulates it around the<br />
combustion chamber. The coolant medium is<br />
warmed by the heat in the combustion chamber and<br />
Figure 1: Sectional view <strong>Thermo</strong> <strong>Top</strong> <strong>Evo</strong><br />
conducted into the vehicle’s coolant circulatory<br />
system. The vehicle’s heat exchanger transfers the heat from the coolant into the air,<br />
which is then blown into the passenger compartment by the vehicle’s heater fan. This<br />
warm air deices the front windshield and warms the vehicle’s interior. The engine is<br />
also prewarmed by the parking heater.<br />
The evolution of <strong>Thermo</strong> <strong>Top</strong> to <strong>Thermo</strong> <strong>Top</strong> <strong>Evo</strong><br />
The latest development from <strong>Webasto</strong> unites the strengths of two currently successful<br />
product series: <strong>Thermo</strong> <strong>Top</strong> V and <strong>Thermo</strong> <strong>Top</strong> C. <strong>Thermo</strong> <strong>Top</strong> V is a compact unit,<br />
which can be used in many different situations, while <strong>Thermo</strong> <strong>Top</strong> C has a very robust<br />
vaporizer burner. <strong>Webasto</strong> has combined the compactness of the one and the reliable,<br />
maintenance-free burner technology of the other to create a new generation of parking<br />
heaters: <strong>Thermo</strong> <strong>Top</strong> <strong>Evo</strong>. This powerful parking heater is available in three versions<br />
for retrofitting into virtually any type of automobile.<br />
© <strong>Webasto</strong> Group, April 2011 Page 2 of 4
With a rating of four kilowatts (kW), the <strong>Thermo</strong> <strong>Top</strong> <strong>Evo</strong> 4 has the heat output of a<br />
Swedish stove. It is particularly suitable for compact vehicles. The five kW model,<br />
<strong>Thermo</strong> <strong>Top</strong> <strong>Evo</strong> 5, is meant for standard and full-sized automobiles, while the 5+<br />
model is intended for vehicles with particularly large interiors or engines. <strong>Thermo</strong> <strong>Top</strong><br />
<strong>Evo</strong> models are available for operation with any commonly available fuel.<br />
Depending on the vehicle and its heater, <strong>Webasto</strong> parking heaters require only about<br />
20 minutes to heat up the car, even in temperatures of minus five to minus ten degrees<br />
Celsius.<br />
What does the plus stand for on the <strong>Thermo</strong> <strong>Top</strong> <strong>Evo</strong> 5+?<br />
The flagship of the <strong>Thermo</strong> <strong>Top</strong> <strong>Evo</strong> series is the <strong>Thermo</strong> <strong>Top</strong> <strong>Evo</strong> 5+. It is the most<br />
powerful of the available models, as it was specially designed for vehicles with large<br />
interiors or engines. The parking heater incorporates several new technologies that<br />
allow this type of vehicle to be heated up as quickly as possible and have the front<br />
windshield deiced in record time. This is achieved with a new type of water circuit<br />
regulator. Its special features are: the circulatory pump delivers the coolant at a slower<br />
rate than the other models in the <strong>Thermo</strong> <strong>Top</strong> <strong>Evo</strong> series. The slower speed of flow<br />
gives the heat exchanger more time to transfer the heat energy from the combustion<br />
chamber into the coolant. This means that the coolant arrives at the vehicle’s heat<br />
exchanger at a higher temperature. As a result: the air can be warmed more intensely<br />
before passing into the vehicle interior. A delayed switch-on of the vehicle’s heater<br />
reinforces this effect. This in turn conserves the battery, as the vehicle’s blower draws<br />
a lot of power. After the coolant has flowed through the vehicle’s heating system, it is<br />
further conducted to the engine, which is prewarmed with the residual heat.<br />
This new method of regulating the water circulation system greatly increases the<br />
efficiency of the heating process and thaws the front windshield more quickly. This is<br />
good news for drivers on short car trips that do not comply with the general rule of<br />
thumb that journey times should be at least as long as the engine’s heating-up time.<br />
Availability of the <strong>Thermo</strong> <strong>Top</strong> <strong>Evo</strong><br />
The <strong>Thermo</strong> <strong>Top</strong> <strong>Evo</strong> is immediately available as an aftermarket system with a<br />
standard installation kit for all vehicles. Vehicle-specific installation solutions will be<br />
offered for every model entering the market from 2010. All installation solutions ensure<br />
that the parking heater can be seamlessly integrated into the vehicle’s system<br />
interfaces. This work should be performed by suitably qualified workshop personnel<br />
only. Therefore end customers must have their parking heaters retrofitted by a certified<br />
<strong>Webasto</strong> installation partner.<br />
© <strong>Webasto</strong> Group, April 2011 Page 3 of 4
Smart operating controls<br />
<strong>Webasto</strong> offers the user several types of control. For people who are at ease<br />
programming their parking heaters, there is the comfort timer. This digital controller has<br />
three programmable starting times, which can be activated up to 24 hours in advance.<br />
Then there is the Telestart T91 remote control unit for even more comfort and<br />
convenience. The transmitter is in the form of a key ring and has a range of up to<br />
1,000 meters. Yet more heater remote control options are offered by the Telestart T100<br />
HTM. The remote control has an integrated heating time management (HTM) system,<br />
which uses a temperature sensor fitted to the vehicle to detect the current passenger<br />
compartment temperature and calculates the optimum start time for the parking heater,<br />
taking into account the intended time of departure. The handset has a maximum range<br />
of approximately 1,000 meters.<br />
* * *<br />
© <strong>Webasto</strong> Group, April 2011 Page 4 of 4
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