FAQ

FAQ

Infrared heating

What is infrared radiation or IR-radiation?

 

The word "infrared" (infra, Latin = beyond) already makes it clear that here the range of electromagnetic radiation is meant that is above the red end of the visible light spectrum and therefore does not contain any UV radiation.

ETHERMA and its products strive to make ideal use of the highly efficient infrared technology related to heat. That is why we offer the right ingenious heating solution for every wave range.

Individual infrared areas differ in their wavelengths.

IR-C long-wave infrared: LAVA® design infrared heating

IR-B medium-wave infrared: industrial quartz heater

IR-A short-wave infrared: infrared heater 

What is radiant heat or thermal radiation?

 

Infrared heating and underfloor heating use the principle of radiant heat. Infrared heaters generate infrared radiation directly on the heating panel by supplying electrical energy. If the rays come into contact with solid matter such as furniture, ceilings or people, they are converted into cozy warmth. Objects and people release the absorbed heating energy back into the living space. This is a major difference between infrared heating and classic convection heaters. The latter heat the ambient air in the living room, as warm air physically rises upwards, although the ceiling is warmed up, floors and room corners are only slightly warmed. The warm air sinks again, which swirls dust and causes clearly noticeable drafts.

In contrast, the radiant heat from infrared heating ensures a pleasant and even distribution of heat throughout the living space. Bedford and Liese already used their comfort diagram to prove that the pleasant room climate of infrared heating allows the room air temperature to be reduced by around two degrees while maintaining the same level of wellbeing. The ambient temperature can thus be reduced without sacrificing comfort and every degree less lowers heating costs.

How does infrared heating work?

 

Think of a cold, sunny winter day: you freeze in the shade - one step in the sun and it becomes pleasantly warm, with the air temperature unchanged. On the sunny ski hut, the most popular places are on the house wall - why? Here the so-called "secondary radiation" of the warm wall increases the feeling of warmth even more. Infrared heating is based precisely on this principle of solar radiation. Thermal radiation does not primarily heat the air, but rather the ceiling, walls, objects and people absorb the radiant heat. The environment stores the heat and releases it back into the room (= secondary radiation). This homogeneous heating of the room creates a pleasant room climate in which losses due to rising warm air (such as with convection heat) are largely avoided. The infrared heating from ETHERMA is simply installed and plugged in. It's that easy.

How does infrared heating differ from other heating systems?

 

Compared to other heat generators, infrared heaters have a high end energy efficiency. Because they generate the heat where it is needed. Heat losses, as in the case of water-based heating systems due to the transport of the heated heating water from the boiler and the piping to the radiators, do not occur with infrared heating. Because it works directly. This better utilization of the thermal energy permanently lowers heating costs. Due to the direct heat radiation of an infrared heater, the room temperature is perceived to be two to three degrees warmer. This means that less heating power is required and the heating times are also reduced. This is how you heat sustainably and more consciously. Because every degree less room temperature means a reduction in energy consumption of up to 6%.

 

 

 

What are the advantages of infrared heating?

 

Who doesn't like to be ahead of their time? In fashion it goes without saying that you have your finger on the pulse, your own four walls correspond to the trends in architecture. In the area of heating, however, people still seem to have old habits. Here, too, you could be en vogue and, with the right heating system, even be ahead of the times. If you choose infrared heating, there are many good reasons for it - you can find out more about this and what to consider here.

What additional costs arise with infrared heating?

 

When it comes to purchasing a heater, you should also think about the follow-up costs (such as ancillary and maintenance costs) that may arise.

With many heating systems you have to reckon with high additional costs for the construction (e.g. deep drilling) and also with recurring maintenance costs (e.g. replacement of the boiler) - costs that are rarely mentioned by the provider. With infrared heaters from ETHERMA, there are no such additional and maintenance costs - they are installed quickly and easily and are maintenance-free. And the acquisition costs are usually far below those of other heating systems.

What operating costs do I have to expect?

 

ETHERMA infrared heaters are characterized by high efficiency and effectiveness. The total number of watts required per room depends on the nature of the building, the insulation of the windows and walls and, of course, the usage behavior of the residents.

The best way to reduce operating costs is through the precise controllability. The fact that infrared heaters work directly means that the room temperature can be reduced while maintaining the same level of well-being. Every degree less room temperature cuts costs by up to 6%. In addition, there is no inefficient "heat lake" on the ceiling, as is the case with convection heat. A combination of infrared heating with a photovoltaic system not only makes you independent, but of course also helps to save costs.

Is there a difference between infrared heating and infrared radiant heaters?

 

Infrared radiators and infrared heaters are operated with electricity, they differ mainly in the wavelength of the infrared radiation.

Infrared emitters are so-called short-wave emitters, the short-wave infrared (infrared A) generated is partly in the visible range, so short-wave emitters also emit reddish rays and have a higher surface temperature. They are ideally suited for heating outdoor areas such as the terrace, as they penetrate the air very quickly and drafts cannot harm them - a big difference to the typical gas emitters.

The LAVA® infrared heating from ETHERMA is one of the so-called dark radiators, here long-wave infrared rays (infrared C) are emitted, which are in the no longer visible range of light. They work deep in the skin and in the body and warm objects. Ideal for efficient use in living spaces.

What consumption costs will I have to pay?

 

ETHERMA infrared heaters work very efficiently. Of course, the so-called heating requirement depends on various factors, such as the size of the room, construction, thermal insulation of the walls and windows, heat perception and usage behavior.

The best way to reduce consumption costs is through precise regulation - ETHERMA infrared heaters can be regulated precisely and as required. The direct heat allows you to lower the room temperature while maintaining the same sensation of warmth. In contrast to convection heat and water-based systems, a medium (such as air or water) does not have to be heated beforehand - the heat is generated directly and without losses. A combination of infrared heating and a photovoltaic system is ideal, as this makes you independent, as you generate the electricity yourself. ETHERMA and our partners calculate the individual heating requirement and find the perfect heating solution for you - contact us without obligation.

What is meant by heating load?

 

In structural engineering, the heating load is understood to be the supply of heat that is necessary to maintain a certain room temperature. This is given in watts. The heating load is determined by the geographical location of the building, the purpose of the rooms and the construction of the walls and windows. The intended purpose requires the heating system and the use of thermal protection measures. The determination of the heating load is standardized in EN 12831.

What is meant by heating demand?

 

Now it's getting technical! The heating demand describes the calculated amount of energy that has to be supplied per building area within the heating period in order to maintain the desired internal temperature, e.g. as is given by radiators to a heated room.

The heating requirement is a construction parameter, i.e. typical for a special building, and is determined by the building envelope (structural shape, insulation), location (large and small climatic conditions) and its structural use, but is independent of user behavior. The design of the building is determined by the degree of compactness, the thermal insulation by the heat transfer coefficients (U-value) of the outer and separating surfaces (i.e. the walls and windows); it also contains the total energy transmittance (g-value) of all window surfaces, including orientation (i.e. facing north or south) and any shading of the glass surfaces, i.e. heat gains through solar radiation (ÖNORM B 8110-1).

Basically, the lower the value, the better. In general, the heating requirement is used to define energy standards for houses: The minimum requirements for efficient modern thermal insulation are around heating demand ≤ 100, for newly built houses, according to the German Energy Saving Ordinance, the low-energy house standard with a specific heating requirement of between ≤50 kWh / m² a required, for unrenovated old buildings the value is typically over 150 to well over 300 kWh / m²a.

In summary, the heating demand specifies the basic heat requirement that has to be used to keep the building warm for people. The coldest winter is not used, but an average of the past 30 years. The value also says nothing about the heating behavior of the residents, but only relates to the building itself - in order to be able to compare them as objectively as possible.

How does infrared heating differ from convection heating?

 

Almost all heating systems are based on the principle of convection heating - here, air is heated in advance, which should create a feeling of warmth. Convection has some disadvantages: a medium (air) has to be heated beforehand, which wastes energy, with infrared heat, heat is generated directly on people and objects. The warm air rises and stirs up dust and bacteria. It's not really warm on the floor, but on the ceiling.

Infrared heat creates a feeling of warmth directly on people, walls and objects through invisible heat waves. Energy is not wasted by heating a medium (e.g. air) in advance. The cozy warmth spreads everywhere.

Electric direct heating is forbidden, isn't it?

No more!

Finally, after a long struggle on various levels, the unjustified discrimination against electricity as a primary energy factor was overturned. In Austria, this is stipulated in the new OIB guideline 4/2019 "Energy saving and thermal protection" - this is mainly about the energy certificate of buildings.

The following passage is decisive: OIB RL6 2011: 12.6 Electrical resistance heating: "When building new buildings, electrical resistance heating must not be installed or used as the main heating system." This was deleted without replacement, it was replaced by a general calculation model that no longer excludes any form of energy.

The Austrian OIB guideline has meanwhile been implemented in all federal states - but be careful - not every employee of the municipalities is up to date! If you need help with these things or with the energy performance certificate, please contact our planning team, we will be happy to help.

Can I have my own motif on a picture infrared heating?

 

Absolutely!

An ETHERMA picture infrared heating panel is not only a heat source, but also a decorative element that is used in private as well as in public buildings. Especially in areas that require additional heat, the picture heating can score perfectly thanks to its excellent heat output. And you alone decide which photo or motif is on the infrared panel.

Frameless design element for any room

Efficient heating system

Individual image motif

Horizontal & vertical assembly

Uncomplicated connection to a socket

What requirements does a picture have to meet for picture heating?

 

The favorite photo from the last vacation with the family, funny snapshots of the children or the pet, the company logo or the opening times of the doctor's office - basically the motif is your choice. Of course, you can also use purchased motifs such as graphic design work for this.

In order for you to achieve an optimal result and not have blurry motifs on the infrared panel, the correct resolution is crucial. This should be 300 dpi (corresponds to print quality). In addition, the image or motif should be of sufficient size - the rule of thumb here is that the file should not be less than 5 MB. Unfortunately, even with a good resolution, a picture the size of a postcard cannot be applied to an infrared heater with the dimensions of 130cm x 63cm, for example, without becoming blurred.

You should also have decided before selecting the image whether you want to hang the infrared heater horizontally or vertically - depending on the desired image, it should also be in landscape or portrait format. The dimensions of the available infrared panels are:

50 x 63 cm 

90 x 63 cm

130 x 63 cm

160 x 63 cm

If you are not sure whether the image quality and size is sufficient for the infrared heating, we will be happy to check this for you free of charge at marketing(kwfat)etherma(kwfdot)com.

Infrared heater

What is the difference between a high quality infrared heater and a € 70 heater?

 

 

Cheap infrared heater use cheap quartz tubes. High-quality outdoor heaters, on the other hand, work with high-performance tubes that generate a significantly higher temperature. As a result, the heating output is considerably greater with the same energy consumption.

With small, cheap devices, you won't feel any warmth even with the slightest breeze.

Do I have the right hand transmitter for my dimmer or dimming module?

 

Depending on whether FUS6 or HT4 is stated on the back of the hand transmitter:

FUS6 is for all ARC devices with radio control

HT4 is for all BT devices with Bluetooth control

How do I set my hand transmitter to my dimmer? (Wireless)

 

Connect the device to the mains. Note that this setting is only possible for the first 180 seconds when the device is supplied with power. Make sure that all other radiant heaters are disconnected from the power supply. This prevents them from being controlled.

Briefly press the desired channel. The radiator gives a signal and switches itself "on". (The round button on the hand transmitter is not a channel.)

Briefly press the same channel again to confirm the setting.

Press and hold the desired channel until the heater switches itself off and on again. The device is now set to the hand transmitter.

How do I control several dimming modules with one hand transmitter? (Wireless)

 

Connect the device to the mains. Note that this setting is only possible for the first 180 seconds when the device is supplied with power. Make sure that all other radiant heaters are disconnected from the power supply. This prevents them from being controlled. Learn in each dimming module individually. We recommend teaching in a dimming module or spotlight per channel.

Briefly press the desired channel. The radiator gives a signal and switches itself "on". (The round button on the hand transmitter is not a channel.)

Briefly press the same channel again to confirm the setting.

Press and hold the desired channel until the heater switches itself off and on again. The device is now set to the hand transmitter.

How do I reset my hand transmitter and dimming module? (Wireless)

 

Connect the device to the mains. Note that this setting is only possible for the first 180 seconds when the device is supplied with power. Make sure that all other radiant heaters are disconnected from the power supply. This prevents these from being reset as well.

Press the 2 upper buttons on the hand-held transmitter for 4 seconds and wait until the red LED on the hand-held transmitter lights up. Then release the 2 upper buttons.

Press the 2 upper buttons on the hand transmitter again until the heater gives an on / off signal. Then release the buttons and the reset is complete. You can now readjust the infrared heater.

How do I set my hand transmitter to my dimming module? (Bluetooth)

 

Connect the device to the mains. Note that this setting is only possible for the first 180 seconds when the device is supplied with power. Make sure that all other radiant heaters are disconnected from the power supply. This prevents them from being controlled as well.

Press the 2 upper buttons on the hand-held transmitter for 4 seconds and wait until the red LED on the hand-held transmitter lights up. The radiant heater now switches on and off.

Press the desired channel for 2 seconds. The spotlight gives a signal and switches itself on and off. (The round button on the hand transmitter is not a channel). 

Press the 2 top buttons on the hand transmitter for 2 seconds until the LED on the hand transmitter lights up. It will now light up for 10 seconds. The setting is then completed.

How do I control several dimming modules with one hand transmitter? (Bluetooth)

 

Connect the device to the mains. Note that this setting is only possible for the first 180 seconds when the device is supplied with power. Make sure that all other radiant heaters are disconnected from the power supply. This prevents them from being controlled. Teach in each dimming module individually. We recommend teaching in a dimming module or spotlight per channel.

Press the 2 upper buttons on the hand-held transmitter for 4 seconds and wait until the red LED on the hand-held transmitter lights up. The infrared heater now switches on and off.

Press the desired channel for 2 seconds. The spotlight gives a signal and switches itself on and off. (The round button on the hand transmitter is not a channel).

Press the top 2 buttons on the remote control for 2 seconds until the remote control LED lights up. It will now light up for 10 seconds. The setting is then completed.

When you have finished setting the device, disconnect it from the power supply to set the next device.

How do I reset my hand transmitter and dimming module? (Bluetooth)

 

Connect the device to the mains. Note that this setting is only possible for the first 180 seconds when the device is supplied with power. Make sure that all other radiant heaters are disconnected from the power supply. This prevents these from being reset as well.

Press the 2 upper buttons on the hand transmitter for 6 seconds and wait until the red LED flashes slowly after 4 seconds. After 6 seconds the red LED flashes quickly.

Briefly press the round center button. The LED lights up for 10 seconds. The reset is now complete. You can readjust the spotlight.

How do I update my bluetooth dimming module?

 

The BT dimming modules sometimes need an update. As soon as this update has been carried out, the BT remote control should also receive an update.

Start the "X-Heatlinks" app.

Press + in the upper right corner.

Press "Search for new devices".

Now the app asks automatically whether an update can be carried out.

Run this update.

The update has been carried out when the 3 steps have been completed. (Note that this may take a while)

How do I update my Bluetooth handheld transmitter?

 

This update can only be carried out after an update has been carried out for the Bluetooth dimming module.

Start the "X Heatlinks" app.

Press the + in the top right.

Take the hand-held transmitter and hold down the lower 2 buttons for 5 seconds until the red LED on the hand-held transmitter starts to flash.

In the app, click on "Search for new devices". 

Now it appears in the app. "HT4 Remote" is displayed. Press the down arrow to the right of "HT4 Remote".

Run this update.

The update is carried out when the 3 steps have been completed. (Note that this may take a while.)

Control

How do I pair the ET-111A receiver or LAVA-F with the ET-14A thermostat?

 

Set the thermostat ET-14A to "OFF".

Press and hold the button on the receiver for 5 seconds and check that the LED light closest to the antenna has started flashing.

Now hold down the 2nd button from the left on the thermostat until "TAB" is displayed on the screen.

Press and hold the 2nd button from the left again until "RF100" is displayed in the upper left corner.

Wait until "OK" appears above the 3 button from the left, and then press it. The thermostat will now go through a cycle to connect to the receiver. (Note that this may take a few minutes.)

Wait again until "OK" is displayed above the 3rd button from the left. Press this button repeatedly until you return to the "OFF" function of the thermostat.

How do I reset ET-111A, ET-111C and LAVA-F to the factory settings?

 

Press and hold the button on the receiver for 30 seconds.

After 30 seconds, all LED displays flash at the same speed and the reset is complete.

Are the ET-111A, ET-111C and LAVA-F receivers in X2D or X3D mode?

 

During installation, the receiver's LED light will flash immediately after it is switched on.

If it flashes twice, then the receiver is in the X2D protocol (not suitable for ET-14A thermostat)

If it flashes 3x, the receiver is in the X3D protocol (suitable for ET14A).

How do I switch the receiver ET-111A, ET-111C or LAVA-F from X2D to X3D?

 

First try to perform a reset. Usually this will fix the problem.

If this doesn't work, do the following:

Turn on the receiver and immediately press the button on the receiver three times quickly.

Now check whether the LED flashes 2x or 3x.

If flashes 3x, the receiver is in X3D mode. This is the correct mode for pairing with the ET-14A thermostat.

eTOUCH ECO - What does the E4 sensor error code mean?

 

This error code can have several causes.

Option 1: No floor sensor has been installed as it is not required. Solution: Go in the menu to: Installer -> Sensor selection -> Set to RMTE (room).

Option 2: The sensor is not connected correctly / has a loose contact. Solution: Check the connections and measure the installation. Please note: Only a certified specialist can carry out this work.

Option 3: The floor sensor does not work. Solution: Let the floor sensor have an ohmic value of 10 kΩ during the measurement. If this differs significantly, the floor sensor is defective and must be replaced. Please note: Only a certified specialist can carry out this work.

Convectors

SERENA ECO - Can the black cable be connected to a plug as grounding?

 

The black cable is a pilot cable for any external control. This must therefore NOT be connected as ground. Only the brown and blue wires may be connected to the SERENA ECO wall convectors. Insulate the black wire with heat shrink tubing if the black wire is not used for the external control.

CP & CL ECO - How do I reset my wall convector?

 

The device is equipped with a control element (dial). Set the device to 5 degrees by turning the control wheel. The temperature is displayed on the floor by means of a projection. Then keep turning until a blinking "RES" is projected onto the floor. Then keep turning until "RES" is continuously projected onto the floor. Then switch the convector off and on again immediately. The reset has now been carried out. The WiFi symbol will now flash on the ground. You now have 3 minutes to connect the app.

CP & CL ECO - Why is my wall convector not connected to the WiFi / app?

 

First, check that the WiFi signal is set to 2.4 GHz and not 5 GHz. The CP ECO or CL ECO only works with 2.4 GHz. Then make sure that no firewall is blocking the connection. If the firewall continues to block the connection, you can open ports 443 and 883 on the firewall. You can run a test by setting up a hotspot on another phone and connecting to your own phone via the set hotspot.

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