Protherm Tiger Condens 20/26 KKZ 42

Product detailed description

Protherm Tiger Condens 20/26 KKZ 42
- wall-mounted condensing boiler with a built-in storage tank
- storage tank volume: 42 l
- boiler output: 2.5 - 20.0 kW

With the new condensing boiler Tiger Condens you get a heating system that won't let you down. Discover with us the advantages and benefits of top-of-the-range condensing technology for comfortable hot water preparation and reduced heating costs.

NEW DESIGN OF TIGER CONDENS BOILERS

NEW FEATURES

 

New FlameFit optimal combustion technology - higher efficiency, lower flue gas emissions, lower gas consumption, a technology focused on optimal combustion of different types of gas supplied from various sources with different quality and composition. 

 

New casing design - a renewed design of the boilers (casing, control panel), while the footprint and connection dimensions were kept the same as in the previous version of the boilers, to make quick and easy boiler replacement easier.

 

New control panel design - the appearance of the panel matches the look of the new eBUS controllers, touch buttons, a backlit display, simple and intuitive operation and setup, whether for the customer or for the service technician.

 

New Isodyn3 intelligent storage tank heating technology - new intelligent heating of built-in storage tanks, guaranteeing exceptional comfort of DHW supply. A tried and patented technology. Even greater energy savings than with the previous Isodyn2 heating technology.

 

"Smart shower" function - the combi boiler guarantees comfortable DHW preparation while showering, so that even during an interruption of DHW supply to the shower (while lathering up), it still waits for the next DHW draw-off and does not switch to heating even if there is a demand (it waits 3 minutes).

 

Accessory connectivity - simple connection and quick attachment of external control accessories such as an internet gateway and/or a wireless room controller, without the need to open the boiler casing, even for the end customer.

 

Compatibility with the latest eBUS controllers - the appearance of the control panel matches the look of the new eBUS controllers, similar operation, and easy handling.

 

NEW TECHNOLOGIES OF TIGER CONDENS BOILERS

 

FlameFit technology - guarantees permanent and automatic optimization of gas combustion, which reduces gas consumption and also keeps flue gas emissions low. And all this regardless of the quality of the given type of gas. In addition, FlameFit technology supports lowering the boiler's minimum output and also increases its modulation range. 

 

The new FlameFit technology consists mainly of

placing a special ionization electrode just

above the surface of the burner. By applying a voltage, an electric

current flows through the flame between the electrode and the burner,

the magnitude of which depends on the quality of the flame. 

- with intelligent heating of the built-in storage tank

- guarantees exceptional comfort of hot water supply by the wall-mounted boiler itself

- now also with an improved "intelligent way of heating storage tanks" for even greater energy savings

5 key advantages of IsoDyn3 technology:

1. Exceptional DHW flow rate for a wall-mounted boiler (up to 210 L of hot water at 40°C over 10 min)

2. A storage tank reheating time of 5 minutes for the next draw-off of another 210 L of hot water

3. High temperature stability of the drawn-off water, regardless of the number of simultaneously open draw-off points

4. Fast delivery of hot water to the draw-off point (especially at low draw-offs), minimal waiting time (saving time and wasted water)

 

5. New: intelligent storage tank heating - a new storage tank heating technology only at times when hot water is required according to the household's habits, which saves energy and thus also the costs of DHW heating

 

EASY AND INTUITIVE OPERATION

Operation is as simple and intuitive as operating your smartphone. The control panel shows you what your consumption is, what temperature the water is, or when a service inspection is needed. The Mipro Sense weather-compensated controller has the same control panel, so you will have all the information and functions easily available.

 

ACCESSORIES - New room and system controllers

 

The new range of eBUS controllers has a similar appearance to the boilers' control panel:

 

• MiPro Sense: a system controller for standard use in more extensive heating systems

 

 

• MiSet: wired-connection or wireless room controllers for weather-compensated control of single-circuit heating systems (with an outdoor temperature sensor connected as an optional accessory)

 

Note: Accessories are not included in the package, they can be ordered additionally.

 

PARAMETERS

	Tiger Condens 20/26 KKZ 42
Heating
Energy class for heating	A
Output at 80/60°C temperature gradient	2.5 - 20.0 kW
Output at 50°C/30°C temperature gradient	2.8 - 21.9 kW
Heating water flow temperature control range	15 - 80 °C
Max. working pressure	0.3 MPa (3.0 bar)
Heating water expansion vessel	12 l
NOx class	6
Domestic hot water preparation
Maximum output when preparing DHW	26.0 kW
Range of DHW flow temperature control	45 - 65 °C
DHW flow rate limiter	12 l/min
Permitted operating pressure of cold potable water	0.03 - 1.0 MPa (0.30 - 10.0 bar)
Required connection pressure of cold potable water	0.2 MPa (2.0 bar)
Minimum DHW flow rate	1 l/min
Specific flow rate D (ΔT = 30 K)	18.5 l/min
DHW storage tank volume	42.0 l
DHW expansion vessel	2 l
Electrical parameters
Voltage/frequency	230 V/50 Hz
Maximum electrical power input	115 W
Power input in standby mode	2 W
Electrical protection rating [IP]	IPX4D
Dimensions
Gas connection	G 1/2"
Heating connections	G 3/4"
Cold/hot water connections on the boiler side	G 3/4"
Safety valve connection	15 mm
Condensate drain hose	21.5 mm
Dimensions of the boiler (width/height/depth)	470/ 893/ 514 mm
Weight (without packaging, without water)	55 kg
Weight, in standby (filled) state	104 kg

Frequently asked questions

• How exactly do I choose the output of a PROTHERM condensing boiler? The basis is the calculated heat loss of the heated building (most reliably from the project documentation or an energy certificate). If you don't have a project, you can estimate roughly 60-100 W per m² of floor area for a commonly insulated house built after 2000, or 100-150 W/m² for an older, uninsulated house - the exact figure varies depending on the number of floors, ceiling height, number and quality of windows, and building orientation. A boiler oversized for the required output switches on and off more often (so-called cycling), which shortens its lifespan and reduces efficiency; an undersized boiler, on the other hand, cannot sufficiently heat the house on frosty days.
• Why is a condensing boiler more economical than a classic one? A condensing boiler additionally makes use of the heat hidden in the water vapor produced when burning gas - in a classic boiler this vapor leaves unused through the chimney, while in a condensing boiler it is cooled below the so-called dew point, the vapor condenses, and the released heat is returned to the heating circuit. Thanks to this, condensing boilers achieve an efficiency of approximately 105-110% relative to the calorific value of the gas, compared to the usual 85-92% for classic boilers.
• What type of flue gas discharge does this boiler need? Most modern condensing boilers are so-called turbo boilers (with a sealed combustion chamber) and require a coaxial (concentric) or separate flue gas discharge and combustion air supply routed through an exterior wall or roof - so they do not need a functional chimney. You can find the exact type and maximum length of the discharge (according to the 60/100 or 80/125 mm diameter) in the technical documentation for the specific model, or consult our customer service.
• What does the ErP energy class shown for the boiler mean? This is a mandatory efficiency label for heating appliances under the EU ErP (Ecodesign) directive, similar to the energy labels on refrigerators. Condensing boilers commonly achieve class A, or higher in combination with room controls (e.g. A+ when using weather-compensated control and a room thermostat).
• What is a cascade connection of boilers? This is the connection of several boilers into one system so that together they cover a higher output than a single boiler can - suitable for larger buildings (apartment buildings, commercial premises). The system switches on additional boilers gradually according to current demand, achieving high efficiency even with fluctuating heat consumption.
• Can I install and connect this boiler myself? No. Connection to the natural gas supply, the electrical network, and the flue gas discharge is by law exclusively the responsibility of a person with the appropriate qualification (most often an authorized service technician of the given brand or a gas appliance inspection technician). After installation, the boiler must be commissioned by the manufacturer's authorized service, which is usually also a condition for the warranty to be valid.
• What about service and warranty? Most manufacturers require a regular annual service inspection by an authorized service provider so that the warranty remains valid even after its standard expiry (an extended warranty with regular servicing is common especially for the brands Vaillant, Protherm, and Viessmann). You can find the exact warranty conditions in the warranty card supplied with the boiler.
• What is included in the delivery of this specific product? The exact package contents (the boiler itself, possibly a domestic hot water cylinder, room controls, and other accessories in the case of a set) are stated in the product name and in its technical parameters above on this page.