Gas heating is currently the most frequently used solution on the market, so from the customer's perspective, choosing the right boiler is one of the key decisions. Advice on this matter should be provided by an experienced installer, which is you.
If you want to meet the expectations of every customer, you need to stay up to date. For this reason, we would like to present the modern ONNLINE condensing boiler.
See Onnline condensing boilers at the Onninen wholesaler
Gas furnace - when ecology goes hand in hand with... a clean boiler room
Taking into account the growing interest of customers and their expectations in terms of reliability, savings and safety, ONNINEN, in cooperation with the Polish manufacturer of heating devices (Termet), introduced a modern Onnline condensing boiler to the market.
Customers are perfectly aware that in the case of gas heating, ecology goes hand in hand with comfort of use, and this means a clean boiler room and no need to store fuel. However, gas boilers have even more advantages that are worth mentioning to a potential customer. A huge advantage in this case are room thermostats (room temperature controllers) , which increase thermal comfort by controlling the temperature. Additionally, the devices have a weather function built into the controller, which, after connecting an external temperature sensor, allows the central heating supply temperature to be adjusted to the current outside temperature. The greatest benefit of its use is always supplying the heating installation with the amount of heat needed to maintain the expected temperature in the house set on the controller panel.
Online condensing boilers
The Onnline boiler family includes three models:
- Online Mono with a power of 25 kW (single-function),
- Online Mono with a power of 35 kW (single-function),
- Onnline Duo with a power of 25 kW (dual-function).
These devices are perfect for both radiator and underfloor heating installations, as well as for preparing domestic hot water. Thanks to a wide modulation range (11%-100%), you can eliminate heat losses that escape into the chimney and reduce heating expenses.
Device dimensions: height: 750 mm, width: 400 mm, depth: 349 mm (25 kW) and 379 mm (35 kW).
The image below shows the arrangement of connections at the bottom of the boiler:
See Onnline condensing boilers at the Onninen wholesaler
The extremely well-thought-out design of the devices makes them user-friendly not only for the user, but also thanks to easy and convenient installation for the installer and service technician. The use of top-shelf technical components and high quality of workmanship allowed the boilers to be covered by a 7-year warranty period . This provides many benefits, including: professional care of an Authorized Termet Service Technician, regular inspection of the device and confidence and comfort of using the boiler.
The design of the device is friendly to the installer and service technician for several reasons. The compact dimensions of the boiler and easy access to components are certainly a great advantage. It is also important that the boiler has a built-in concentric adapter with Ø60/Ø100 mm measuring stubs. In addition, the device has a built-in exhaust gas sensor of 115 degrees Celsius, which also enables connection to plastic air-combustion systems. The Onnline condensing boiler can be diagnosed very quickly using a smartphone or tablet, after connecting the service module, which enables service support with a mobile application.
Condensing boilers and their impact on the environment
Condensing boilers from the Onnline series are also environmentally friendly. The latest generation stainless steel heat exchanger and the BLUEJET burner used in them guarantee very low NOx (nitrogen oxide) emissions, which is why these boilers are classified as the highest class, i.e. 6. Thanks to this, ONNLINE gas boilers are an ideal solution in the fight against smog . Optimized management of boiler operation is possible thanks to cooperation with room temperature controllers. We can use a simple on/off regulator or choose a variant that gives more possibilities, such as using a 0-10 V controller or a regulator with Open-Therm communication. The boilers can be controlled via a smartphone or tablet thanks to a free application. This possibility is made possible by using the Round control system available in the offer.
ONNLINE condensing boilers and their additional advantages
Some things are just worth knowing. If you still have doubts about Onnline boilers, pay attention to the following facts:
- room heating efficiency: A,
- water heating efficiency: A,
- high-efficiency circulation pump – standard (EEI≤0.23) with speed modulation and automatic air vent,
- very high DHW comfort at Δt=30°C, up to 13 l/min (applies to combi boilers),
- thermal efficiency - 108%,
- high degree of protection IPX4D - can be placed close to water (over a bathtub, washbasin, sink),
- built-in concentric adapter with measuring stubs with a diameter of Ø60/Ø100
- possibility of weather control (heating curve adjustment).
That's it for the summary. Want to learn more? We invite you to follow our blog ! Professional advice is our strong point!
Online boilers can be controlled by:
 |  |  |  |
| Control using your smartphone | Control using a tablet | Regulator with communication | Weekly regulator, programmable |
| Round control package - Open-Therm communication | EvoHome control package - Open-Therm communication | Type CR 11011 | Termet ST-292 V3, Termet ST-292 V2 |