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The ATAG i-Series gas condensing boilers offer outstanding comfort and efficiency. The i-Zone boiler is "heat pump ready" and seamlessly integrates with the ATAG Energion M heat pump as well as other heat pump systems. Its wall-mounted design ensures reliable heating and provides plenty of hot water quickly. Whether you need to fill a bathtub fast or enjoy a high-flow shower, the ATAG i-Zone handles it effortlessly.
The stainless steel heat exchanger, the "heart" of the boiler, is its most critical and sensitive component. ATAG uses high-quality stainless steel (RVS), which is resistant to corrosion and wear while ensuring maximum heat transfer. This not only reduces maintenance requirements but also lowers heating costs. Even after 15 years, the efficiency of the P-Series remains as high as on the first day of use.
The ATAG One is a smart thermostat that learns and adapts to your schedule. Thanks to its switch-on optimization, it ensures your home is heated precisely when needed—completely tailored to your preferences.
The EC models (Economizer) differ from the standard C version due to Tapwater Technology. An additional (patented) heat exchanger in the flue system preheats the incoming cold water before it reaches the stainless steel heat exchanger, where it is heated to the desired temperature. This results in an exceptionally high hot water efficiency while also reducing energy consumption and CO₂ emissions.
| Feature | Value |
|---|---|
| Brand | ATAG |
| Supplier Code | TY36E50H |
| EAN Code | 8719874612708 |
| Width | 440 mm |
| Height | 700 mm |
| Depth | 275 mm |
| Number of Phases | 1 |
| Material Quality | Stainless Steel (RVS) |
| Flow/Return Connection | Compression fitting (Knel) |
| Nominal Voltage | 196 – 253 V |
| Frequency | 50 Hz |
| Closed System | Yes |
| Nominal Hot Water Power | 40.1 kW |
| Nominal Upper Heat Load for Hot Water | 42.1 kW |
| Nominal Lower Heat Load for Hot Water | 37.9 kW |
| Hot Water Energy Efficiency | 96 % |
| SEER (Standard Conditions) | 94 |
| Capacity Profile | XXL |
| Heating Energy Efficiency Class | A |
| Hot Water Energy Efficiency Class | A |
| Nominal Hot Water Diameter | 1/2" (15) |
| Additional Power Consumption (ELmax) | 0.038 kW |
| Efficiency at High Temperatures (n4) | 88.6 % |
| Standby Power Consumption (Psb) | 0.004 kW |
| Standby Heat Loss (Pstby) | 0.047 kW |
| Built-in Economizer | Yes |
| Max. Hydrogen Blend with Natural Gas | 20 % |
| Low-Calorific Natural Gas Compatibility | Factory setting |
| High-Calorific Natural Gas Compatibility | Manually adjustable |
| Compatible with Propane | Conversion kit required |
| Compatible with Hydrogen | Conversion kit included |
| Nominal Cold Water Diameter | 1/2" (15) |
| Minimum Hot Water Flow Rate | 1.5 l/min |
| Built-in Pump Control | Yes |
| Nominal Lower Load | 28.8 kW |
| Nominal Upper Load | 32 kW |
| Minimum Operating Pressure | 1 bar |
| Minimum Return Temperature | 20 °C |
| Maximum Gas Pressure | 60 mbar |
| Hot Water Capacity at 60°C | 11.5 l/min |
| Integrated Weather-Controlled Regulator | Yes |
| Built-in Expansion Vessel | No |
| Max. Flow Temperature | 85 °C |
| Max. Operating Pressure | 3 bar |
| Integrated Pressure Relief Valve | Yes |
| Condensate Drainage | Flexible |
| Nominal Flue Pipe Diameter | 60 mm |
| Modulating Burner Control | Yes |
| Nominal Power at 50-30°C | 31.1 kW |
| Suitable for Natural Gas | Yes |
| Gaskeur HR Certified | Yes |
| Control Signal On/Off | Yes |
| OpenTherm Control Signal | Yes |
| Operation as an Open System Possible | Yes |
| Conversion Kit Required | Yes |
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