Dimensions
Capacity
Control Panel
Sound Level
Modulation Rate
EfficiencyEwa, with a compact and aesthetic design, ensures efficiency, safety, and perfect combustion through the "Smart Gas" technology.
| TECHNICAL DATA | UNIT | Ewa 20 | Ewa 24 | ||||||
| Gas Circuit / Gas Type | NG / G20 | NG / G25 | LPG / G30 | LPG / G31 | NG / G20 | NG / G20 | LPG / G30 | LPG / G31 | |
| Gas Supply Pressure | 20 | 25 | 30 | 37 | 20 | 25 | 30 | 37 | |
| Gas Consumption at Minimum / Maximum | m³/h | 0.36 /2.12 | 0.42 / 2.58 | 0.13 / 0.71 | 0.81 / 0.14 | 0.37 / 2.38 | 0.43 / 2.85 | 0.11 / 0.73 | 0.11 / 0.92 |
| Seasonal Space Heating Energy Efficiency Class | A | A | |||||||
| Seasonal Space Heating Energy Efficiency (ŋs) | % | 91.2 | 91.2 | 90.5 | 90.5 | 92 | 92 | 92 | 92 |
| Useful efficiency at rated heat output and high temperature regime(2) (ŋ4) | % | 87.6 | 87.6 | 88.3 | 88.3 | 87.6 | 87.6 | 87.6 | 87.6 |
| Useful efficiency at 30% of rated heat output and low temperature regime(1) (ŋ1) | % | 96.4 | 96.4 | 95.5 | 95.5 | 97.5 | 97.5 | 97.5 | 97.5 |
| Radiator Circuit / Temperature Selection Range High / Low | °C | 25 - 80 / 25 - 47 | 25 - 80 / 25 - 47 | ||||||
| Minimum / Maximum Heat Output Pn (50/30 °C) | kW | 3.7 / 20.6 | 3.6 / 21.1 | 3.5 / 20.4 | 3.6 / 20.6 | 3.6 / 25 | 3.6 / 25 | 3.6 / 24.7 | 2.9 / 25 |
| Minimum / Maximum Heat Output (Pn) (80/60 °C) | kW | 3.4 / 19.4 | 3.3 / 19.6 | 3.4 / 19.5 | 3.4 / 19.5 | 3.0 / 23.7 | 3.0 / 23.7 | 3.2 / 23.6 | 2.5 / 23.7 |
| Operating Pressure (Maximum/Minimum) | bar | 3 / 0,5 | 3 / 0,5 | ||||||
| Expansion Tank Volume | L | 7 | 7 | ||||||
| Maximum Pump Delivery Head (Q = 0 m3/h)(at constant flow rate) | mH2O | 6,2 (700 l/h) | 6,2 (700 l/h) | ||||||
| Max. Pump Flow Rate | m³/h | 2,3 | 2,3 | ||||||
| Domestic Hot Water Circuit / Temperature Adjustment Range | °C | 35 - 60 | 35 - 60 | ||||||
| Water Heating Energy Efficiency Class / Declared Load Profile | A / XL | A / L | A / XL | ||||||
| Water Heating Energy Efficiency | % | 85 | 81 | 84 | |||||
| Gas Consumption at Maximum | m³/h | 2,47 | 2,83 | 0,73 | 0,94 | 2,55 | 3,051 | 0,78 | 0,98 |
| Modulation Rate | 15/100 | 15/100 | 15/100 | 15/100 | 14/100 | 14/100 | 14/100 | 14/100 | |
| Maximum / Minimum DHW Heat Input | kW | 23.7 / 3.5 | 23.7 / 3.5 | 23.7 / 3.5 | 23.2 / 3.5 | 25.8 / 3.5 | |||
| Max. Domestic Hot Water flow rate Minimum / Maksimum (Δt: 30 °C) | L/min | 1,5 / 11 | 1,5 / 12 | ||||||
| DHW Pressure (Minimum / Maksimum) | bar | 0,5 / 10 | 0,5 / 10 | ||||||
| Electricity Circuit / Electricity Supply / Protection Index | IP | [230 V +%10; -%15] / IP X 5D | [230 V +%10; -%15] / IP X 5D | ||||||
| Electricity Consumption (Min./Max.) | Watt | 57 / 86 | 55 / 95 | ||||||
| Exhaust Gas Circuit | G20 | G25 | G30 | G31 | G20 | G25 | G30 | G31 | |
| Maximum Flue Lenght (Ø60/100 mm) [Horizontal* / (Vertical*] | m | 10 / 11 | 10 / 11 | ||||||
| (80/60 °C) Exhaust gas temperature (Min. / Max.) | ºC | 55 / 78 | 55 / 78 | 54 / 78 | 54 / 78 | 69 / 71 | 65 / 70 | 57 / 70 | 60 / 70 |
| (50/30 °C) Exhaust gas temperature (Min. / Max.) | ºC | 37 / 57 | 37 / 57 | 41 / 55 | 41 / 55 | 49 / 51 | 48 / 49 | 43 / 57 | 47 / 51 |
| Weighted Value of NOx (GCV) (NOx Class: 6) | mg/kWh | 33 | 33 | 38 | 38 | 20 | 19 | 42 | 31 |
| General / Dimensions (H x W X D) | mm | 725 x 420 x 288 | 725 x 420 x 288 | ||||||
| Sound Level | dB (A ) | 52 | 52 | ||||||
| Net Weight / Packed Device Weight | kg | 30 / 31,8 | 32,6 / 33,8 | ||||||
| Type | B23, B23P, B33, B33P, B53, B53P, C13, C33, C43, C53, C63, C83, C93, C(10)3 | ||||||||
| (1) Low temperature means for condensing boilers 30 ºC, for low temperature boilers 37 °C and for other heaters 50 °C return temperature (at heater inlet). (2) High temperature regime means 60 °C return temperature at heater inlet and 80 °C feed temperature at heater outlet. | |||||||||
| * At the maximum flue distance, the flue length should be reduced by 1 meter for every 90° bend and 0.5 meter for every 45° bend. | |||||||||
The Gas Adaptive Technology automatically detects gas quality and prevents improper combustion, ensuring safety. Proper combustion maximizes energy efficiency, utilizing the full potential of the gas.
The use of wide-channel, seamless, single-coil stainless steel domestic hot water heat exchangers ensures a long lifespan.
With a wide modulation range of 1:7, it can reduce its power, allowing you to adjust its capacity according to your needs and save both gas and electricity.
By selecting the pre-heating parameter in your combi, the waiting time for hot water usage is minimized.
With a hot water capacity of up to 14.4 liters per minute, it allows you to simultaneously use hot water from two taps.
Featuring brass and composite components that are resistant to thermal stresses and corrosion, ensuring a long lifespan and years of trouble-free use.
The Ewa series boilers can be easily installed in limited spaces and can be comfortably used in all living areas.
An illuminated, wide information screen that allows you to access information about heating, hot water, pressure, and adjustments.
Operates very quietly thanks to high level of insulation.
Achieving the best class level, which is level 6, for NOx as stipulated by the ErP Directive, helps reduce air pollution by lowering harmful NOx emissions.
High Protection System/bypass circuit and prevents the pump from overworking
