Nesta Plus
High Efficiency Condensing Boilers
01
04
Nesta Plus
High Efficiency Condensing Boilers
This class leading design of the Nesta Plus with large volume primary water ensures maximum heat extraction. These features allow a large increase in power with minimal increase in the boiler footprint, the perfect solution when plantroom space is at a premium. The high volume of heating water ensures boiler stability and maximum heat extraction, making the Nesta Plus the perfect solution for any application with a high output requirement but limited plantroom space.
6
NOx class:
108
%
Thermal efficiency up to:
10:1
Modulation ratio
PERFORMANCE
| heat input (net) G20 | kW | 77 - 530 |
| heat input (net) G31 | kW | 124 – 530 |
| heat output at 80/60°C G20 | kW | 74,1 - 516 |
| heat output at 80/60°C G31 | kW | 120 - 515 |
| heat output at 50/30°C G20 | kW | 82,2 - 567 |
| heat output at 50/30°C G31 | kW | 132 - 556 |
EFFICIENCY
| heating efficiency 80/60°C | % | 96,3 - 97,4 |
| heating efficiency 50/30°C | % | 106,8 - 107 |
| useful efficiency at 30% (return 30°C) | % | 108 |
| seasonal efficiency | % | 93 |
GENERAL
| water content | l | 444 |
| gas category | I2E(S), I2E, I2H, I2ELL, I2HS, I2N, I2EK, I3P, I2E(R), II2E3P, II2E(S)3P, II2EK3P, II2H3P, II2L3P, II2E+3P, II2E(R)3P, II2Esi3P, II2Er3P | |
| gas type | G20 - G25 - G25.1 - G25.3 - G31 | |
| chimney type(s) | B23 - B23p - C43 - C53 - C63 - C83 | |
| CO emission | mg/kWh | 31,1 |
| gas flow rate (G20) | m3/h | 7,6 - 52,1 |
| gas flow rate (G31) | m3/h | 5,1 - 20,7 |
| NOx class | 6 |
DIMENSIONS
| boiler width (A) | mm | 865 |
| boiler height (B) | mm | 1970 |
| boiler depth (C) | mm | 1555 |
| empty weight | kg | 835 |
CONNECTIONS
| air inlet | mm | 250 |
| gas connection | in | Flange DN 65 Class PN 6 |
| water outlet | in | Flange DN 80 Class PN 16 |
| water inlet | in | Flange DN 80 Class PN 16 |
| chimney connection | mm | 200 |
| condensate drain | mm | 26,7 |
Certificates (1)
Current technical manuals (4)
Sales Brochures (1)
BIM (2)
Key Features & Benefits
- Stainless steel heat exchanger
- Self-cleaning flue ways
- Internal circuit piping in welded stainless steel
- Low pressure drop
- Compact dimensions
- Reduced maintenance
- Lifting points for transportation and positioning
- Low NOx
Key Features & Benefits
- Stainless steel heat exchanger
- Self-cleaning flue ways
- Internal circuit piping in welded stainless steel
- Low pressure drop
- Compact dimensions
- Reduced maintenance
- Lifting points for transportation and positioning
- Low NOx