Nesta Chrome

High Efficiency Condensing Boilers

Nesta Chrome - series of condensing wall hung boilers, with outputs from 60 to 150 kW, perfect for new installations or redevelopment of high end residential and commercial plantrooms.

The technology behind the Nesta Chrome results in excellent performance, making it the perfect choice for the users to enjoy low operating costs with a high level of functionality. This is reason why the NESTA Chrome has become the boiler of choice for engineers.


NOx class:

108 %
Thermal efficiency up to:

Modulation ratio up to:


heat input (net) G20 kW 8,2 - 57,5
heat input (net) G31 kW 8,4 - 57,5
heat output at 80/60°C G20 kW 8 - 55,8
heat output at 80/60°C G31 kW 8,2 - 55,8
heat output at 50/30°C G20 kW 8,8 - 60,7
heat output at 50/30°C G31 kW 9 - 60,7


heating efficiency 80/60°C G20/25 % 97,8 - 97,1
heating efficiency 80/60°C G31 % 97,8 - 97,1
heating efficiency 50/30°C G20/25 % 107,9 - 105,5
heating efficiency 50/30°C G31 % 107,9 - 105,5
useful efficiency at 30% (return 30°C) G20/25 % 108,4
seasonal efficiency % 93


water content l 19,3
gas category I2E(R), I2E(S), I2E, I2EK, I2ELL, I2H, I3P, II2E3P, II2EK3P, II2Er3P, II2H3P, II2L3P
gas type G20 - G25 - G25.3 - G31
chimney type(s) B23 - B23P - C13(x) - C33(x) - C43(x) - C53(x) - C63(x) - C83(x) - C93(x)
CO emission mg/kWh 64,8
gas flow rate (G20) m3/h 0,85 - 6,10
gas flow rate (G25) m3/h 0,95 - 6,74
gas flow rate (G31) m3/h 0,35 - 2,37
NOx class 6
energy class A


boiler width (A) mm 550
boiler height (B) mm 980
boiler depth (C) mm 511
chimney height mm 85
empty weight kg 71
Nesta Chrome NC 60 WH


At the core of NESTA Chrome boilers is our stainless steel Fire Tube heat exchanger. The use of high-grade stainless steel alloys ensures product durability, reliability, and higher resistance to corrosion and oxidation.

Our unique Fire Tube design of Nesta Chrome heat exchangers is a market proven technology, manufactured and distributed worldwide for many years. Our commitment to improvement and advancement in design has produced one of the most efficient boilers in its class.


Fire Tube heat exchanger

One of the major advantages of NESTA Chrome Fire Tube heat exchanger is the self-cleaning feature. The unique design and orientation of the heat exchanger allows the condensate to run down the inside of the heat exchanger tubes and cleans any possible traces of combustion residue. This function allows the boiler to maintain maximum efficiency throughout the lifespan, leading to reduced running costs and maintenance for the end user.

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
  • Very quiet operation
  • Low NOx

Evolved ECU flexibility

Intuitive for both the user and the engineer complete with weather compensation functionality. The integrated AIC Electronic Control Unit (ECU) can manage up to 3 direct or mixed circuits and one circuit for DHW production via an external storage cylinder with anti-legionella function when installed with additional control accessories. It can also manage up to 6 boilers in cascade and has connectivity for regulation and remote control.


The Nesta Chrome boiler is designed to work in cascade, up to a maximum of 6 boilers and a maximum output of 900 kW.

Our cascade system is easy to install thanks to the prefabricated stainless steel hydraulic kits and accessories manufactured by AIC.

The perfect solution for medium and large installations where the heating demand fluctuates according to building usage.



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