ADI-NOx

High efficiency accords reduced carbon emissions, and extremely low NOx concentration in the flue gases reduces the potential for damage to the environment through acid rain. Utilising a radiant premix burner fed with precisely premixed gas and air, the ADI-NOx ADI range of boilers have extremely low harmful emissions with NOx as low as 4.0mg/kWh at 0% O².

The ADI boilers are available in three different forms, condensing versions for highest efficiency, low temperature versions for higher output and standard versions which are designed with the replacement boiler market in mind where compact dimensions and the ability to operate at 11°C Δt system design conditions are key features.

ADI boilers are designed to operate with a Δt between 10 to 15K, however for installations where a wider system load circuit temperature drop is desired, this is simply achieved via temperature modification  through blending in the low loss header.

The compact dimensions of the ADI boilers allow important space to be liberated for other purposes in new build projects. And when used as replacement appliances in existing buildings, the space saving nature of these boilers makes for ease of application, with even the possibility to make an almost complete installation of the boilers as replacements, before the original units are taken out of service. Thus reducing the time needed to bring the system back to operation and thereby reducing inconvenience in a building that remains occupied during the works.

Boiler replacement can pose extreme difficulties, particularly when attempting to retrofit for some of the very narrow dimensioned gas fired atmospheric appliances which were very popular during the period from the 1970’s to the early 2000’s. Some appliances with outputs up to 100kW were just 376mm wide. The  ADI boilers provide the solution with models of up to 110kW output which are only 350mm wide.
Modulating burner output with turndown to 30% of maximum output and the ability to create cascade/modular installations of up to 12 boilers gives the potential for extremely high seasonal efficiency.

Range Overview

ADI-NOx ADI HT
With outputs from 104 to 905kW, the HT range are compact high output standard type premix combustion boilers fabricated from carbon steel with gross seasonal efficiency of not less 86.6% making them suitable for new and existing buildings projects. Particularly suited to replacement works where the original system design conditions were based upon 82/71°C flow/return temperatures.

ADI-NOx ADI CD
With outputs from 68 to 905kW, the CD range are compact high output fully modulating condensing type premix combustion boilers fabricated from stainless steel. Their ability to operate on systems with narrow Δt makes them ideally suited to use with underfloor heating systems or systems that have been designed using traditional UK system design parameters. The gross seasonal efficiency of the CD boilers is not less than 92.59%.

ADI-NOx ADI LT
With outputs from 104 to 905kW, the LT range are compact high output low temperature type modulating premix combustion boilers, fabricated from stainless steel with gross seasonal efficiency of not less 92.3% making them suitable for new and existing buildings projects. Particularly suited to projects where a condensing boiler is not strictly required but the return water temperature may be below the dew point temperature of the flue gases at times, and there may be some flue gas condensation produced.