From revolution to evolution.

GOLD saw the light of day 25 years ago. Back then, it was an all-new concept. Today, we venture the claim that it has evolved into a complete range of air handling units. Development is in GOLD’s DNA, and now we’re taking the next step. 

Top-connected units are ideal when you need to free up valuable floor space. There’s nothing new in that. But the air flow capacity of top-connected units in the market to date has failed to cater for large premises. Until now, that is. 

Every now and then, there’ll be projects where neither top-connected nor side-connected units meet the requirements due to various factors. So, we’ve resolved that problem too.

We’re celebrating 25 years of evolution, and are presenting the new GOLD Top and GOLD L concept!


If space is limited, a top-connected unit may well be a handy solution, but because the unit air flow capacity was formerly not sufficient to cater for large interiors, the solution has tended to be to install an extra unit in order to meet demand. That is now a thing of the past.

With the new GOLD Top range, the air flow capacity has increased by more than 50% for our top-connected units with a rotary heat exchanger (GOLD RX Top) and our top-connected units with a counterflow heat exchanger (GOLD PX Top) have been boosted to provide more than double the air flow capacity of similar solutions in the market.

Which means it is now possible to achieve space-saving installations while catering for bigger premises.

New GOLD Top

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GOLD L-concept

Until now, a smaller unit was sufficient for compliance with energy performance requirements, and there was plenty of space for side-fed duct connections. But to meet current energy efficiency requirements and comply with the Energy-related Products (ErP) Directive, a physically larger unit is needed. The L-concept makes this achievable - in existing fan rooms.

The modularity of GOLD is key, and is what enables ducts to be connected vertically and horizontally. This saves shaft space throughout the property. The L concept is the right solution if the outdoor air intake is at the side, but you want to draw exhaust air upwards so as to minimise the risk of short circuiting and odour transfer. As ever, you can choose from a rotary heat exchanger and a counterflow heat exchanger.

This is the GOLD L concept

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