PERCO-ACE™
Direct Contact Water Heating

Up to 99% efficient hot water heating resulting in savings of more than 35% compared with a steam-to-hot-water system.

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Efficient Hot Water Through Direct Fired Heating

The PERCO-ACE delivers instant hot water up to 85°C (185°F) by reducing stack temperatures to as low as 10°C (50°F) in a single efficient unit. As a high-efficiency direct contact water heater, it transfers up to 99% of fuel energy into usable hot water, typically achieving over 35% savings compared with steam-based systems.

PERCO ACE installed with a teal blue overlay
Benefits

A Smarter Alternative to Steam

Steam is highly effective for moving large amounts of energy across a plant, but when a site’s demand is mainly hot water, a high efficiency direct contact water heater instead offers significant advantages. The PERCO-ACE has been designed to deliver greater efficiency over the long term while lowering operating costs.

How it works

Harnessing Heat at the Source

In a direct-contact water heater, cold water enters at the top of the unit and flows across a stainless-steel packing surface. As it descends, the water comes into direct contact with the rising hot products of combustion, absorbing both sensible and latent heat with maximum efficiency.

The heated water is collected at the base and either pumped directly to the process or passed through a plate-and-frame heat exchanger to supply a building heating loop or process fluid. This approach reduces system losses, cools the flue gas to near the cold-water inlet temperature, and maximises heat recovery.

Watermarked PERCO-ACE system diagram showing how it works
Product Specs

Designed to Perform, Built to Last

The following specifications define the key operating parameters and construction features of the PERCO-ACE.

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Capacity:

Suitable for boiler capacities from 100 HP to 100,000 lb steam/hr (1,000 to 30,000 kW), larger capacities available on request

Temperatures:

Maximum flue gas temperatures guaranteed to be no more than 10°F (5°C) greater than the temperature of the incoming water being heated

Construction:

Corrosion-resistant stainless steel

Integration:

Can be installed inside and outside to fit with site requirements

Installation:

Can be installed on both new and retrofit projects

Frequently Asked Questions

Sustainability that pays for itself

Solutions that deliver verified returns from day one.

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Speak to our team

If you are exploring how to cut energy use, reduce emissions or assess the viability of steam, heat recovery or hot water solutions for your site, our team can help you understand what is possible. 

  • Identify where energy is being lost  
  • Understand the most effective efficiency improvements for your site 
  • Gain clear guidance on performance expectations and practical implementation 
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