Hot Water Generation Fueled by Natural Gas to Boost Energy Savings


Unilever Thai Holdings Limited
Ice Cream Plant


Lardkrabang Industrial Estate
Bangkok, Thailand


Unilever was interested in replacing their outdated steam and heat exchanger system to optimize the production process in their ice cream plant. Armstrong International’s local representative, Alpha Group, recommended installing a complete hot water system to replace the existing system.

Scope of Work:

Armstrong supplied an Armstrong Flo-Direct® Complete Thermal Exchange (CTE) water heating package to produce hot water at 185°F (85°C) with a VFD unit to pump the heated water into process. An Armstrong MegaMix E50W control valve mixed hot and cold water, and supplies water at 140°F (60°C) for washdown process.


By using a direct-gas fired water heater, Unilever has calculated fuel savings of more than 30% when compared with the old system. Armstrong’s Flo-Direct® has also helped Unilever to reduced their carbon footprint by decreasing CO2 emissions by 612 tons per year. In addition, Unilever enjoyed a return on investment within 14 months of installation.

~ Asia
Food & Beverage
Solution type: 
Hot Water Generation
Unilever Thai Holdings