Built in Finland by Oilon. Family owned since 1961.
If your plant pays to cool product and pays again to heat water for washdown and CIP, you’re buying energy twice. Oilon ChillHeat industrial heat pumps recover that heat and lift it to the temperature your line runs at, up to 120°C with the P Series. O’Brien Energy designs the system and stays on to service it.
Figures from Oilon’s ChillHeat brochure (December 2025) and published references. Results depend on your site.
SOUND FAMILIAR?
Tick any that sound like your site.
That warm air is energy you already paid for. You bought the electricity to run the compressors, and the heat leaves the site for nothing.
The gas side isn’t getting easier. AEMO says southern gas production is falling faster than demand. Longford, which has historically supplied about two thirds of east coast gas, is due to retire at the end of 2033.
An Oilon ChillHeat heat pump sits between those two problems. It pulls heat out of your cooling circuit, which takes load off your refrigeration, then lifts it into hot water at the temperature your process needs. Your boiler stays for steam and peaks.
PROVEN IN FOOD AND DRINK PLANTS
Oilon ChillHeat heat pumps run in food and beverage plants across Europe and Asia. Here are six from Oilon’s published reference list.
Sunshine Dairy | China
75°C
881 kW of heating and 604 kW of cooling from one unit
Junlebao Dairy | China
75°C
600 kW of heating and 450 kW of cooling
Nongfu Spring, bottled water | China
85°C
831 kW of heating and 565 kW of cooling
Kraft Heinz | China
90°C
2,050 kW of heating and 1,500 kW of cooling
Guanfang Juice | China
85°C
Source water at 30°C lifted to 85°C
Ahascragh Distillery | Ireland
115°C
Total system COP of 6.5. Energy inputs a third of traditional technology.
Source: Oilon industrial heat pump references. Installations outside Australia.
Australian food plants are moving too. ARENA is already funding heat pump projects at Australian food manufacturers.
Milk cooling and CIP running on the same shift.
Glycol on one side. Bottle washing and CIP on the other.
Cold rooms and cooking lines under one roof.
Big refrigeration loads and plenty of hot water for washdown.
Not sure? If your site runs refrigeration or process cooling and uses hot water, it’s worth a look.
Run the heat pump on your process cooling and it heats and cools in the same cycle. That’s where heat pumps reach their best efficiency.
Washdown and CIP water usually run well under 100°C. The S Series covers up to 85°C, or 90°C on the S600B to S1000B. The P Series goes to 120°C.
Units connect in series or parallel, so the system can match your site today and expand later. Several units also give you redundancy.
Oilon Global Monitor watches the system in the cloud, so engineers can troubleshoot remotely and cut unplanned downtime.
Modbus RTU comes standard. Modbus TCP, Profibus, Profinet, EtherNet/IP and BACnet are available as options.
Options go as low as GWP 1.37 with R1234ze(E). The 120°C units run R1233zd(E), GWP 3.88, safety class A1.
Choose by temperature first, then by size. Our engineers confirm the final pick with Oilon’s Selection Tool.
P30 to P450, 9 models
Up to 120°C
S180 to S2000, 11 models
Up to 85°C
90°C on S600B to S1000B
Maximum hot water temperature for each ChillHeat range.
Yellow zone: typical food plant hot water duties such as washdown and CIP (about 60 to 90°C, varies by site).
Final temperatures and capacities depend on your site. We confirm them during the assessment.
Fill in the form or call us. An O’Brien Energy engineer contacts you to plan the visit.
We measure what your cooling plant rejects and what your hot water duties need.
Energy saved, emissions cut, payback and any funding that fits, in one business case.
O’Brien Energy handles the install and commissioning, then services the system from your nearest branch.
YOUR LOCAL PARTNER
O’Brien Energy is Oilon’s partner in Australia. We work inside Australian food plants every day, from branches in Sunshine West, Prestons, Heathwood and Malaga. Recently that included a 12 MW industrial steam plant for a major Sydney food manufacturer.
So we can tell you which duties should stay on steam and which can move.
Your business case is built on measured data.
We check which grants and schemes fit, then help with the application.
We run accredited boiler operator training as RTO 45484.
Usually not. The common approach is to move the hot water duties onto the heat pump first and keep the boiler for steam and peak loads. Your assessment shows where that line sits for your plant.
Up to 120°C with the P Series running refrigerant R1233zd(E). The S Series goes to 85°C, or 90°C on the S600B to S1000B. Final temperatures depend on your site conditions.
Anything that rejects steady, warm heat. Refrigeration condensers, process cooling water, wastewater and flue gas are all candidates. The warmer and steadier the source, the better the efficiency.
Heat pumps typically deliver 3 to 4 units of heat for every unit of electricity. Use the heating and cooling together and the number climbs. Oilon’s distillery project in Ireland runs at a total system COP of 6.5.
R1233zd(E), used for 120°C, is safety class A1, which means non flammable. R1234ze(E) is class A2L, mildly flammable, and Oilon offers a ventilated enclosure and gas detection for it.
Sometimes. Programs open and close, and eligibility depends on your site. State schemes such as the NSW Energy Savings Scheme and Victorian Energy Upgrades may apply to some heat pump projects. We check what’s open when we assess your plant and can manage the application.
It depends on your loads and temperatures, and on how much existing pipework we can use. The site assessment gives you a real number and a payback period before you commit to anything.
O’Brien Energy, from branches in VIC, NSW, QLD and WA. The system can also be monitored remotely through Oilon Global Monitor.
FREE SITE ASSESSMENT
We’ll measure what your plant throws away against what your hot water needs, then tell you straight whether a ChillHeat heat pump pays its way.
What you get from the assessment
Built in Finland by Oilon. Engineered and serviced in Australia by O’Brien Energy.
Takes about a minute.
An O’Brien Energy engineer will contact you to arrange a time.
We only use your details to arrange your assessment. Read our privacy policy.