Prema 35
Industrial Heating Oil
Prema 35 provides a top-quality consistent fuel, meeting the BS2869:2023 Class I specification. You may know this product already as Therma 35, but it is now available to purchase directly from Prema Energy.
Proud to supply
Take control of your industrial & commercial heating costs
Processed, reclaimed and heavy fuel oils may appear cheap in pence per litre, but the costs of maintenance issues and downtime soon add up to more than the headline industrial heating oil prices.
Prema 35 Industrial Heating Oil ensures no production downtime or unplanned shutdowns, and comes at a consistently competitive cost, with options for fixed and index-linked pricing to put you in control.
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Reliable Performance
Over 200 million litres of Prema 35 have been supplied to satisfied customers. Prema 35 Industrial Heating Oil prevents maintenance issues like filter and line blockages, fouling of heat transfer surfaces and sooty emissions.
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Control Costs
The controlled cost of Prema Heating Oil means easier, clearer budgeting. With a price that remains reassuringly stable, with an extremely competitive price-per-kWh.
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Drop-in replacement
Prema Heating Oil offers a drop in replacement for systems designed for diesel, kerosene, HFO, PFO and more.
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BS2869:2023 Class I Specification
Blended specifically for use in industrial heating oil systems, this commercial heating oil provides 100% reliable heat all year round.
Industrial Heating Oil Costs
Prema 35 provides controllable, predictable costs for commercial operations. It contains the same calorific value as diesel, yielding identical heat output at a lower purchase price.
As an industrial heating oil, it is a fully rebated fuel, meaning it is not subject to the same tax duty rate as standard diesel.
Prema Energy Commercial Fuel Delivery Services
Prema Energy provides a consultation service to assess site requirements and ensure the optimum fuel is put forward. Our service infrastructure includes:
- National coverage with fast turnarounds.
- Dedicated account managers.
- Scheduled delivered services based on daily pricing.
- Automated tank monitoring systems.
- Emergency heating oil deliveries.
- Bulk delivery options ranging from 500 litres up to 36,000+ litres.
- Affordable heating oil prices available all year round.
Industrial Heating Oil Costs and Expenditure Control
Prema 35 Industrial Heating Oil provides a controllable and predictable cost structure for industrial heating operations. The financial benefits of specifying this fuel span across taxation, operational efficiency, and procurement strategy.
Duty Status
As an industrial heating oil, Prema 35 is classified as a rebated fuel. It is not subject to the same duty rate as standard Diesel:EN590, immediately reducing procurement costs for commercial operations.
Thermal Output vs. Expenditure
The fuel delivers a net specific energy of 43 to 43.7 MJ/kg. This provides the same calorific value and heat output as standard diesel, achieving equivalent thermal performance for a lower purchase price.
Zero Capital Expenditure Requirements
Prema 35 is a drop-in replacement for other heating oils. It requires zero burner modifications, eliminating any capital expenditure associated with changing fuels.
Cold Properties
A Cold Filter Plugging Point of -12°C all year round prevents fuel waxing in cold weather, meaning the entirety of the purchased volume remains usable year-round.
Downtime Prevention
The reliability of the fuel ensures zero downtime, mitigating the financial losses associated with interruptions to production or commercial processes.
Procurement Strategy and Hedging
Prema Energy offers options to hedge fuel and secure contract volumes, enabling precise long-term budget forecasting. Additionally, our team of consultants provides bespoke advisory services on fuel procurement to ensure maximum financial value is achieved.
Cost Management & Automation
This functions alongside our daily pricing structure, automated tank monitoring, and scheduled deliveries to prevent the premium costs associated with emergency fuel orders.
Comparing Prema 35 to Standard Gas Oil
Both fuels meet BS 2869:2023 standards, but Prema 35 (Therma 35) is formulated explicitly for heating systems.
| Feature | Prema 35 (Therma 35) | Standard Gas Oil |
|---|---|---|
| Drop-in replacement | Yes | Yes |
| BS 2869:2023 compliant | Yes | Yes |
| Optimised for heating use | Yes | No |
| FAME content | Zero | 7% |
Commercial Sector Applications for Prema 35
Prema 35 Industrial Heating Oil is specified strictly for use as a heating oil across multiple commercial and industrial sectors. Suitable applications include:
Abattoirs and food producers
These facilities require consistent high temperatures for sanitation, washdown protocols, and thermal processing. Prema 35 provides the necessary continuous heat output for intensive daily operations.
Agricultural sites and grain feeders
Grain drying and large-scale agricultural heating require high-volume thermal energy. The high net specific energy of 43 to 43.7 MJ/kg ensures efficient bulk drying.
Distilleries
The distillation process relies on precise, continuous thermal input. Prema 35 maintains consistent burner performance to support continuous production cycles.
Data centres
Facilities requiring independent, off-grid thermal energy for specific climate control or backup heating systems utilise Prema 35 to maintain required environmental parameters.
Off-grid commercial sites
Commercial operations without access to the national gas grid require reliable bulk liquid fuel. Prema 35 is fully miscible with existing heating oils and provides a stable solution for long-term storage and continuous use.
Asphalt production and quarries
Heating aggregate and bitumen demands significant and sustained heat. The fuel provides powerful heating energy to maintain the temperatures required for heavy-industrial processing.
Commercial drying processes
Facilities operating continuous drying equipment benefit from low emissions and a tight specification during extended operational hours.
Manufacturing facilities
Industrial production lines utilise large boiler systems for process heat. Prema 35 serves as a rebated, cost-controlled alternative to standard gas oil for these heating systems.
Public sector buildings
Large off-grid public facilities require dependable space heating and hot water generation. The -12°C Cold Filter Plugging Point ensures that fuel flow and heating performance remain unaffected by cold weather.
The benefits of Prema 35 Industrial Heating Oil
Quality Control and Manufacturing
Prema 35 is manufactured in ISO 9001 accredited facilities. All batches are sampled and tested at independent laboratories to ensure the fuel meets the specification. This consistent quality allows for accurate forecasting of the fuel volumes required for industrial applications.
System Protection and Component Quality
The use of reclaimed, heavy, or processed fuel oils (HFO, PFO) is a primary cause of downtime in industrial heating systems. Prema 35 Industrial Heating Oil is blended exclusively from refinery components. This prevents damage to fuel pumps, eliminates filter and line blockages, and stops fouling of heat transfer surfaces.
Emissions and Directive Compliance
The fuel has a low sulphur content of less than 0.1% , ensuring compliance with the Medium Combustion Plant Directive. For facilities transitioning from HFO or PFO, Prema 35 acts as a drop-in replacement that resolves high carbon and soot emissions. Our technical team provides consultation on the transition process.
Wholesale Delivery and Account Management
Procuring fuel wholesale directly from Prema Energy controls supply costs. The commercial delivery infrastructure monitors site levels to maintain fuel supply, whilst providing clients with a dedicated account manager and direct access to technical advice.
Low-Temperature Performance
The specification features excellent cold properties, preventing fuel from waxing during winter temperatures. t The fuel does not require heated storage
Commercial Heating Oil FAQs
Prema Heating Oil, also known as Prema 35, is a drop-in replacement for diesel and other industrial heating oils, specifically designed for use in commercial boiler applications, such as those found in factories, warehouses, distilleries and other industrial settings. It is also suitable for space heating systems and dryers.What is Prema Heating Oil?
Prema Heating Oil is strictly prohibited for use in mobile or stationary plant machinery. It is an industrial heating oil intended solely for use in heating applications. It must be stored separately from diesel and other fuels used in vehicles, plant and electricity generation.
- Space heating and central heating: Apartment blocks, schools, universities, hospitals, government buildings, hotels, factories, and commercial buildings.
- Industrial boiler plants: Food and beverage manufacturing facilities, dairies, distilleries, and animal feed mills.
- Drying and commercial heating: Grain dryers, metal and glass processing, quarries and asphalt manufacture.
- Other industrial heating oil applications which currently use diesel, kerosene or heavy, processed and reclaimed oils (PFO, HFO etc.)
- Winter-Grade Performance: Prema Heating Oil boasts a low Cold Filter Plugging Point (CFFP) and pour point, making it suitable for use throughout the year, even in the coldest winter months. This eliminates the need for seasonal fuel switching, reducing operational complexity and minimizing the risk of fuel-related issues.
- Enhanced Stability: Prema Heating Oil is formulated to resist microbial contamination and waxing, ensuring consistent fuel flow and preventing potential equipment damage caused by clogged pipes and filters.
- Cleaner Emissions: Say goodbye to sooty emissions. Prema Heating Oil is clean burning, eliminates smoke and soot and reduces toxic emissions.
- Reduced Maintenance Issues: No fouling of heating plates or filter and line blockages. Reduced downtime.
- Superior Quality: At Prema, we meticulously control the entire fuel production process, ensuring the highest quality standards are met at every stage.
Making the switch to Prema Heating Oil is straightforward. It’s fully miscible and can be easily mixed with existing diesel stocks. You can simply top up your tank and continue your industrial heating applications without interruption.
Our team of technical experts are here to ensure a smooth switch to Prema Heating Oil. We can:
- Evaluate your existing systems to ensure they are compatible with your new fuel.
- Inspect your storage tanks and advise whether they would benefit from a clean prior to switching.
- Help you assess whether Prema Heating Oil will solve any existing problems like sooty emissions or maintenance issues.
- Offer price risk management strategies to help with budgeting.
- Advise on any minor adjustments which will help you get the most out of your new fuel e.g. burner settings.
Prema Heating oil offers excellent value. Our customers typically find they save a significant amount of money compared to their previous fuel. Our consistent quality also means they know exactly how much fuel they will need to give the heat they require.
If you currently use diesel for heating applications you will see your costs fall dramatically by switching to a dedicated heating oil.
We also offer price risk management options to help with budgeting.
No. Prema 35 is strictly for use as a heating oil. It must not be used as a road fuel or to operate any engine, motor, or machinery.
No. Prema 35 operates as a drop-in replacement with identical physical properties to diesel, so no requirement for burner modifications just a visit from your combustion engineer to fine tune the burner and thus achieve maximum combustion efficiency.
The fuel features a Cold Filter Plugging Point of -12°C. This specification ensures performance is completely unaffected by cold weather.
Unlike diesel oil, Prema 35 contains zero biodiesel or FAME, thus has a long shelf life compared to the three months recommended for diesel.
