Heating Oil Treatments

Heating Oil Additives for Cold-Weather Protection and Peak Performance

At Fuel Ox, we believe that what you put into your tank matters, not just for your heating system, but for your home, your health, and the planet. That’s why we’ve developed a range of heating oil additive solutions built for efficiency, protection, and long-term reliability. H.O.T. is designed for indoor tanks and Star Plus and Star Plus Bio contain everything H.O.T. does but also has a super powerful anti-gelling agent for outdoor tanks.

Whether you rely on an indoor tank, an underground oil storage tank, or a bio heating oil blend, our additives are designed to treat and protect your fuel system against the harshest winter conditions. These treatments help resolve gelling issues, protect key components, and improve overall fuel economy, making them a smart investment for year-round performance.

Protecting Your Heating System from Cold-Weather Gelling

When temperatures drop, heating oil thickens. Without the right additive, fuel gelling can occur, causing blocked lines, clogged filters, and restricted flow through your oil tank, especially in outdoor or fiberglass setups. The result? A clogged or frozen nozzle, injectors, or pump, and potentially the dreaded “No Heat” call.

Fuel Ox heating oil additives help prevent ice formation, control waxing, and keep fuel flowing in extreme cold weather. Our cold-weather fuel oil formulas reduce the cold filter plugging point, or CFPP, which is critical for keeping your furnace or boiler operating smoothly when you need it most. Whether your tank consists of galvanized steel, fiberglass, or dual-wall systems with an inner tank and outer tank consists of steel, our products help protect your entire system from seasonal damage.

Improving Combustion and Efficiency

More than just a freeze-prevention tool, a Fuel Ox heating oil additive also enhances combustion quality. Our products work to reduce soot, oxidation, and sludge buildup inside your burner, filters, and delivery lines. By cleaning these areas and improving the air-fuel mixture, you get more heat output from each gallon and fewer emissions.

The result? A cleaner-burning fuel oil with fewer contaminants, longer-lasting components, and increased efficiency. That means better fuel economy, fewer breakdowns, and extended heating system life. Whether you use diesel-based blends, bio heating oil, or standard oil, a quality oil treatment like ours makes a meaningful difference in performance.

Anti-Oxidants to Reduce the Acidity Caused by Bio-fuels

Since nearly all heating oil today contains a bio-fuel blend, from 5% in NJ, PA, MA, and MD to 10% in NY and RI, with some companies voluntarily blending as high as 50%, it is critical that your fuel is properly treated to counteract the negative effects associated with biodiesel. 

One of the most serious issues is the increase in fuel acidity, which can corrode valves, damage seals, and lead to costly system failures. All Fuel Ox heating-oil treatments contain powerful antioxidants specifically designed to neutralize this acidity and prevent corrosion, helping ensure your system remains clean, efficient, and problem-free.

Removes Water That Can Destroy Your Tank From the Inside Out

Fuel Ox Star Plus, Star Plus Bio, and H.O.T. all contain powerful emulsifiers that safely disperse and eliminate moisture in your heating-oil tank by allowing it to be burned off with the fuel. This not only removes the corrosive water layer that can sit at the bottom of the tank and gradually eat through the metal, but also eliminates the environment in which bacteria thrive, helping prevent sludge formation, clogged lines, and filter blockages.

Choosing the Best Heating Oil Additive

When it comes to choosing the best heating oil additive, it’s important to consider both your system and the conditions it operates in. At Fuel Ox, we’ve carefully formulated our additives with a combination of performance-boosting chemicals and environmentally conscious ingredients. Key features of our heating oil treatments include:

• Anti-gel compounds that prevent fuel gelling and keep fuel moving in sub-zero temperatures.
• Powerful detergents that break down gum, sludge, and soot in your filters, burner, and lines.
• Water dispersant agents and emulsifiers that remove moisture, helping prevent corrosion, bacterial growth, and oxidation in your tank.
• Antioxidants to reduce harmful acidity in your fuel
• Ingredients that stabilize fuel during year round storage, especially in underground oil storage tanks or larger capacity units.

Each Fuel Ox formula is reviewed and tested under real-world conditions, offering a dependable solution to the most common issues that occur in residential and commercial heating oil systems.

Heating Oil Treatments That Support a Greener Future

We don’t just treat fuel, we treat the bigger picture. Our heating oil additives are developed with sustainability in mind. Whether it’s a cleaner combustion process, reduced emissions, or fewer replacement components, our products aim to protect not just your system, but also the health of the environment.

We use proprietary formulations that are tough on sludge, corrosion, and gelling, but easy on the planet. Fewer emergency service calls, better flow, and cleaner operation mean fewer resources produced and used over time. It’s all part of our commitment to creating additives that are good for your system, good for your wallet, and better for the environment.

Trusted by Industry and Available to Everyone

Since 2014, Fuel Ox has helped resolve complex fuel system problems for farmers, contractors, municipalities, and now homeowners. We’ve proven that high-performing oil treatment can be both powerful and responsible. Whether you manage commercial delivery routes or just want reliable protection for your home tank, we have a solution that fits.

Our products are compatible with most types of heating oil, including bio heating oil, blends, and traditional fuel oil. We offer international shipping, a simple 30-day return policy, and easy online shopping so anyone, anywhere can get access to superior winter protection for their heating oil systems.