Chemical Co 00161 16 OZ HOT 4-in-1 Heating Oil Treatment (2 Bottles)

Started using Hots 4n1 years ago. After my first use the look of the filter was much clear, I can see furnace burns so much clear. The HVAC service tech that does my system check for the season said he has started recommending Hots 4n1 to his other customers using heating oil. It removes from to tank water, gel/crud build up in bottom, and removes and prevents wax in the line to the furnace. I feel good from a customer point of view using this as a preventative measure, just put in talk when oil is delivered so when oil is put in tank at same time it mixes really well. Or you can give it to the oil delivery person and ask them to pour it in the tank before they fill the tank. I highly recommend Hots 4n1 AAA+++

Two bottles into a 500 gallon outdoor tank keeps the oil flowing in the dead of winter. 1 bottle into a 250 gallon fill up.

Does the job!

seems to be working great. I have been using this for well over a year now and I haven been having less problems with water in my home heating fuel oil.

Been using this product for years and have never had a problem since.

I have an old tank, with equally old lines. Truth be told, i'll probably need to replace it in the next few years.The entire system had been severely neglected. The tank was super sludgy, and kept clogging the filters and strainers, every few weeks in winter. Water in the lines was causing a coughing, uneven burn, and the boiler was noisy as hell. My boiler guy would come fix things, and it would run smooth for a while, but the root problem was the tank and lines.. he drained some oil at the boiler into a clear jar to show me what was coming out. (obvious sludge and water suspended in the fuel oil.)I was full prepared to get a pricey pricey pricey system flush, drain, de-sludge and refill done. My heating guy is an old timer, oldschool dude, who doesn't charge me half the time if it's something easy and he's in the neighborhood (key point: he's an upstanding and honest fella, not trying to upsell me on things) told me to try this stuff first. Started me out with 2 bottles in a fresh tank, then one bottle per fill up for the rest of the season. See where we end up at the end of the season. If it's still a problem, he'll do the flush. He prefers the slow dissolve though, as it lowers the risk of something getting dislodged and creating a clog that requires replacing the under-cement lines.There's no miracle "I noticed an immediate difference" story here. In fact he warned me i'd likely have to replace the filter catridges and clean the strainers a few times in a relatively short period of time as it de-gummed the tank and lines.However over the course of the next couple of tank-fills, the boiler was working much more quietly... no more "burpipng" or sputtering, and the strainers were staying clean.By the end of the season, the oil coming out at the boiler was clear red, with no signs of water or sludge. Filters are lasting longer, and strainers are squeaky clean upon inspection.I use it every other tank now. About 3-4 bottles per heating season, depending on how cold the winter is. The boiler is the quietest I ever remember it, and when i replaced the filters in preparation for the heating season - left from last year - I probably didn't need to. Minimal gunk.So - it did its job, I'm happy, and will continue to use it.

Oil companies charge a small fortune for home heating oil with protective added. Why make the oil company richer when you can do it yourself for a minimal cost. I make sure to have this on hand with every oil delivery. Just tell the oil delivery person to add it with each tank. Money well spent.

This item work will when put in your oil tank.