Hydra Heating Oil Additive

Hydra Heating Oil Additive
Pack Size: 100mlPack Size: 250mlPack Size: 500ml
Pack Size: 1 LitrePack Size: 5 Litre
Our Price:  £10.45(Inc. 20% VAT)(£8.71 Exc. VAT)

Fuel Additives Problem Solver

Brand:  HYDRA

  (23 Reviews)
  • Contains heavy duty detergents, cleans burner nozzles and injectors.
  • Removes accumulated soot deposits, solubilises sludge in tanks.
  • By improving combustion reduces oil consumption by up to 10%.
  • Ideal for Aga , Rayburn and Range Master cookers.
  • 250ml treats up to 1,250 Litres.
  • 500ml treats up to 2,500 Litres.

pdf Datasheet (Hydra Heating Oil Additive) - Click here

Vapourising burners as found in Aga, Rayburn and Range Master cookers are very sensitive to carbon and soot build-up, it is not unknown for them to soot up every 4-6 weeks. Hydra Heating Oil Additive prevents these deposits from building up, keeping the burners free of soot between services.


For Heavily Contaminated Fuel System
Dilution rate: 1:2500 i.e. 100ml treats 250 litres of fuel.

Refuelling Dose to Protect Clean Fuel System
Dilution rate: 1:5000 i.e. 100 ml of treats 500 litres of heating oil. Treat oil tanks every time they are topped up.


Most heating boilers are of a pressure jet design which use precise fuel metering through narrow shaped spray channels. Injector deposits mean reduced fuel flow. Whereas 100% clean injectors give optimal fuel spray pattern. Each finely dispersed particle of fuel is surrounded by many molecules of air (20% oxygen) ensuring a more complete burn. Which in turn gives you better fuel economy, reduced emissions and improved boiler durability.


Hydra Heating Oil Additive contains heavy duty detergents prevents the formation of and removes existing deposits from burners and injectors and heat exchangers. In the oil tank safely dissolves years of corrosive sludge back into the fuel where it's burned away. While creating a protective barrier to stop the sludge gunk from coming back!


Using Hydra Heating Oil Additive upgrades standard heating oil to a premium standard for heating oil. The boiler fires easier with reduced soot and fuel consumption. Better combustion means less deposits on burners and heat exchanger.


All our products are manufactured to the highest international specifications at our UK plant.

Average Rating (23 Reviews):  
Write a Review and share your opinions!

Friday, 13 November 2020  | 

Have been buying fuel additive from hydra for some time now. Excellent service and the additive really helps zx


This review has not been appraised.

Heating oil additive
Sunday, 26 January 2020  | 

Certainly makes a difference


This review has not been appraised.

heating oil additive
Tuesday, 17 December 2019  | 

Very speedy response and delivery.
Additive well packaged.


18 of 18 people found this review helpful.

Heating oil additive
Thursday, 12 December 2019  | 

Had my boiler serviced & was recommended to use an additive as there was some sludge in the bottom of the tank. Since adding Hydra the water & heating seems hotter & the needle on my oil level gauge seems to be going down slower. Not sure if it's just down to the Hydra, but there's definitely a difference. Will be adding it every tank fill now.


1 of 1 people found this review helpful.

Wednesday, 28 August 2019  | 

Thank you for your enquiry regarding my purchasing experience as a customer of Hydra-Fuel Additives.

I have made a number of purchases over recent years and have the process to be easy, efficient and timely in terms of delivery.

The product seems to be effective in my oil burner and I shall no doubt order some more in about three months.


19 of 19 people found this review helpful.

Top shop
Tuesday, 20 August 2019  | 

Promptly delivered, good product at a decent price


24 of 24 people found this review helpful.

Boiler running more quietly
Tuesday, 16 July 2019  | 

Have had problems with my boiler sooting up, and playing up like only firing up for a few seconds at a time. Have had it serviced/cleaned 3 times in the last 7 months. So have had it serviced again and also added this product to the oil tank. So will have to wait and see if it works the only thing I can say the boiler is much quieter and working as it should.


This review has not been appraised.

Very efficient
Tuesday, 9 July 2019  | 

Product arrived very quick and packaged really well. Not used product as yet.


17 of 17 people found this review helpful.

Heating Oil Addative
Tuesday, 25 June 2019  | 

Good price & very quick delivery, time will tell just how good it is.


17 of 17 people found this review helpful.

Good service & product
Thursday, 16 May 2019  | 

Received good advice about what type of additive to buy, and I have noticed that our boiler has not needed any reset for quite some time. Will definitely buy the additive again next year when filling the tank.


7 of 7 people found this review helpful.

Read all 23 customer reviews...

Ques : Is this use for putting straight into home heating oil tank which feeds the central heating boiler only ?

Ans. Yes, Add Hydra heating oil additive straight in to the oil tank in correct dilution then top up with new fuel. Please make sure Fuel tanks being treated should be at least 10% full.

Ques : I've just replaced my oil tank but although a lot of sludge was removed some contaminated oil was transferred back to the new tank. If I'm adding the Hydra Heating Oil Additive to the fuel do I need to add a biocide additive as well our will the Heating Oil Additive do both jobs.

Ans. To play safe we recommend you to add the biocide Hydra FuelPlus as well.

Ques : Can you please advise if the Hydra Heating Oil additive is suitable for use in a solid fuel Rayburn stove that was converted to oil using a Don burner? The burner is not a vaporising burner, but a gravity feed oil drip. I do know that some types of additive are not suitable for this type of burner and just wondered if you had encountered this problem before? Thanks

Ans. This will still work with your type of burner.

Ques : Hi, is the amount of heating oil additive critical ie if I buy some? Is it possible to add too much?

Ans. No. If you overdose it is OK.

Ques : Hi. Can I just check this is for kerosene? Also, why two lids? Thanks

Ans. Yes. One is measuring cylinder & other one is direct pouring.

Ques : Old Rayburn with wick burners does your additive cause any problems with these burners.

Ans. No, it will work OK with these.

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