--- product_id: 507749026 title: "– Just Dose It Central Heating Dosing Tool, Radiator Dosing Funnel - For Adding Chemicals Like Fernox Central Heating Inhibitor, Sludge Remover, Leak Sealer & Sentinel X100" brand: "heatlab" price: "€ 31.40" currency: EUR in_stock: true reviews_count: 12 category: "Heatlab" url: https://www.desertcart.pt/products/507749026-just-dose-it-central-heating-dosing-tool-radiator-dosing-funnel store_origin: PT region: Portugal --- # Mess-free, spill-proof design Universal BSP radiator fitting 35 seconds dosing speed – Just Dose It Central Heating Dosing Tool, Radiator Dosing Funnel - For Adding Chemicals Like Fernox Central Heating Inhibitor, Sludge Remover, Leak Sealer & Sentinel X100 **Brand:** heatlab **Price:** € 31.40 **Availability:** ✅ In Stock ## Summary > 🔥 Dose it fast, dose it right — the pro’s secret weapon! 🔧 ## Quick Answers - **What is this?** – Just Dose It Central Heating Dosing Tool, Radiator Dosing Funnel - For Adding Chemicals Like Fernox Central Heating Inhibitor, Sludge Remover, Leak Sealer & Sentinel X100 by heatlab - **How much does it cost?** € 31.40 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/507749026-just-dose-it-central-heating-dosing-tool-radiator-dosing-funnel) ## Best For - heatlab enthusiasts ## Why This Product - Trusted heatlab brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable & Reliable:** Sturdy plastic build designed for professional use, ensuring years of dependable service. - • **Mess-Free Operation:** No spills or drips—just a clean, hassle-free chemical addition every time. - • **Upgrade Your Toolkit:** Streamline your plumbing and heating tasks with this essential dosing tool favored by pros. - • **Rapid Dosing Efficiency:** Complete central heating chemical dosing in just 35 seconds—save time on every job. - • **Universal Compatibility:** Fits practically all radiators with a BSP fitting, making it your go-to tool for any system. ## Overview The Central Heating Dosing Tool by Heatlab is a professional-grade, spill-proof device designed to add inhibitors and chemicals to central heating systems quickly and cleanly. Featuring a universal BSP radiator fitting, it fits nearly all radiators and completes dosing in just 35 seconds. Lightweight and durable, this tool is highly rated by plumbers and heating engineers for its efficiency and ease of use. ## Description From the brand Innovative heating tools for plumbers, heating engineers, and DIY enthusiasts. Useful plumbing tools Visit the store Useful plumbing tools Visit the store Review: Worked Beautifully! - I usually dose through the filter on the boiler but decided to finally give this a go and so glad that I did. As I have been told, (time and time again!), it is a lot easier. (No need to dwell on how many times I have been told-off, for fiddling with the filter) Just isolated one of the radiators and drained down enough for the fluid I was putting in. Opened both sides up top, (not sure if you have to do this but somebody mentioned having trouble with slow fill through the funnel, when trying to pour 1.6L of fluid. I only had 1L to do but rather than just open the bleed vent, decided to take out completely, for improved reduction of air resistance). Popped this in and poured, away. Fluid went down in seconds. So yeah. In my experience, this worked really well. Feels study and well made. Screwed in, easily and I experienced no leaks. Not the cheapest I have seen but far from the most expensive. Seems a bit costly for what it is and I could probably Macgyver something, for cheaper but who needs that hassle and with the quick delivery; it was a happy buy. Should get years of use out of it and it will certainly be my go to for any future dosing, from now on. Review: Very good - Very good. So much easier than trying to use a funnel and a cloth to bung the hole. ## Features - Save Time - 35 Seconds To Dose A Central Heating System With Sentinel, Fernox Or Other Chemicals Easily Add Inhibitor For Central Heating Or Sentinel Leak Sealer - Just Dose It Radiator Dosing Tool Makes Life Easy - No Spills Or Mess, Just A Simple Radiator Drain Tray Is Needed Or Plumb Tub Is Needed. - Just Dose It Radiator Inhibitor Filler Tool Is Universal, Using A Bsp Radiator Fitting For Easy Compatibility, Fits Practically All Radiators. Which Means Adding Sentinel X100 Inhibitor Is Easy. - Upgrade Your Plumbing & Heating Tools, Get Just Dose It Heating Device/Radiator Inhibitor Filler Tool To Easily Add, Central Heating Cleaner, Sentinel X400. - Just Dose It Is The Hassle Free Way To Add Chemicals To Your Central Heating System Inhibitor Filling Kit / Central Heating Inhibitor Filling Kit ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BR894VMW | | Batteries Required? | No | | Batteries included? | No | | Best Sellers Rank | 5,852 in DIY & Tools ( See Top 100 in DIY & Tools ) 51 in Central Heating System Accessories | | Colour | Green | | Customer Reviews | 4.6 4.6 out of 5 stars (490) | | Date First Available | 28 Dec. 2022 | | Item Weight | 130 g | | Item model number | 1000111 | | Manufacturer | Heatlab | | Material | Plastic | | Part number | 111000 | | Product Dimensions | 17 x 8 x 6 cm; 130 g | | Specific uses | Professional | ## Product Details - **Brand:** Heatlab - **Capacity:** 0.5 litres - **Colour:** Green - **Material:** Plastic - **Product dimensions:** 8W x 5.1H centimetres ## Images ![– Just Dose It Central Heating Dosing Tool, Radiator Dosing Funnel - For Adding Chemicals Like Fernox Central Heating Inhibitor, Sludge Remover, Leak Sealer & Sentinel X100 - Image 1](https://m.media-amazon.com/images/I/51IGXRnD1EL.jpg) ## Questions & Answers **Q: Can this really dose a radiator with chemicals, eg central heating inhibitor in 17 seconds?** A: 17 seconds ? Only if the radiator has enough empty space to fit in your 0.5~1 litre of chemicals and is not pressurised. That's a most unlikely state of affairs for an operating and well maintained system, which will be full of water and under pressure. So in most cases, NO. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worked Beautifully! *by N***S on 10 September 2025* I usually dose through the filter on the boiler but decided to finally give this a go and so glad that I did. As I have been told, (time and time again!), it is a lot easier. (No need to dwell on how many times I have been told-off, for fiddling with the filter) Just isolated one of the radiators and drained down enough for the fluid I was putting in. Opened both sides up top, (not sure if you have to do this but somebody mentioned having trouble with slow fill through the funnel, when trying to pour 1.6L of fluid. I only had 1L to do but rather than just open the bleed vent, decided to take out completely, for improved reduction of air resistance). Popped this in and poured, away. Fluid went down in seconds. So yeah. In my experience, this worked really well. Feels study and well made. Screwed in, easily and I experienced no leaks. Not the cheapest I have seen but far from the most expensive. Seems a bit costly for what it is and I could probably Macgyver something, for cheaper but who needs that hassle and with the quick delivery; it was a happy buy. Should get years of use out of it and it will certainly be my go to for any future dosing, from now on. ### ⭐⭐⭐⭐⭐ Very good *by M***H on 2 December 2025* Very good. So much easier than trying to use a funnel and a cloth to bung the hole. ### ⭐⭐⭐⭐ Good but not fast as claimed. *by F***E on 21 December 2024* Easy to use, followed instructions which were easy. I drained 1.6 litres (measured) of water to apply 1 litre of treatment. First few fillings of the funnel went in quite quick but then slowed to almost nothing. I’m half way through the bottle and I’ve left it to leave this review. I’m not even sure the whole bottle will go in at this rate. It’s taking several minutes to lower a few mm them I’m going to be in a bind if the funnel doesn’t empty completely what do I do then? Any, easy to use works well but not fast and maybe not as good for 1 litre additive. ## Frequently Bought Together - Just Dose It Central Heating Dosing Tool, Radiator Dosing Funnel - For Adding Chemicals Like Fernox Central Heating Inhibitor, Sludge Remover, Leak Sealer & Sentinel X100 - Plumb Tub - SPI Radiator Draining Tub: Hassle-Free Radiator Draining. Versatile, Compatible with a Wide Range of Radiators - 1.4L Capacity - SPI Green - Sentinel - X100 Inhibitor 1L, Market Leading Heavy Duty Central Heating Inhibitor, Protection Against Corrosion and limescale, ensures Maximum Heating Efficiency and extends System Life, Clear (88000) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/507749026-just-dose-it-central-heating-dosing-tool-radiator-dosing-funnel](https://www.desertcart.pt/products/507749026-just-dose-it-central-heating-dosing-tool-radiator-dosing-funnel) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-04-24*