Tankless water heater
Tankless water heater for sale on Ireland's largest auction and classifieds sites
Budget picks — under £32
Kitchen faucet function • Water heater instant • Heating product electric - Free postage - New and Used
Easy install under • Bathroom kitchen sink • Dishwashing food washing - Free postage - New and Used
Note this not • Suitable kitchen but • Bathroom addition shower - Free postage - New and Used
Note this not • Suitable kitchen but • Bathroom addition shower - Free postage - New and Used
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Water heater shower • 3000w plug instant • Digital display 220v - Free postage - New and Used
Browse 48 tankless water heater listings currently in our index. Prices range from £11.99 to £243.99, with an average of £58.68. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about tankless water heater →
Note this not • Suitable kitchen but • Bathroom addition shower - Free postage - New and Used
Note this not • Suitable kitchen but • Bathroom addition shower - Free postage - New and Used
Easy install bathroom • Shower allow you • Take warm comfortable - Free postage - New and Used
Quick heating consistent • Performance perfect kitchens • Bathrooms utility areas - Free postage - New and Used
Water temperature ranges • From depending inlet • Flow rate provides - Free postage - New and Used
Instant electric water • Heater i1.26b1mmzkmmzkcz style • Box sizing border - Free postage - New and Used
Instantaneous water heater • Rated power 5500w • Easy install under - Free postage - New and Used
Instantaneous water heater • Easy install under • Bathroom kitchen sink - Free postage - New and Used
Note this not • Suitable kitchen but • Bathroom addition shower - Free postage - New and Used
Easy install bathroom • Shower allow you • Take warm comfortable - Free postage - New and Used
Easy install bathroom • Shower allow you • Take warm comfortable - Free postage - New and Used
Mid-range — £32 to £65
Note this not • Suitable kitchen but • Bathroom addition shower - Free postage - New and Used
Easy install bathroom • Shower allow you • Take warm comfortable - Free postage - New and Used
Instantaneous water heater • Easy install under • Bathroom kitchen sink - Free postage - New and Used
Instant electric water • Seconds this powerful • Heater perfect bathrooms - Free postage - New and Used
3000w electric water • Heater has box • That leakage protection - Free postage - New and Used
Water heater • Has box that • Leakage protection hot - Free postage - New and Used
Modern black square • Waterfall cloakroom basin • Mixer tap sink - Free postage - New and Used
Convenient efficient electric • Water heater 3000w • Heating system provides - Free postage - New and Used
Modern black square • Waterfall cloakroom basin • Mixer tap sink - Free postage - New and Used
Perfect kitchens bars • Schools hospitals communities • Hair salons seamlessly - Free postage - New and Used
Water heater • Highest temperature reaches • 131 why choose - Free postage - New and Used
Five gear power • Adjustable 1100w 2200w • 3300w 4400w 5500w - Free postage - New and Used
Instant hot water • Heater 3kw heating • System tankless electric - Free postage - New and Used
Easily adjust your • Specific needs our • Electric tankless water - Free postage - New and Used
Hello this customer • Return product item • Appears unused installation - Free postage - New and Used
Water heater • 3.5kw 5.5kw heating • System tankless electric - Free postage - New and Used
Premium — over £71
This design not • Only saves energy • But also enhances - Free postage - New and Used
Water heater • 6kw instant electric • Shower kits hot - Free postage - New and Used
This design not • Only saves energy • But also enhances - Free postage - New and Used
Hot water heater • Electric tankless instant • 3000w under sink - Free postage - New and Used
Tankless instant hot • Water heater uses • Liquefied petroleum gas - Free postage - New and Used
Tankless instant hot • Water heater uses • Liquefied petroleum gas - Free postage - New and Used
Air fryer 5.5l • Large oven 1800w • Low fat healthy - Free postage - New and Used
Makeup desk vanity • Dressing table • Led mirror modern - Free postage - New and Used
Gas type lpg • Pressure 2800 ideal • Off grid living - Free postage - New and Used
Top quality this • Tankless water heater • Lpg liquefied propane - Free postage - New and Used
Tankless instant water • Heater multi point • Use choose your - Free postage - New and Used
Water heater • Should only used • Liquefied petroleum gas - Free postage - New and Used
Lightweight compact design • Makes easy take • Anywhere refuel propane - Free postage - New and Used
Tankless water heater • 10l portable gas • Regulator provided only - Free postage - New and Used
100 brand new • High quality camplux • Gas hot water - Free postage - New and Used
This eliminates frustration • Waiting minutes hot • Water when taking - Free postage - New and Used
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🔥 Best eBay deals on tankless water heater
See all listings on eBay →These 48 listings for tankless water heater are the lowest-priced items currently in our index. Prices are sorted ascending so you can quickly gauge the market before going further.
Instant Tankless Electric
Kitchen faucet function • Water heater instant • Heating product electric
£12
Electric Hot Water Heater
Easy install under • Bathroom kitchen sink • Dishwashing food washing
£17
3500W Tankless Hot Water
Note this not • Suitable kitchen but • Bathroom addition shower
£24
Everything you need to know about tankless water heater
Whether you are looking for a brand-new or second-hand tankless water heater, eBay offers one of the largest selections available online. With 48 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £11.99, while premium listings can reach £243.99 — giving you a wide budget spread to work with. The average price of £58.68 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.