Water heater under sink
Water heater under sink for sale on Ireland's largest auction and classifieds sites
Electric tankless instant 3kw - electric, - €50.89
Water heater • Has box that • Leakage protection hot - Free postage - New and Used
Water heater • Has box that • Leakage protection hot - Free postage - New and Used
7000w electric tankless - 7000w, - €74.75
Rated power 7000w • Leakproof electric function • Smart touch three - Free postage - New and Used
Rated power 7000w • Leakproof electric function • Smart touch three - Free postage - New and Used
Electric tankless instant 3kw - tankless, - €50.99
Modern black square • Waterfall cloakroom basin • Mixer tap sink - Free postage - New and Used
Modern black square • Waterfall cloakroom basin • Mixer tap sink - Free postage - New and Used
Electric tankless instant hot - electric, - €50.99
Modern black square • Waterfall cloakroom basin • Mixer tap sink - Free postage - New and Used
Modern black square • Waterfall cloakroom basin • Mixer tap sink - Free postage - New and Used
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3000w electric tankless - electric, - €50.89
3000w electric water • Heater has box • That leakage protection - Free postage - New and Used
3000w electric water • Heater has box • That leakage protection - Free postage - New and Used
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48 listings · from €29.91 · avg €74.5
Browse 48 water heater under sink listings currently in our index. Prices range from €29.91 to €200, with an average of €74.5. 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 water heater under sink →
Electric tankless instant hot - tankless, - €29.91
I2.141a1e32bdbu5d style box • Webkit tap highlight • Color transparent outline - Free postage - New and Used
I2.141a1e32bdbu5d style box • Webkit tap highlight • Color transparent outline - Free postage - New and Used
15l 1500w electric - electric, hot - €73.99
Can installed kitchen • Lounge bathroom anywhere • Capacity 15l rated - Free postage - New and Used
Can installed kitchen • Lounge bathroom anywhere • Capacity 15l rated - Free postage - New and Used
3kw electric tankless instant - tankless, - €50.99
Folding portable walking • Stick seat adjustable • Aluminium cane chair - Free postage - New and Used
Folding portable walking • Stick seat adjustable • Aluminium cane chair - Free postage - New and Used
5500w electric instant hot - electric, - €52.42
Package included mini • Electric water heater • Remote control positioning - Free postage - New and Used
Package included mini • Electric water heater • Remote control positioning - Free postage - New and Used
15l electric instant hot - electric, - €73.99
Capacity 15l after • Installation open water • Inlet valve turn - Free postage - New and Used
Capacity 15l after • Installation open water • Inlet valve turn - Free postage - New and Used
Electric instant water heater - electric, - €69.99
Dafi instantaneous electric • Water heater compact • Energy saving convenient - Free postage - New and Used
Dafi instantaneous electric • Water heater compact • Energy saving convenient - Free postage - New and Used
Electric tankless instant - tankless, - €30.99
- Free postage - New and Used
- Free postage - New and Used
Ariston andris lux - lux, 15l - €65.18
- Free postage - New and Used
- Free postage - New and Used
New ariston andris elite - ariston, wifi - €147.99
Water heater • Combines modern design • Smart technology maximum - Free postage - New and Used
Water heater • Combines modern design • Smart technology maximum - Free postage - New and Used
5kw electric instant hot - 5.5kw, - €119.99
Hot water • Thermomate elex5.5 instant • Heater delivers efficient - Free postage - New and Used
Hot water • Thermomate elex5.5 instant • Heater delivers efficient - Free postage - New and Used
5kw electric instant - electric, hot - €89.98
0.75 mpa one • Way safety relief • Valve will automatically - Free postage - New and Used
0.75 mpa one • Way safety relief • Valve will automatically - Free postage - New and Used
Electric tankless instant hot - electric, - €29.99
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
5500w electric instant - instant, hot - €52.42
Package included mini • Electric water heater • Remote control positioning - Free postage - New and Used
Package included mini • Electric water heater • Remote control positioning - Free postage - New and Used
15l electric instant hot water - electric, - €72.99
Capacity 15l hot • Water tank beautifully • Placed can installed - Free postage - New and Used
Capacity 15l hot • Water tank beautifully • Placed can installed - Free postage - New and Used
Tankless electric instant hot - instant, - €52.40
Five gear power • Adjustable 1100w 2200w • 3300w 4400w 5500w - Free postage - New and Used
Five gear power • Adjustable 1100w 2200w • 3300w 4400w 5500w - Free postage - New and Used
1500w 15l electric instant - instant, hot - €72.99
Can installed kitchen • Lounge bathroom anywhere • Capacity 15l rated - Free postage - New and Used
Can installed kitchen • Lounge bathroom anywhere • Capacity 15l rated - Free postage - New and Used
15l electric instant - 15l, hot - €73.99
Can installed kitchen • Lounge bathroom anywhere • Capacity 15l hot - Free postage - New and Used
Can installed kitchen • Lounge bathroom anywhere • Capacity 15l hot - Free postage - New and Used
15l electric instant hot - electric, water - €73.99
Capacity 15l hot • Water tank beautifully • Placed can installed - Free postage - New and Used
Capacity 15l hot • Water tank beautifully • Placed can installed - Free postage - New and Used
1500w electric tankless - electric, - €73.99
Can installed kitchen • Rated power 1500w • Hot water tank - Free postage - New and Used
Can installed kitchen • Rated power 1500w • Hot water tank - Free postage - New and Used
5kw electric instant 15l - 1.5kw, - €73.99
Capacity 15l hot • Water tank beautifully • Placed can installed - Free postage - New and Used
Capacity 15l hot • Water tank beautifully • Placed can installed - Free postage - New and Used
5kw electric instant hot - electric, - €73.99
Capacity 15l hot • Water tank beautifully • Placed can installed - Free postage - New and Used
Capacity 15l hot • Water tank beautifully • Placed can installed - Free postage - New and Used
5kw 15l electric - 1.5kw, - €73.99
Can installed kitchen • Lounge bathroom anywhere • Capacity 15l hot - Free postage - New and Used
Can installed kitchen • Lounge bathroom anywhere • Capacity 15l hot - Free postage - New and Used
Electric tankless instant hot - tankless, - €50.99
3000w electric water • Heater has box • That leakage protection - Free postage - New and Used
3000w electric water • Heater has box • That leakage protection - Free postage - New and Used
Heatrae sadia hotflo - heatrae, - €200.00
Heatrae sadia hotflo • 10l electric water • Heater brand new - Free postage - New and Used
Heatrae sadia hotflo • 10l electric water • Heater brand new - Free postage - New and Used
7000w electric tankless - 7000w, - €73.99
Rated power 7000w • Leakproof electric function • Smart touch three - Free postage - New and Used
Rated power 7000w • Leakproof electric function • Smart touch three - Free postage - New and Used
New ariston andris 15l 3kw - ariston, r - €139.99
Water heater manufactured • Installed - Free postage - New and Used
Water heater manufactured • Installed - Free postage - New and Used
4500w 6000w electric tankless - 4500w-6000w, - €75.95
Perfect kitchens bars • Schools hospitals communities • Hair salons water - Free postage - New and Used
Perfect kitchens bars • Schools hospitals communities • Hair salons water - Free postage - New and Used
Electric tankless instant - tankless, hot - €73.99
Can installed kitchen • Lounge bathroom anywhere • Rated power 1500w - Free postage - New and Used
Can installed kitchen • Lounge bathroom anywhere • Rated power 1500w - Free postage - New and Used
5kw electric instant - electric, - €73.99
Can installed kitchen • Lounge bathroom anywhere • Capacity 15l hot - Free postage - New and Used
Can installed kitchen • Lounge bathroom anywhere • Capacity 15l hot - Free postage - New and Used
15l 5kw electric instant hot - 1.5kw, - €73.99
Capacity 15l hot • Water tank beautifully • Placed can installed - Free postage - New and Used
Capacity 15l hot • Water tank beautifully • Placed can installed - Free postage - New and Used
Electric instant hot - instant, - €52.40
Specifications color white • Screen material abs • Glass shell aluminum - Free postage - New and Used
Specifications color white • Screen material abs • Glass shell aluminum - Free postage - New and Used
Electric tankless instant hot - tankless, - €36.99
- Free postage - New and Used
- Free postage - New and Used
Electric tankless instant hot - tankless, - €73.99
Can installed kitchen • Lounge bathroom anywhere • Hot water tank - Free postage - New and Used
Can installed kitchen • Lounge bathroom anywhere • Hot water tank - Free postage - New and Used
Electric tankless instant - electric, hot - €31.90
I1.3da9n6rin6rii0 style box • Webkit tap highlight • Color transparent outline - Free postage - New and Used
I1.3da9n6rin6rii0 style box • Webkit tap highlight • Color transparent outline - Free postage - New and Used
5kw electric instant water - electric, - €124.95
Easy installation flexible • Hoses rubber gaskets • Simple connection qualified - Free postage - New and Used
Easy installation flexible • Hoses rubber gaskets • Simple connection qualified - Free postage - New and Used
5kw electric instant hot - electric, - €73.99
Capacity 15l hot • Water tank beautifully • Placed can installed - Free postage - New and Used
Capacity 15l hot • Water tank beautifully • Placed can installed - Free postage - New and Used
Vented under sink electric - vented, - €109.99
Auto urinal sanitisers • Care toilet paper • Dispensers automatic tap - Free postage - New and Used
Auto urinal sanitisers • Care toilet paper • Dispensers automatic tap - Free postage - New and Used
Electric instant hot water - electric, - €52.40
Specifications color white • Screen material abs • Glass shell aluminum - Free postage - New and Used
Specifications color white • Screen material abs • Glass shell aluminum - Free postage - New and Used
15l electric hot water - electric, - €73.99
After installation open • Water inlet valve • Turn faucet hot - Free postage - New and Used
After installation open • Water inlet valve • Turn faucet hot - Free postage - New and Used
5kw electric instant 15l hot - electric, - €73.99
Capacity 15l hot • Water tank beautifully • Placed can installed - Free postage - New and Used
Capacity 15l hot • Water tank beautifully • Placed can installed - Free postage - New and Used
15l electric tankless instant - electric, - €73.99
Can installed kitchen • Lounge bathroom anywhere • Capacity 15l hot - Free postage - New and Used
Can installed kitchen • Lounge bathroom anywhere • Capacity 15l hot - Free postage - New and Used
New ariston andris elite wifi - andris, - €135.99
Water heater • Combines modern design • Smart technology maximum - Free postage - New and Used
Water heater • Combines modern design • Smart technology maximum - Free postage - New and Used
Shioucy electric instant water - electric, - €89.99
- Free postage - New and Used
- Free postage - New and Used
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Everything you need to know about water heater under sink
Whether you are looking for a brand-new or second-hand water heater under sink, 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 €29.91, while premium listings can reach €200 — giving you a wide budget spread to work with. The average price of €74.5 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.