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Home / Water Heating & Filtration / Gas water heater refurbished & used for sale | For Sale UK
Instant gas hot water - gas,

Instant gas hot water - gas,

£69.99
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18l propane gas tankless - gas,

18l propane gas tankless - gas,

£79.99
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18l instant gas - gas, hot

18l instant gas - gas, hot

£99.99
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Tankless portable gas water - portable,

Tankless portable gas water - portable,

£80.99
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18l lpg propane gas - 8/10/12/16/18l,

18l lpg propane gas - 8/10/12/16/18l,

£100.80
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18l lpg propane gas - 18l, tankless

18l lpg propane gas - 18l, tankless

£88.99
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18l tankless propane gas - tankless,

18l tankless propane gas - tankless,

£92.99
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New 18l instant gas - new,

New 18l instant gas - new,

£88.99
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Evolve 30kw 16l natural - evolve, gas

Evolve 30kw 16l natural - evolve, gas

£339.99
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18l propane gas tankless - gas,

18l propane gas tankless - gas,

£69.99
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18l propane gas - propane, tankless

18l propane gas - propane, tankless

£99.99
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18l propane gas tankless - propane,

18l propane gas tankless - propane,

£70.99
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12l portable instant gas - portable,

12l portable instant gas - portable,

£74.99
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Camplux min gas - l/min,

Camplux min gas - l/min,

£239.99
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16l lpg tankless gas - lpg,

16l lpg tankless gas - lpg,

£185.99
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130000btu 16l tankless gas hot - 130000btu,

130000btu 16l tankless gas hot - 130000btu,

£184.13
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Portable water heater - 6l,

Portable water heater - 6l,

£61.43
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18l propane gas tankless - propane,

18l propane gas tankless - propane,

£83.89
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Tankless gas hot water - tankless, heater

Tankless gas hot water - tankless, heater

£239.99
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Portable lpg propane gas - portable,

Portable lpg propane gas - portable,

£100.79
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18l lpg propane - lpg,

18l lpg propane - lpg,

£95.76
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Tankless gas water - gas,

Tankless gas water - gas,

£82.80
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18l hot water - 8/10/12/16/18l,

18l hot water - 8/10/12/16/18l,

£100.80
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Portable lpg propane - portable,

Portable lpg propane - portable,

£74.99
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18l instant gas - 8-18l,

18l instant gas - 8-18l,

£77.99
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10l 18l lpg tankless gas - gas, hot

10l 18l lpg tankless gas - gas, hot

£105.99
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18l lpg propane - 18l, gas

18l lpg propane - 18l, gas

£74.99
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Lpg 18l portable instant gas - 18l,

Lpg 18l portable instant gas - 18l,

£92.99
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130000btu 16l tankless - gas, hot

130000btu 16l tankless - gas, hot

£185.99
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Camplux mobile gas hot water - gas,

Camplux mobile gas hot water - gas,

£359.99
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Portable tankless gas hot - gas,

Portable tankless gas hot - gas,

£239.99
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Gasland gas water - gas, lpg

Gasland gas water - gas, lpg

£189.99
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18l lpg propane gas - propane,

18l lpg propane gas - propane,

£86.99
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18l tankless lpg water heater - tankless,

18l tankless lpg water heater - tankless,

£92.99
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Chaffoteaux britony gas - chaffoteaux,

Chaffoteaux britony gas - chaffoteaux,

£549.99
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12l lpg tankless gas - tankless, water

12l lpg tankless gas - tankless, water

£74.99
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Camplux nano gas water heater - gas,

Camplux nano gas water heater - gas,

£359.99
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18 20l instant - 8/10/12/16/18/20l, gas

18 20l instant - 8/10/12/16/18/20l, gas

£88.99
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Ideal 171925 gas valve kit - gas,

Ideal 171925 gas valve kit - gas,

£156.70
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Portable lpg hot water - 6l,

Portable lpg hot water - 6l,

£80.99
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12v rv tankless - 12v, l

12v rv tankless - 12v, l

£79.99
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Lpg 16l portable - instant, gas

Lpg 16l portable - instant, gas

£92.99
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18l propane gas tankless - 8l-18l,

18l propane gas tankless - 8l-18l,

£91.99
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Gasland tankless water heater - tankless,

Gasland tankless water heater - tankless,

£209.99
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Hot water heater - hot,

Hot water heater - hot,

£134.40
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New ariston next evo - new,

New ariston next evo - new,

£449.99
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New ariston next evo lpg - new,

New ariston next evo lpg - new,

£384.99
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350 camping shower - 350,

350 camping shower - 350,

£269.99
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Portable propane gas hot - gas,

Portable propane gas hot - gas,

£209.99
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18l propane gas tankless - 8l-18l,

18l propane gas tankless - 8l-18l,

£105.00
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Gasland shower portable - shower,

Gasland shower portable - shower,

£339.99
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Camplux 10l instant - 10l,

Camplux 10l instant - 10l,

£259.99
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Carver cascade mk2 caravan - cascade,

Carver cascade mk2 caravan - cascade,

£48.00
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Water heater gas baxi - heater,

Water heater gas baxi - heater,

£397.79
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Min propane instant - propane, water

Min propane instant - propane, water

£80.99
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Universal battery case - battery,

Universal battery case - battery,

£6.99
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Camplux nano 12v portable - nano,

Camplux nano 12v portable - nano,

£359.99
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Baxi bermuda 552 back - bermuda,

Baxi bermuda 552 back - bermuda,

£52.70
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Ltr gas electric truma - ltr,

Ltr gas electric truma - ltr,

£409.00
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Carver cascade mk2 water - carver,

Carver cascade mk2 water - carver,

£48.00
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Carver cascade water heater - cascade,

Carver cascade water heater - cascade,

£51.99
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Ferroli pegaso eco static - pegaso,

Ferroli pegaso eco static - pegaso,

£312.00
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Navien ncb300 28kw - ncb300, combi

Navien ncb300 28kw - ncb300, combi

£719.68
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Carver cascade water - 2, heater

Carver cascade water - 2, heater

£51.99
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Truma ultrastore gas - truma, &

Truma ultrastore gas - truma, &

£419.00
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20l portable camping water - 20l,

20l portable camping water - 20l,

£125.99
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Propex malaga gas - malaga, 5e

Propex malaga gas - malaga, 5e

£599.99
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Worcester bosch telescopic - bosch,

Worcester bosch telescopic - bosch,

£75.58
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Whale high capacity 13l water - capacity,

Whale high capacity 13l water - capacity,

£795.00
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16l instant hot tankless water - 16l,

16l instant hot tankless water - 16l,

£185.99
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Carver cascade water heater - carver,

Carver cascade water heater - carver,

£46.95
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18l instant gas - 8/10/12/16/18l, hot

18l instant gas - 8/10/12/16/18l, hot

£88.99
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Whale expanse 8lt underfloor - whale,

Whale expanse 8lt underfloor - whale,

£595.00
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18l lpg water heater - lpg, propane

18l lpg water heater - lpg, propane

£92.99
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Whale rapid gas - rapid,

Whale rapid gas - rapid,

£699.95
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Portable lpg hot water - hot,

Portable lpg hot water - hot,

£80.99
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Whale expanse water - expanse, gas

Whale expanse water - expanse, gas

£629.00
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240v gas controls - gas, for

240v gas controls - gas, for

£69.95
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Water heater ignition - rv,

Water heater ignition - rv,

£45.11
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Static caravan cointra cpa - cointra,

Static caravan cointra cpa - cointra,

£64.95
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Gas boiler hot water tea - tea, urn

Gas boiler hot water tea - tea, urn

£9.99
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Carver cascade mk2 water - cascade, 2

Carver cascade mk2 water - cascade, 2

£48.00
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Whale water heater drain - water,

Whale water heater drain - water,

£67.90
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Carver cascade mk2 water - cascade,

Carver cascade mk2 water - cascade,

£46.00
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Ideal vertical flue kit - vertical, 203132

Ideal vertical flue kit - vertical, 203132

£94.30
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Carver cascade caravan water - 2,

Carver cascade caravan water - 2,

£3.95
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Vaillant ecotec pro vuw - ecotec,

Vaillant ecotec pro vuw - ecotec,

£91.99
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Static caravan cointra cpa - cpa, 11

Static caravan cointra cpa - cpa, 11

£64.95
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Carver cascade gas electric - cascade,

Carver cascade gas electric - cascade,

£8.49
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Whale water heater - water, expanse

Whale water heater - water, expanse

£64.99
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Carver cascade water - carver, 2

Carver cascade water - carver, 2

£53.99
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New ariston next evo - 16, ng

New ariston next evo - 16, ng

£473.99
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Vaillant 171175 gas boiler - 171175,

Vaillant 171175 gas boiler - 171175,

£12.99
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Vokera easiflo water heater - easiflo,

Vokera easiflo water heater - easiflo,

£18.99
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Vaillant ecotec service - ecotec, kit

Vaillant ecotec service - ecotec, kit

£92.50
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Britony water heater - water,

Britony water heater - water,

£399.00
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📊96 listings · from £3.95 · avg £176.72
⚠️ These listings were last updated more than 18 days ago. Search for fresh listings

Browse 96 gas water heater listings currently in our index. Prices range from £3.95 to £795, with an average of £176.72. 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 gas water heater →

Try this: sime boiler pump | copper water tank | central heating cleaner | external oil boiler | potterton boiler | gas combi boilers | ideal isar pcb | worcester 24cdi | worcester combi | immersion heater timer

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Everything you need to know about gas water heater

Whether you are looking for a brand-new or second-hand gas water heater, eBay offers one of the largest selections available online. With 96 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 £3.95, while premium listings can reach £795 — giving you a wide budget spread to work with. The average price of £176.72 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.

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