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

Instant gas hot water - instant,

£69.99
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18l propane gas tankless - propane,

18l propane gas tankless - propane,

£79.99
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18l instant gas hot - hot, water

18l instant gas hot - hot, water

£99.99
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Tankless portable gas water - gas,

Tankless portable gas water - gas,

£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 tankless - gas,

18l lpg propane gas tankless - gas,

£88.99
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18l tankless propane gas water - tankless,

18l tankless propane gas water - tankless,

£92.99
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New 18l instant gas - 8/10/12/16/18l,

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

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

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

£339.99
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18l propane gas - 8l-18l,

18l propane gas - 8l-18l,

£69.99
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18l propane gas - propane,

18l propane gas - propane,

£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 - instant,

12l portable instant gas - instant,

£74.99
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Camplux min gas - 11, water

Camplux min gas - 11, water

£239.99
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16l lpg tankless - gas, hot

16l lpg tankless - gas, hot

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

130000btu 16l tankless gas - 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 - gas,

Tankless gas hot water - gas,

£239.99
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Portable lpg propane - portable, hot

Portable lpg propane - portable, hot

£100.79
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18l lpg propane gas - 8/10/12/16/18l,

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

£95.76
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Tankless gas water heater - 6l,

Tankless gas water heater - 6l,

£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 gas 12l - propane,

Portable lpg propane gas 12l - propane,

£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, hot

10l 18l lpg - tankless, hot

£105.99
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18l lpg propane - lpg,

18l lpg propane - lpg,

£74.99
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Lpg 18l portable instant - instant, gas

Lpg 18l portable instant - instant, gas

£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 - portable,

Portable tankless gas hot - portable,

£239.99
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Gasland gas water - gasland, heater

Gasland gas water - gasland, heater

£189.99
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18l lpg propane - lpg, gas

18l lpg propane - lpg, gas

£86.99
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18l tankless lpg water heater - 18l,

18l tankless lpg water heater - 18l,

£92.99
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Chaffoteaux britony gas - britony, 2

Chaffoteaux britony gas - britony, 2

£549.99
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12l lpg tankless - lpg, water

12l lpg tankless - lpg, water

£74.99
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Camplux nano gas - camplux, heater

Camplux nano gas - camplux, heater

£359.99
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18 20l instant gas - instant,

18 20l instant gas - instant,

£88.99
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Ideal 171925 gas valve - kit,

Ideal 171925 gas valve - kit,

£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 water - l,

12v rv tankless water - l,

£79.99
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Lpg 16l portable - lpg, gas

Lpg 16l portable - lpg, gas

£92.99
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18l propane gas tankless - propane,

18l propane gas tankless - propane,

£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 - water,

Hot water heater - water,

£134.40
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New ariston next - ariston,

New ariston next - ariston,

£449.99
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New ariston next evo lpg - new, x

New ariston next evo lpg - new, x

£384.99
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350 camping shower portable - camping,

350 camping shower portable - camping,

£269.99
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Portable propane gas hot - portable,

Portable propane gas hot - portable,

£209.99
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18l propane gas - 8l-18l,

18l propane gas - 8l-18l,

£105.00
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Gasland shower portable gas - gasland,

Gasland shower portable gas - gasland,

£339.99
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Camplux 10l instant - 10l,

Camplux 10l instant - 10l,

£259.99
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Carver cascade mk2 - mk2, caravan

Carver cascade mk2 - mk2, caravan

£48.00
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Water heater gas baxi - water, model

Water heater gas baxi - water, model

£397.79
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Min propane instant water - 6l/min,

Min propane instant water - 6l/min,

£80.99
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Universal battery case - battery,

Universal battery case - battery,

£6.99
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Camplux nano 12v - camplux,

Camplux nano 12v - camplux,

£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 - cascade,

Carver cascade mk2 water - cascade,

£48.00
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Carver cascade water - cascade,

Carver cascade water - cascade,

£51.99
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Ferroli pegaso eco - ferroli,

Ferroli pegaso eco - ferroli,

£312.00
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Navien ncb300 28kw combi - ncb300,

Navien ncb300 28kw combi - ncb300,

£719.68
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Carver cascade water heater - carver,

Carver cascade water heater - carver,

£51.99
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Truma ultrastore gas - truma, &

Truma ultrastore gas - truma, &

£419.00
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20l portable camping - portable, water

20l portable camping - portable, water

£125.99
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Propex malaga gas electric - 5e, gas/electric

Propex malaga gas electric - 5e, gas/electric

£599.99
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Worcester bosch telescopic - worcester,

Worcester bosch telescopic - worcester,

£75.58
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Whale high capacity 13l - whale, water

Whale high capacity 13l - whale, water

£795.00
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16l instant hot - instant,

16l instant hot - instant,

£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 hot - 8/10/12/16/18l,

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

£88.99
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Whale expanse 8lt - 8lt, underfloor

Whale expanse 8lt - 8lt, underfloor

£595.00
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18l lpg water heater - lpg,

18l lpg water heater - lpg,

£92.99
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Whale rapid gas electric - whale,

Whale rapid gas electric - whale,

£699.95
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Portable lpg hot water - lpg,

Portable lpg hot water - lpg,

£80.99
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Whale expanse water - whale,

Whale expanse water - whale,

£629.00
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240v gas controls for - ac,

240v gas controls for - ac,

£69.95
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Water heater ignition - rv,

Water heater ignition - rv,

£45.11
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Static caravan cointra cpa - static,

Static caravan cointra cpa - static,

£64.95
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Gas boiler hot water tea - water,

Gas boiler hot water tea - water,

£9.99
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Carver cascade mk2 water - carver,

Carver cascade mk2 water - carver,

£48.00
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Whale water heater - heater, drain

Whale water heater - heater, drain

£67.90
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Carver cascade mk2 - carver,

Carver cascade mk2 - carver,

£46.00
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Ideal vertical flue kit 203132 - ideal,

Ideal vertical flue kit 203132 - ideal,

£94.30
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Carver cascade caravan - cascade, 2

Carver cascade caravan - cascade, 2

£3.95
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Vaillant ecotec pro - vaillant,

Vaillant ecotec pro - vaillant,

£91.99
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Static caravan cointra cpa - cointra, 11

Static caravan cointra cpa - cointra, 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 - whale, gas

Whale water heater - whale, gas

£64.99
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Carver cascade water - cascade, 2

Carver cascade water - cascade, 2

£53.99
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New ariston next evo ng - x, 16

New ariston next evo ng - x, 16

£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 - easiflo,

Vokera easiflo water - easiflo,

£18.99
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Vaillant ecotec service - ecotec,

Vaillant ecotec service - ecotec,

£92.50
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Britony water heater fully - 2t,

Britony water heater fully - 2t,

£399.00
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📊96 listings · from £3.95 · avg £176.72

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 | central heating cleaner | external oil boiler | potterton boiler | gas combi boilers | ideal isar pcb | baxi boiler parts | 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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