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Home / Water Heating & Filtration / Gas water heater refurbished & used for sale | For Sale UK
18l lpg propane - lpg,

18l lpg propane - lpg,

£100.80
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Instant gas hot water - instant,

Instant gas hot water - instant,

£69.99
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18l propane gas tankless - gas,

18l propane gas tankless - gas,

£79.99
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Portable lpg propane - propane, gas

Portable lpg propane - propane, gas

£112.79
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18l propane gas tankless - 18l,

18l propane gas tankless - 18l,

£89.99
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New 18l instant gas - 8/10/12/16/18l,

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

£83.99
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Portable lpg propane gas - portable,

Portable lpg propane gas - portable,

£88.99
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Portable water heater - 6l,

Portable water heater - 6l,

£63.23
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18l propane gas tankless - gas,

18l propane gas tankless - gas,

£70.99
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Lpg instantaneous water heater - instantaneous,

Lpg instantaneous water heater - instantaneous,

£83.99
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Thermomate az132 5l - /, portable

Thermomate az132 5l - /, portable

£159.99
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18l instant gas hot - instant,

18l instant gas hot - instant,

£98.00
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18l propane gas - 8l-18l, tankless

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

£67.85
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18l propane gas - 8l-18l,

18l propane gas - 8l-18l,

£72.37
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Tankless gas hot - hot, water

Tankless gas hot - hot, water

£179.99
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18l hot water - 8/10/12/16/18l,

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

£88.80
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Lpg 18l portable instant gas - instant,

Lpg 18l portable instant gas - instant,

£111.99
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Evolve 30kw 16l natural - evolve, gas

Evolve 30kw 16l natural - evolve, gas

£339.99
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Portable water heater - 6l,

Portable water heater - 6l,

£64.43
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18l lpg propane - 8/10/12/16/18l, gas

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

£88.80
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Lpg hot water heater - water,

Lpg hot water heater - water,

£73.89
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Lpg hot water heater - lpg,

Lpg hot water heater - lpg,

£80.99
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18l lpg propane gas - propane,

18l lpg propane gas - propane,

£83.99
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18l instant gas - hot, water

18l instant gas - hot, water

£77.99
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18l lpg propane gas - lpg,

18l lpg propane gas - lpg,

£83.99
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Camplux propane tankless water - propane,

Camplux propane tankless water - propane,

£110.00
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Portable propane gas - portable,

Portable propane gas - portable,

£88.80
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36kw lpg propane - gas, tankless

36kw lpg propane - gas, tankless

£83.99
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Gasland 10l instant gas hot - gas,

Gasland 10l instant gas hot - gas,

£209.99
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Camplux min gas water - 11,

Camplux min gas water - 11,

£239.99
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18l propane gas - 8l-18l, tankless

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

£77.99
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12l hot water heater - hot,

12l hot water heater - hot,

£100.97
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Lpg propane gas - 16/12/6l,

Lpg propane gas - 16/12/6l,

£79.99
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Camplux mobile gas hot water - camplux,

Camplux mobile gas hot water - camplux,

£359.99
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Gasland instant lpg water - gasland,

Gasland instant lpg water - gasland,

£209.99
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Camplux nano gas water heater - nano,

Camplux nano gas water heater - nano,

£359.99
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Camplux nano 12v portable - nano,

Camplux nano 12v portable - nano,

£359.99
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18l tankless propane - tankless,

18l tankless propane - tankless,

£83.99
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Static caravan deluxe - static,

Static caravan deluxe - static,

£249.99
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18l 36kw lpg - hot, water

18l 36kw lpg - hot, water

£112.80
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Lpg 18l portable instant gas - portable,

Lpg 18l portable instant gas - portable,

£107.99
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Min propane instant water - 6l/min,

Min propane instant water - 6l/min,

£80.99
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18l propane gas tankless - propane,

18l propane gas tankless - propane,

£76.98
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18l propane gas - propane, tankless

18l propane gas - propane, tankless

£81.99
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18l instant gas hot - gas,

18l instant gas hot - gas,

£83.99
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350 camping shower - shower, portable

350 camping shower - shower, portable

£269.99
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20l lpg instant water heater - 20l,

20l lpg instant water heater - 20l,

£134.40
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20l portable camping - portable, water

20l portable camping - portable, water

£125.99
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Chaffoteaux britony gas - britony, 2

Chaffoteaux britony gas - britony, 2

£319.99
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18l propane gas tankless - gas,

18l propane gas tankless - gas,

£113.76
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Carver cascade mk2 - carver,

Carver cascade mk2 - carver,

£48.00
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Tankless hot water - 6l,

Tankless hot water - 6l,

£80.19
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Hot caravan water horse - caravan, 16l

Hot caravan water horse - caravan, 16l

£106.99
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Instant gas hot - gas, heater

Instant gas hot - gas, heater

£83.99
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New ariston next - x, ng

New ariston next - x, ng

£396.99
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Ltr gas electric truma - &,

Ltr gas electric truma - &,

£409.00
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18l lpg propane gas tankless - 18l,

18l lpg propane gas tankless - 18l,

£83.99
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Whale expanse water heater gas - water,

Whale expanse water heater gas - water,

£595.00
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Hot 18l gas heater - 8/16/18l,

Hot 18l gas heater - 8/16/18l,

£77.99
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Home gas water - home, heater

Home gas water - home, heater

£348.99
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Main multipoint water - main,

Main multipoint water - main,

£174.98
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Truma ultrastore gas - gas, &

Truma ultrastore gas - gas, &

£419.00
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Carver cascade mk2 - carver,

Carver cascade mk2 - carver,

£48.00
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20l portable camping water - 20l,

20l portable camping water - 20l,

£134.40
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Carver cascade mk2 water - carver,

Carver cascade mk2 water - carver,

£46.00
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Whale expanse water heater - heater, gas

Whale expanse water heater - heater, gas

£629.00
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Carver cascade water heater - carver,

Carver cascade water heater - carver,

£51.99
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16l gas hot water - water, heater

16l gas hot water - water, heater

£91.99
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Ferroli pegaso eco - ferroli, 11

Ferroli pegaso eco - ferroli, 11

£312.00
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Whale water heater drain - water,

Whale water heater drain - water,

£67.90
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12l lpg instant - instant, heater

12l lpg instant - instant, heater

£83.99
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18l lpg hot water heater - 18l,

18l lpg hot water heater - 18l,

£113.99
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Static caravan cointra cpa - caravan,

Static caravan cointra cpa - caravan,

£64.95
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Camplux instant gas hot - instant,

Camplux instant gas hot - instant,

£239.99
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Static caravan cointra cpa - static,

Static caravan cointra cpa - static,

£64.95
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12l lpg instant - lpg, water

12l lpg instant - lpg, water

£83.99
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Vaillant flue horizontal - vaillant,

Vaillant flue horizontal - vaillant,

£65.00
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Gas water heater - gas,

Gas water heater - gas,

£7.69
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Carver cascade gas electric - cascade,

Carver cascade gas electric - cascade,

£8.99
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Carver cascade water - carver, heater

Carver cascade water - carver, heater

£53.99
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Whale water heater gas - water,

Whale water heater gas - water,

£39.95
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Biasi riva plus m296 - biasi, he

Biasi riva plus m296 - biasi, he

£89.99
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12l portable water - portable, heater

12l portable water - portable, heater

£100.79
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Regin boiler heat - boiler, exchanger

Regin boiler heat - boiler, exchanger

£19.36
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Carver cascade gas electric - carver,

Carver cascade gas electric - carver,

£8.49
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Whale propex water heater - propex,

Whale propex water heater - propex,

£71.95
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Drayton ma1 mid position - drayton, head

Drayton ma1 mid position - drayton, head

£59.89
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Carver cascade water heater - 2,

Carver cascade water heater - 2,

£3.99
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Stable performance gas - performance,

Stable performance gas - performance,

£9.97
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Carver cascade mk2 - carver, water

Carver cascade mk2 - carver, water

£48.00
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Static caravan water heater - caravan,

Static caravan water heater - caravan,

£269.95
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Truma gas valve for - truma,

Truma gas valve for - truma,

£99.99
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Carver cascade caravan water - caravan,

Carver cascade caravan water - caravan,

£3.95
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Honeywell 240v grey push - 240v,

Honeywell 240v grey push - 240v,

£63.10
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Baxi system boiler 15kw - baxi,

Baxi system boiler 15kw - baxi,

£394.30
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Baxi 242459 239405 promax - 239405, promax/solo

Baxi 242459 239405 promax - 239405, promax/solo

£119.99
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📊96 listings · from £3.95 · avg £135.83
⚠️ These listings were last updated more than 12 days ago. Search for fresh listings

Browse 96 gas water heater listings currently in our index. Prices range from £3.95 to £629, with an average of £135.83. 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 | baxi boiler parts | worcester 24cdi | worcester combi | immersion heater timer | gas water boiler

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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 £629 — giving you a wide budget spread to work with. The average price of £135.83 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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