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Gas water boiler for sale on largest auction and classifieds sites

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

18l lpg propane gas hot - hot, water

£120.90
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10l 12l 18l - 8l,

10l 12l 18l - 8l,

£90.99
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10l 12l 18l tankless - 6l,

10l 12l 18l tankless - 6l,

£103.98
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18l propane natural gas - 18l,

18l propane natural gas - 18l,

£119.90
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18l 5gpm tankless lpg - 18l,

18l 5gpm tankless lpg - 18l,

£119.89
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18l 5gpm tankless natural gas - 18l,

18l 5gpm tankless natural gas - 18l,

£120.90
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18l 5gpm tankless natural - tankless, gas

18l 5gpm tankless natural - tankless, gas

£117.90
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18l 5gpm tankless lpg - tankless,

18l 5gpm tankless lpg - tankless,

£120.90
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20l 26gpm lpg propane gas - 20l, 5.26gpm

20l 26gpm lpg propane gas - 20l, 5.26gpm

£130.90
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18l 36kw lpg propane gas - propane,

18l 36kw lpg propane gas - propane,

£120.90
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18l 36kw lng - 18l, natural

18l 36kw lng - 18l, natural

£120.90
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20l 26gpm tankless propane - 20l,

20l 26gpm tankless propane - 20l,

£132.90
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Propane tankless water - 8l,

Propane tankless water - 8l,

£91.99
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10l 64gpm hot water - 2.64gpm,

10l 64gpm hot water - 2.64gpm,

£219.95
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18l 5gpm tankless - 18l, natural

18l 5gpm tankless - 18l, natural

£120.90
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18l propane gas - 18l, hot

18l propane gas - 18l, hot

£119.90
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Gpm 170 000 - gpm, tankless

Gpm 170 000 - gpm, tankless

£709.00
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2gpm tankless lpg - 8l,

2gpm tankless lpg - 8l,

£90.99
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Portable lpg propane gas - portable,

Portable lpg propane gas - portable,

£103.09
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18l 5gpm natural propane gas - 5gpm, /propane

18l 5gpm natural propane gas - 5gpm, /propane

£120.90
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20l propane gas tankless - tankless, hot

20l propane gas tankless - tankless, hot

£131.80
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18l 5gpm tankless - natural, gas

18l 5gpm tankless - natural, gas

£120.90
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18l lng natural gas - gas, hot

18l lng natural gas - gas, hot

£119.09
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18l 5gpm tankless natural - 18l,

18l 5gpm tankless natural - 18l,

£120.90
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Portable lpg propane gas hot - propane,

Portable lpg propane gas hot - propane,

£93.96
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18l 5gpm natural propane - /propane, gas

18l 5gpm natural propane - /propane, gas

£120.90
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18l 5gpm lpg - 5gpm, gas

18l 5gpm lpg - 5gpm, gas

£120.90
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18l 5gpm tankless - 5gpm, gas

18l 5gpm tankless - 5gpm, gas

£120.90
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Corro protec powered - corro-protec,

Corro protec powered - corro-protec,

£189.95
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Hike crew portable propane - crew,

Hike crew portable propane - crew,

£136.49
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Mizudo tankless water heater - water,

Mizudo tankless water heater - water,

£234.99
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Rinnai rxp199in 199000 btu - rxp199in,

Rinnai rxp199in 199000 btu - rxp199in,

£1399.99
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16l hot water heater lpg - 12/14/16l,

16l hot water heater lpg - 12/14/16l,

£149.99
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10l 12l 18l propane - 10l,

10l 12l 18l propane - 10l,

£125.99
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18l 5gpm tankless - 18l,

18l 5gpm tankless - 18l,

£120.90
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10l propane gas tankless - propane,

10l propane gas tankless - propane,

£107.99
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199 000 btu - btu, tankless

199 000 btu - btu, tankless

£679.99
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Universal pilot assembly - universal,

Universal pilot assembly - universal,

£18.99
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Rheem tankless water heater - rheem,

Rheem tankless water heater - rheem,

£699.99
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100 000 btu - tankless, water

100 000 btu - tankless, water

£189.99
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Natural gas water boiler - water,

Natural gas water boiler - water,

£7500.00
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Rinnai ip199s tankless - rinnai,

Rinnai ip199s tankless - rinnai,

£1500.00
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20l lpg propane gas hot - propane,

20l lpg propane gas hot - propane,

£120.90
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16l 2gpm tankless lpg liquid - 4.2gpm,

16l 2gpm tankless lpg liquid - 4.2gpm,

£151.79
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12l 2gpm tankless - lpg, liquid

12l 2gpm tankless - lpg, liquid

£120.59
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Gpm condensing tankless - 5.28,

Gpm condensing tankless - 5.28,

£503.99
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Propane natural gas tankless - propane/natural,

Propane natural gas tankless - propane/natural,

£359.99
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Propane gas water heater - water,

Propane gas water heater - water,

£103.09
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Portable lpg propane gas - portable,

Portable lpg propane gas - portable,

£103.04
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Universal pilot assembly - universal,

Universal pilot assembly - universal,

£19.03
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16l 2gpm natural gas - 16l,

16l 2gpm natural gas - 16l,

£148.49
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Rite boiler natural gas - boiler,

Rite boiler natural gas - boiler,

£6000.00
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Amzgachfktch propane gas - propane, 6l

Amzgachfktch propane gas - propane, 6l

£119.99
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Water worker steel - steel, gas

Water worker steel - steel, gas

£94.99
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Tankless lpg liquid propane - tankless,

Tankless lpg liquid propane - tankless,

£103.09
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18l 5gpm lpg - propane, gas

18l 5gpm lpg - propane, gas

£124.99
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Takagi tankless gas water - takagi,

Takagi tankless gas water - takagi,

£539.99
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Lpg gas tankless water - lpg,

Lpg gas tankless water - lpg,

£92.99
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Portable propane tankless hot - tankless,

Portable propane tankless hot - tankless,

£93.94
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12l tankless water - tankless, heater

12l tankless water - tankless, heater

£269.99
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18l 5gpm natural gas hot - 18l,

18l 5gpm natural gas hot - 18l,

£119.90
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Propane gas tankless water - gas,

Propane gas tankless water - gas,

£185.99
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Force water boiler model - water,

Force water boiler model - water,

£1700.00
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Portable lpg propane - portable, gas

Portable lpg propane - portable, gas

£102.83
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Horizontal steam boiler - steam,

Horizontal steam boiler - steam,

£249.20
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16l lpg propane gas hot - 12/14/16l,

16l lpg propane gas hot - 12/14/16l,

£169.99
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2pcs universal gas - universal, water

2pcs universal gas - universal, water

£8.99
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120k btu natural gas - 120k,

120k btu natural gas - 120k,

£357.19
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Rheem rcbh l199i thermaforce - rcbh-l199i,

Rheem rcbh l199i thermaforce - rcbh-l199i,

£2000.00
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Union water tube boiler - water,

Union water tube boiler - water,

£200.00
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Propane gas water heater - water,

Propane gas water heater - water,

£103.09
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Camplux tankless gas water - tankless,

Camplux tankless gas water - tankless,

£159.99
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New williamson gwa 166 nat - williamson, gwa-166-n-t

New williamson gwa 166 nat - williamson, gwa-166-n-t

£2800.00
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Propane gas water - propane,

Propane gas water - propane,

£103.09
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Eemax sp100 electric - eemax,

Eemax sp100 electric - eemax,

£139.23
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16l 2gpm lpg propane gas - propane,

16l 2gpm lpg propane gas - propane,

£148.49
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Rinnai rwm200 wireless - rinnai,

Rinnai rwm200 wireless - rinnai,

£85.00
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Portable lpg propane gas - gas, hot

Portable lpg propane gas - gas, hot

£103.09
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12l 14l 16l tankless propane - 14l,

12l 14l 16l tankless propane - 14l,

£169.99
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10l propane gas tankless water - 10l,

10l propane gas tankless water - 10l,

£129.99
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Portable lpg propane gas - lpg,

Portable lpg propane gas - lpg,

£103.30
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170k btu indoor tankless - 170k,

170k btu indoor tankless - 170k,

£379.99
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14l 7gpm lpg propane - gas, hot

14l 7gpm lpg propane - gas, hot

£139.49
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Rheem ecoh160dvln tankless - rheem,

Rheem ecoh160dvln tankless - rheem,

£749.95
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Hot water heater lpg - water, propane

Hot water heater lpg - water, propane

£131.24
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Propane gas water heater - propane,

Propane gas water heater - propane,

£103.09
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14l lpg propane gas tankless - 14l,

14l lpg propane gas tankless - 14l,

£154.99
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Universal pilot assembly - universal,

Universal pilot assembly - universal,

£19.50
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Portable lpg propane - lpg, gas

Portable lpg propane - lpg, gas

£103.20
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16l 2gpm tankless natural - tankless,

16l 2gpm tankless natural - tankless,

£148.49
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16l natural gas tankless - natural, hot

16l natural gas tankless - natural, hot

£148.49
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Noritz tankless water - water, heater

Noritz tankless water - water, heater

£849.99
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Portable lpg propane gas - portable,

Portable lpg propane gas - portable,

£139.99
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12l lpg propane gas - 12l,

12l lpg propane gas - 12l,

£120.59
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Portable tankless water heater - tankless,

Portable tankless water heater - tankless,

£169.95
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Rheem rtg gpm - 7,

Rheem rtg gpm - 7,

£798.00
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📊96 listings · from £8.99 · avg £410.1

Browse 96 gas water boiler listings currently in our index. Prices range from £8.99 to £7500, with an average of £410.1. 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 boiler →

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Everything you need to know about gas water boiler

Whether you are looking for a brand-new or second-hand gas water boiler, 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 £8.99, while premium listings can reach £7500 — giving you a wide budget spread to work with. The average price of £410.1 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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