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New htp 140k btu nat - htp,

New htp 140k btu nat - htp,

$999.00
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2011 fulton natural gas - hp,

2011 fulton natural gas - hp,

$3900.00
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Rinnai ip060s series - rinnai,

Rinnai ip060s series - rinnai,

$1599.99
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Utica gas water - utica, boiler

Utica gas water - utica, boiler

$445.00
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18l lpg propane - 18l,

18l lpg propane - 18l,

$120.90
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18l 5gpm tankless - 18l,

18l 5gpm tankless - 18l,

$120.90
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18l 5gpm tankless lpg - 18l,

18l 5gpm tankless lpg - 18l,

$119.89
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10l 12l 18l - 18l, tankless

10l 12l 18l - 18l, tankless

$122.99
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18l 36kw lpg - 18l, gas

18l 36kw lpg - 18l, gas

$120.90
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20l lpg propane gas hot - lpg,

20l lpg propane gas hot - lpg,

$120.90
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Portable lpg propane - portable, gas

Portable lpg propane - portable, gas

$102.06
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Rinnai 199 000 - rinnai, condensing

Rinnai 199 000 - rinnai, condensing

$2849.00
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Ebmpapst g3g200 gn26 - ebmpapst, g3g200-gn26-01

Ebmpapst g3g200 gn26 - ebmpapst, g3g200-gn26-01

$1700.00
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Eco smart - eco-smart, 18

Eco smart - eco-smart, 18

$319.99
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Velocity water boiler - water,

Velocity water boiler - water,

$2199.99
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Corro protec powered - powered, for

Corro protec powered - powered, for

$199.95
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Lpg gas tankless water - 8l,

Lpg gas tankless water - 8l,

$92.99
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18l 5gpm tankless - tankless, natural

18l 5gpm tankless - tankless, natural

$116.90
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18l 5gpm tankless natural - tankless,

18l 5gpm tankless natural - tankless,

$119.90
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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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Htp elud 285k btu - natural, gas

Htp elud 285k btu - natural, gas

$3500.00
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20l 26gpm tankless propane - 5.26gpm,

20l 26gpm tankless propane - 5.26gpm,

$131.50
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Condensate neutralizer kit - condensate,

Condensate neutralizer kit - condensate,

$43.99
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20l 26gpm tankless - 20l,

20l 26gpm tankless - 20l,

$131.90
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Takagi tankless gas - takagi,

Takagi tankless gas - takagi,

$539.99
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18l 5gpm tankless lpg - lpg, liquid

18l 5gpm tankless lpg - lpg, liquid

$116.00
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Lpg propane gas - gas, water

Lpg propane gas - gas, water

$79.99
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Peerless gas burning - gas,

Peerless gas burning - gas,

$2425.00
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Honeywell v4055d 1043 - honeywell, v4055d-1043

Honeywell v4055d 1043 - honeywell, v4055d-1043

$299.00
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Used boiler system webster - used,

Used boiler system webster - used,

$1000.00
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Viessman cm2 246 vitocrossal - viessman,

Viessman cm2 246 vitocrossal - viessman,

$3499.00
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Lochinvar kbn boiler control - lochinvar,

Lochinvar kbn boiler control - lochinvar,

$450.00
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Rinnai 000 btu - rinnai, condensing

Rinnai 000 btu - rinnai, condensing

$2581.32
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199 000 btu - 199,000,

199 000 btu - 199,000,

$679.99
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Triangle tube ins199s 199 - triangle,

Triangle tube ins199s 199 - triangle,

$2813.00
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Rinnai ip175s solo boiler - solo, ch

Rinnai ip175s solo boiler - solo, ch

$2686.60
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Navien nfb 200h condensing - nfb-200h, gas

Navien nfb 200h condensing - nfb-200h, gas

$3400.00
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Honeywell v800a1088 24v - v800a1088,

Honeywell v800a1088 24v - v800a1088,

$150.00
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Bosch zwb boiler natural - bosch,

Bosch zwb boiler natural - bosch,

$800.00
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Rinnai re160in indoor tankless - rinnai,

Rinnai re160in indoor tankless - rinnai,

$500.00
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Crown boiler awr070bnt3au1 - boiler,

Crown boiler awr070bnt3au1 - boiler,

$2839.99
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Kewanee l3w 460v - l3w-60-kg,

Kewanee l3w 460v - l3w-60-kg,

$4754.94
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Takagi model 510u 1 - model, tk-510u-1

Takagi model 510u 1 - model, tk-510u-1

$548.99
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Chambers stove large - chambers,

Chambers stove large - chambers,

$1200.00
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18l 5gpm tankless - 5gpm, natural

18l 5gpm tankless - 5gpm, natural

$119.90
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Smith series 6gpm 16kbtu - smith,

Smith series 6gpm 16kbtu - smith,

$699.00
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Buderus gb142 igniter

Buderus gb142 igniter

$156.00
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18l natural gas - natural,

18l natural gas - natural,

$119.90
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Force water boiler model - water,

Force water boiler model - water,

$1700.00
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18l 5gpm lpg - 5gpm, gas

18l 5gpm lpg - 5gpm, gas

$120.90
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Gpm condensing tankless - 5.28,

Gpm condensing tankless - 5.28,

$503.99
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10l 12l 18l tankless - 8l,

10l 12l 18l tankless - 8l,

$123.99
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Triangle tube pgrkit01 gas - tube,

Triangle tube pgrkit01 gas - tube,

$349.99
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Portable lpg propane gas hot - portable,

Portable lpg propane gas hot - portable,

$79.55
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20l propane gas tankless - gas, hot

20l propane gas tankless - gas, hot

$131.90
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Rheem tankless water heater - rheem,

Rheem tankless water heater - rheem,

$899.99
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Gas boiler room heating - boiler,

Gas boiler room heating - boiler,

$39.00
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Buderus gb142 78184 blower fan - gb142,

Buderus gb142 78184 blower fan - gb142,

$325.00
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18l 5gpm tankless - tankless, natural

18l 5gpm tankless - tankless, natural

$120.90
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Portable lpg propane - lpg,

Portable lpg propane - lpg,

$102.06
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Chambers stove wearever - ,

Chambers stove wearever - ,

$549.00
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Rinnai rxp199in tankless water - rinnai,

Rinnai rxp199in tankless water - rinnai,

$1209.79
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Smith gt15 240 ni - a., gt15-240-ni

Smith gt15 240 ni - a., gt15-240-ni

$899.00
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18l 5gpm natural propane - 5gpm, gas

18l 5gpm natural propane - 5gpm, gas

$119.90
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Lochinvar khb199n knight - lochinvar,

Lochinvar khb199n knight - lochinvar,

$4619.99
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Corro protec powered - anode, rod

Corro protec powered - anode, rod

$149.95
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2gpm tankless lpg - lpg, liquid

2gpm tankless lpg - lpg, liquid

$93.99
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Rinnai sensei super - sensei, high

Rinnai sensei super - sensei, high

$863.00
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Burnham new yorker - burnham,

Burnham new yorker - burnham,

$40.00
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Bradford white water heater - bradford,

Bradford white water heater - bradford,

$550.00
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Portable lpg propane gas hot - lpg,

Portable lpg propane gas hot - lpg,

$75.99
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18l 36kw lng natural - 36kw,

18l 36kw lng natural - 36kw,

$119.90
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Rinnai ip199s tankless water - rinnai,

Rinnai ip199s tankless water - rinnai,

$1500.00
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Propane tankless water - 8l,

Propane tankless water - 8l,

$94.99
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Rheem rtg 74dvn - rheem, gas

Rheem rtg 74dvn - rheem, gas

$549.99
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Weil mclain 119304330 - 119304330, packaged

Weil mclain 119304330 - 119304330, packaged

$4592.19
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Burnham rv3ni gas - burnham, hw

Burnham rv3ni gas - burnham, hw

$1500.00
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Vevor gas tankless water - vevor,

Vevor gas tankless water - vevor,

$152.91
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Htp elu 199wcn elite - elite, ultra

Htp elu 199wcn elite - elite, ultra

$2500.00
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18l propane natural gas - propane/natural,

18l propane natural gas - propane/natural,

$119.90
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Universal pilot assembly - pilot,

Universal pilot assembly - pilot,

$18.99
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Rinnai rx199in tankless water - rx199in,

Rinnai rx199in tankless water - rx199in,

$924.99
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Brand weil mclain gas boiler - brand,

Brand weil mclain gas boiler - brand,

$739.80
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Rheem indoor natural gas - indoor,

Rheem indoor natural gas - indoor,

$749.99
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16l 2gpm tankless lpg - 4.2gpm,

16l 2gpm tankless lpg - 4.2gpm,

$151.79
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Noritz tankless water heater - noritz,

Noritz tankless water heater - noritz,

$849.99
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Universal pilot assembly - universal,

Universal pilot assembly - universal,

$19.03
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Creole feast outdoor stove - feast,

Creole feast outdoor stove - feast,

$462.99
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Rinnai tankless water heater - tankless,

Rinnai tankless water heater - tankless,

$999.99
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Suburban 60 tankless - rv, st-60

Suburban 60 tankless - rv, st-60

$399.00
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Burnham gas boiler burner - gas,

Burnham gas boiler burner - gas,

$29.99
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Truma combi boiler lpg gas - truma,

Truma combi boiler lpg gas - truma,

$135.24
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Weil mclain ultra boiler - weil-mclain,

Weil mclain ultra boiler - weil-mclain,

$290.00
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Condensing gas fired boiler - condensing, gas-fired

Condensing gas fired boiler - condensing, gas-fired

$94.63
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Fogatti tankless water heater - tankless,

Fogatti tankless water heater - tankless,

$440.00
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Burnham 205 tray assembly - assembly, &

Burnham 205 tray assembly - assembly, &

$500.00
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📊96 listings · from $18.99 · avg $896.26
⚠️ These listings were last updated more than 8 days ago. Search for fresh listings

Browse 96 gas boiler listings currently in our index. Prices range from $18.99 to $4754.94, with an average of $896.26. 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 boiler →

Try this: natural gas tankless water heater | natural gas boiler | power vent water heater | rainsoft | rheem tankless water heater | steam generator | tankless water heater | water heater tank | water softener | water cooler dispenser

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Everything you need to know about gas boiler

Whether you are looking for a brand-new or second-hand gas 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 $18.99, while premium listings can reach $4754.94 — giving you a wide budget spread to work with. The average price of $896.26 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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