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Natural gas boiler

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Natural gas boiler for sale on largest auction and classifieds sites

Home / Water Heating & Filtration / Natural gas boiler refurbished & used for sale | For Sale USA
Rinnai ip060s series plus - rinnai,

Rinnai ip060s series plus - rinnai,

$1599.99
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Used boiler system webster - boiler,

Used boiler system webster - boiler,

$1000.00
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Vulcan 60gallon steam kettle - steam,

Vulcan 60gallon steam kettle - steam,

$10999.00
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Eco smart pool 240v - smart, 18

Eco smart pool 240v - smart, 18

$319.99
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Htp elud 285k - htp, gas

Htp elud 285k - htp, gas

$3500.00
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New htp 140k - btu, nat

New htp 140k - btu, nat

$999.00
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18l 5gpm tankless - 18l, gas

18l 5gpm tankless - 18l, gas

$117.09
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18l natural gas hot water - 18l,

18l natural gas hot water - 18l,

$119.90
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Honeywell v800a1088 24v - v800a1088,

Honeywell v800a1088 24v - v800a1088,

$150.00
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Rinnai 000 btu condensing - 90,000,

Rinnai 000 btu condensing - 90,000,

$2581.32
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New yorker boiler - yorker,

New yorker boiler - yorker,

$2500.00
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Rinnai 199 000 btu condensing - 199,000,

Rinnai 199 000 btu condensing - 199,000,

$2849.00
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Peerless gas burning boiler - burning,

Peerless gas burning boiler - burning,

$2425.00
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Velocity water boiler - water,

Velocity water boiler - water,

$2199.99
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2011 fulton natural gas - fulton, 20

2011 fulton natural gas - fulton, 20

$3900.00
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Rheem performance platinum 5 - rheem,

Rheem performance platinum 5 - rheem,

$899.00
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18l 5gpm tankless - tankless, natural

18l 5gpm tankless - tankless, natural

$119.90
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199 000 btu tankless natural - tankless,

199 000 btu tankless natural - tankless,

$679.99
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Weil mclain 119304330 packaged - weil-mclain,

Weil mclain 119304330 packaged - weil-mclain,

$4592.19
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Lochinvar khb199n knight fire - lochinvar,

Lochinvar khb199n knight fire - lochinvar,

$4619.99
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Takagi model 510u 1 - takagi,

Takagi model 510u 1 - takagi,

$565.99
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Force water boiler model - force,

Force water boiler model - force,

$1700.00
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Burnham rv3ni gas hw - rv3ni-l2,

Burnham rv3ni gas hw - rv3ni-l2,

$1500.00
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New williamson gwa 166 nat - williamson,

New williamson gwa 166 nat - williamson,

$2800.00
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Rinnai 120 000 btu - btu, condensing

Rinnai 120 000 btu - btu, condensing

$2271.50
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Rinnai ip090099c combination - rinnai,

Rinnai ip090099c combination - rinnai,

$2868.14
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Rinnai rxp199in tankless water - rxp199in,

Rinnai rxp199in tankless water - rxp199in,

$1209.79
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18l 5gpm natural propane - 18l, gas

18l 5gpm natural propane - 18l, gas

$119.90
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New rheem ecoh160dvln - new, ecoh160dvln-3

New rheem ecoh160dvln - new, ecoh160dvln-3

$425.00
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Pipe gas meter manage - gas,

Pipe gas meter manage - gas,

$205.00
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Cleveland kgl40 natural gas - cleveland,

Cleveland kgl40 natural gas - cleveland,

$3350.00
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Bosch zwb boiler natural - zwb,

Bosch zwb boiler natural - zwb,

$800.00
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Rinnai re199in indoor natural - re199in,

Rinnai re199in indoor natural - re199in,

$695.89
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Rite boiler natural gas - boiler,

Rite boiler natural gas - boiler,

$6000.00
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18l propane natural - propane/natural, gas

18l propane natural - propane/natural, gas

$119.90
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Htp elu 199wcn elite - elite, ultra

Htp elu 199wcn elite - elite, ultra

$2500.00
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18l 5gpm tankless natural - 18l,

18l 5gpm tankless natural - 18l,

$120.90
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Honeywell vr8450p 2111 gas - vr8450p,

Honeywell vr8450p 2111 gas - vr8450p,

$129.99
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Trinity 82658 premix burner - trinity,

Trinity 82658 premix burner - trinity,

$299.00
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Honeywell vr8440m 3048 furnace - vr8440m,

Honeywell vr8440m 3048 furnace - vr8440m,

$179.00
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Rheem tankless water heater - tankless,

Rheem tankless water heater - tankless,

$899.99
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Crown boiler awr070bnt3au1 - boiler, co

Crown boiler awr070bnt3au1 - boiler, co

$2839.99
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Crown boiler bsi series - bsi,

Crown boiler bsi series - bsi,

$2273.00
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Rheem rtg 74dvn - rtg-74dvn-1, gas

Rheem rtg 74dvn - rtg-74dvn-1, gas

$549.99
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Rinnai sensei super natural - super,

Rinnai sensei super natural - super,

$1304.99
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10l 12l 18l tankless - 10l,

10l 12l 18l tankless - 10l,

$93.99
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Takagi tankless gas water - tankless,

Takagi tankless gas water - tankless,

$539.99
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Rinnai sensei rx199in - rinnai,

Rinnai sensei rx199in - rinnai,

$1285.00
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Rinnai m090cn residential - rinnai,

Rinnai m090cn residential - rinnai,

$2595.00
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Bosch greentherm 950 ng - bosch, es

Bosch greentherm 950 ng - bosch, es

$749.99
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Lochinvar knight natural - knight, xl

Lochinvar knight natural - knight, xl

$7150.00
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Honeywell v800a1484 24v - honeywell,

Honeywell v800a1484 24v - honeywell,

$195.00
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Rheem tankless water heater - tankless,

Rheem tankless water heater - tankless,

$749.99
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Rinnai rcb301an commercial - rinnai,

Rinnai rcb301an commercial - rinnai,

$5900.00
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Rheem gpm 200k - 200k, smart

Rheem gpm 200k - 200k, smart

$824.99
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Nice groen intek - nice,

Nice groen intek - nice,

$1200.00
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Propane natural gas - gas, tankless

Propane natural gas - gas, tankless

$299.99
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18l 5gpm natural gas hot - hot, water

18l 5gpm natural gas hot - hot, water

$118.90
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Triangle tube ins199s - ins199s, 199,000

Triangle tube ins199s - ins199s, 199,000

$2813.00
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Rheem indoor natural - rheem,

Rheem indoor natural - rheem,

$749.99
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Weil mclain evergreen - weil-mclain,

Weil mclain evergreen - weil-mclain,

$5000.00
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Rheem indoor natural gas - rheem,

Rheem indoor natural gas - rheem,

$599.99
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Rinnai e75crn residential - e75crn,

Rinnai e75crn residential - e75crn,

$2295.00
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M120sn solo 120 000 - m120sn, 120,000

M120sn solo 120 000 - m120sn, 120,000

$2595.00
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Lpg gas tankless water - lpg,

Lpg gas tankless water - lpg,

$92.99
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Weil mclain natural gas boiler - weil,

Weil mclain natural gas boiler - weil,

$69.00
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18l 5gpm natural - natural, /propane

18l 5gpm natural - natural, /propane

$131.90
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16l natural gas tankless - tankless, hot

16l natural gas tankless - tankless, hot

$151.79
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20l propane gas tankless - 20l,

20l propane gas tankless - 20l,

$131.90
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Lochinvar copper fin - lochinvar, copper-fin

Lochinvar copper fin - lochinvar, copper-fin

$10237.39
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16l 2gpm natural - 4.2gpm, gas

16l 2gpm natural - 4.2gpm, gas

$151.79
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Smith series 6gpm - 6.6gpm, 16kbtu

Smith series 6gpm - 6.6gpm, 16kbtu

$699.00
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Triangle tube instinct - triangle,

Triangle tube instinct - triangle,

$2849.95
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Rinnai sensei super high - sensei,

Rinnai sensei super high - sensei,

$863.00
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Tankless water heater whole - tankless,

Tankless water heater whole - tankless,

$503.99
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Rinnai tankless water heater - rinnai,

Rinnai tankless water heater - rinnai,

$999.99
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16l 5gpm tankless natural - tankless,

16l 5gpm tankless natural - tankless,

$874.99
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18l lng natural - 18l, water

18l lng natural - 18l, water

$119.09
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120 000 btu tankless water - tankless,

120 000 btu tankless water - tankless,

$449.99
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Rinnai re199en outdoor - rinnai,

Rinnai re199en outdoor - rinnai,

$799.99
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Navien nhw700 160su - navien, nhw700-160su(ng)

Navien nhw700 160su - navien, nhw700-160su(ng)

$550.00
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Rheem performance plus - rheem, gpm

Rheem performance plus - rheem, gpm

$489.99
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Weil mclain natural gas - natural,

Weil mclain natural gas - natural,

$119.99
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36h32 423 white rodgers - 36h32-423, white-rodgers

36h32 423 white rodgers - 36h32-423, white-rodgers

$109.95
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Dunkirk dkvlt 150k btu helix - dunkirk,

Dunkirk dkvlt 150k btu helix - dunkirk,

$3044.00
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Rinnai rcb399an commercial - rinnai,

Rinnai rcb399an commercial - rinnai,

$7500.00
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18l 5gpm tankless natural - 5gpm, gas

18l 5gpm tankless natural - 5gpm, gas

$119.90
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Nti gas valve cvi kit - gas,

Nti gas valve cvi kit - gas,

$115.00
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18l 36kw lng natural - 36kw,

18l 36kw lng natural - 36kw,

$119.90
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Lochinvar knight natural - knight,

Lochinvar knight natural - knight,

$8800.00
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Triangle tube ins199s instinct - tube,

Triangle tube ins199s instinct - tube,

$2300.00
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18l 5gpm tankless natural - 18l,

18l 5gpm tankless natural - 18l,

$119.90
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Rheem rtg20316l combustion fan - rheem,

Rheem rtg20316l combustion fan - rheem,

$125.00
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Rinnai rxp199in efficient - rinnai,

Rinnai rxp199in efficient - rinnai,

$1584.38
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Rinnai rx199in indoor outdoor - rx199in, indoor/outdoor

Rinnai rx199in indoor outdoor - rx199in, indoor/outdoor

$949.99
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1135 601 natural - natural, gas

1135 601 natural - natural, gas

$299.99
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📊96 listings · from $69 · avg $1699.27
⚠️ These listings were last updated more than 8 days ago. Search for fresh listings

Browse 96 natural gas boiler listings currently in our index. Prices range from $69 to $10999, with an average of $1699.27. 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 natural gas boiler →

Try this: power vent water heater | rainsoft | rheem tankless water heater | steam generator | tankless water heater | water heater tank | water softener | water cooler dispenser | wine dispenser | culligan

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Everything you need to know about natural gas boiler

Whether you are looking for a brand-new or second-hand natural 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 $69, while premium listings can reach $10999 — giving you a wide budget spread to work with. The average price of $1699.27 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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