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Home / Heating Appliances / Water furnace refurbished & used for sale | For Sale USA
12x12 water air heat - 12x12,

12x12 water air heat - 12x12,

$110.53
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Fasco aquavent water heater - fasco,

Fasco aquavent water heater - fasco,

$159.50
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Alorair 100 000 - 100,000, btu

Alorair 100 000 - 100,000, btu

$499.99
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Velocity water boiler - velocity,

Velocity water boiler - velocity,

$2199.99
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Water furnace color - furnace,

Water furnace color - furnace,

$389.99
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22x22 water air heat - water, to

22x22 water air heat - water, to

$271.95
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20x20 water air heat - air,

20x20 water air heat - air,

$261.95
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Outdoor wood furnace - outdoor,

Outdoor wood furnace - outdoor,

$75.00
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Outdoor wood furnace - wood, boiler

Outdoor wood furnace - wood, boiler

$190.00
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Furnace vent screen - vent, and

Furnace vent screen - vent, and

$22.95
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Geolink grundfos circulator - grundfos,

Geolink grundfos circulator - grundfos,

$950.00
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Water furnace premier series - water,

Water furnace premier series - water,

$125.00
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Protech300 outdoor wood boiler - protech300,

Protech300 outdoor wood boiler - protech300,

$59.99
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Water furnace premier series - furnace,

Water furnace premier series - furnace,

$120.00
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220v melting furnace 100 - melting,

220v melting furnace 100 - melting,

$635.00
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Tested waterfurnace - tested🔥,

Tested waterfurnace - tested🔥,

$220.00
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14x14 water air heat - to,

14x14 water air heat - to,

$136.95
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Waterfurnace geothermal - waterfurnace,

Waterfurnace geothermal - waterfurnace,

$899.00
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36x36 water air - 36x36,

36x36 water air - 36x36,

$682.00
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8x8 water air - air, heat

8x8 water air - air, heat

$60.00
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Beckett oil burner afg - burner,

Beckett oil burner afg - burner,

$280.00
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Furnace nozzles delavan oil - delavan,

Furnace nozzles delavan oil - delavan,

$13.99
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15x15 water air heat - 15x15,

15x15 water air heat - 15x15,

$153.00
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12x24 water air heat - water, to

12x24 water air heat - water, to

$187.16
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Delavan oil burner nozzle - delavan,

Delavan oil burner nozzle - delavan,

$14.69
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14x16 water air heat - to,

14x16 water air heat - to,

$130.46
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Outdoor wood furnace - outdoor,

Outdoor wood furnace - outdoor,

$108.00
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18x20 water air - 18x20,

18x20 water air - 18x20,

$222.00
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Rinnai ex11dtp direct vent - ex11dtp,

Rinnai ex11dtp direct vent - ex11dtp,

$1299.99
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Fasco a136 rheem rudd - fasco,

Fasco a136 rheem rudd - fasco,

$263.88
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Beckett oil burner afg - oil,

Beckett oil burner afg - oil,

$200.00
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Fasco 702112186 hot water - hot,

Fasco 702112186 hot water - hot,

$150.00
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Fasco jf1d020n water heater - fasco,

Fasco jf1d020n water heater - fasco,

$117.00
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Water to air - 20”,

Water to air - 20”,

$349.99
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18x18 water air heat - water,

18x18 water air heat - water,

$210.00
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Outdoor wood furnace boiler - outdoor,

Outdoor wood furnace boiler - outdoor,

$170.00
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12x18 water air heat - 12x18,

12x18 water air heat - 12x18,

$143.00
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Water furnace control board - water,

Water furnace control board - water,

$120.00
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Waterfurnace intellizone2 zone - intellizone2,

Waterfurnace intellizone2 zone - intellizone2,

$655.00
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Waterfurnace 17x578 aurora - waterfurnace, 17x578-05

Waterfurnace 17x578 aurora - waterfurnace, 17x578-05

$1825.00
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Universal pilot assembly - universal,

Universal pilot assembly - universal,

$18.99
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Water air heat exchanger - to,

Water air heat exchanger - to,

$485.99
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Water heater ignitor - heater,

Water heater ignitor - heater,

$19.58
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Outdoor wood furnace - outdoor, boiler

Outdoor wood furnace - outdoor, boiler

$757.00
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16x20 water air heat - air,

16x20 water air heat - air,

$187.95
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15x24 water air heat - 15x24,

15x24 water air heat - 15x24,

$185.88
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Waste oil heater furnace - waste,

Waste oil heater furnace - waste,

$1497.76
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15kw high frequency - high,

15kw high frequency - high,

$630.00
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Nos universal gas - universal,

Nos universal gas - universal,

$7.99
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Gas furnace water - gas, heater

Gas furnace water - gas, heater

$10.90
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Water furnace geothermal - water,

Water furnace geothermal - water,

$39.99
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18x18 water air heat - 18x18,

18x18 water air heat - 18x18,

$207.95
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Crown boiler awr070bnt3au1 - crown, co

Crown boiler awr070bnt3au1 - crown, co

$2839.99
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Universal furnace water heater - universal,

Universal furnace water heater - universal,

$19.24
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20x25 water air heat - 20x25,

20x25 water air heat - 20x25,

$287.27
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18x17 water air heat - to,

18x17 water air heat - to,

$212.95
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Universal pilot assembly - universal,

Universal pilot assembly - universal,

$19.03
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240 000 btu titanium salt - btu,

240 000 btu titanium salt - btu,

$880.00
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Water furnace geothermal - water,

Water furnace geothermal - water,

$54.99
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Beckett oil burner - beckett, af

Beckett oil burner - beckett, af

$300.00
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Outdoor boiler liquid armor - outdoor,

Outdoor boiler liquid armor - outdoor,

$64.99
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20x19 water air - air, heat

20x19 water air - air, heat

$235.00
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Delavan oil burner nozzle - burner,

Delavan oil burner nozzle - burner,

$14.69
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Water furnace premier - water, series

Water furnace premier - water, series

$139.99
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30x30 water air heat - to,

30x30 water air heat - to,

$486.00
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Outdoor wood furnace - outdoor,

Outdoor wood furnace - outdoor,

$275.00
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Genteq emc2 5sme39sl0253 - genteq, emc2.3

Genteq emc2 5sme39sl0253 - genteq, emc2.3

$224.99
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24x24 water air heat - 24x24, to

24x24 water air heat - 24x24, to

$339.00
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Liquidus wood furnace - 3, speed

Liquidus wood furnace - 3, speed

$150.00
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S8600m missing mounting - s8600m, tabs

S8600m missing mounting - s8600m, tabs

$38.99
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Apcom 71626648 water heater - water,

Apcom 71626648 water heater - water,

$164.00
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304 tube furnace flange water - 304,

304 tube furnace flange water - 304,

$282.09
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Beckett oil burner - burner,

Beckett oil burner - burner,

$300.00
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14x14 water air heat - water, to

14x14 water air heat - water, to

$138.00
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501 hardy furnace - 501.00,

501 hardy furnace - 501.00,

$319.95
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Gas furnace water heater - furnace,

Gas furnace water heater - furnace,

$9.99
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Outdoor wood furnace boiler - outdoor,

Outdoor wood furnace boiler - outdoor,

$143.00
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Low water level indicator - low,

Low water level indicator - low,

$17.95
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1100 water inlet - inlet, valve/with

1100 water inlet - inlet, valve/with

$102.95
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Outdoor wood boiler treatment - boiler,

Outdoor wood boiler treatment - boiler,

$119.99
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Water furnace ta32h02 - furnace,

Water furnace ta32h02 - furnace,

$136.96
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Fit for suburban furnace - suburban, rv

Fit for suburban furnace - suburban, rv

$15.92
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14x18 water air heat - to,

14x18 water air heat - to,

$168.03
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18x24 water air heat - to,

18x24 water air heat - to,

$271.23
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Delavan oil burner nozzle - oil,

Delavan oil burner nozzle - oil,

$14.69
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Delavan oil burner - oil, nozzle

Delavan oil burner - oil, nozzle

$14.69
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Side arm heat exchanger - side,

Side arm heat exchanger - side,

$142.00
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S8600h continuous try - continuous, re-try

S8600h continuous try - continuous, re-try

$48.00
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Oem sapco water heater direct - water,

Oem sapco water heater direct - water,

$29.99
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45gpm speed cast iron - speed,

45gpm speed cast iron - speed,

$104.30
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Aciq 000 btu - btu, 96%

Aciq 000 btu - btu, 96%

$1512.00
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Riello tune kit - riello,

Riello tune kit - riello,

$25.00
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Supco ecap321 pvc flue - pvc,

Supco ecap321 pvc flue - pvc,

$16.99
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Beckett oil burner unit - unit, model

Beckett oil burner unit - unit, model

$300.00
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Tested waterfurnace - tested🔥🔥,

Tested waterfurnace - tested🔥🔥,

$700.00
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Tested water furnace - tested🔥, zone

Tested water furnace - tested🔥, zone

$280.00
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📊96 listings · from $7.99 · avg $319.72
⚠️ These listings were last updated more than 11 days ago. Search for fresh listings

Browse 96 water furnace listings currently in our index. Prices range from $7.99 to $2839.99, with an average of $319.72. 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 water furnace →

Try this: wood burning furnace | york furnace | 55 gallon metal drum | chimney liner | dimplex heater | electric garage heater | floor furnace | furnace | furnace heater | master heater

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Everything you need to know about water furnace

Whether you are looking for a brand-new or second-hand water furnace, 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 $7.99, while premium listings can reach $2839.99 — giving you a wide budget spread to work with. The average price of $319.72 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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