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Combi boilers

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Home / Water Heating & Filtration / Combi boilers refurbished & used for sale | For Sale UK
Htp elu 199wcn - elu-199wcn, ultra

Htp elu 199wcn - elu-199wcn, ultra

£2500.00
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Corro protec powered - anode, for

Corro protec powered - anode, for

£199.95
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Navien ncb - navien,

Navien ncb - navien,

£1048.11
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Rinnai ip150199c combi - rinnai,

Rinnai ip150199c combi - rinnai,

£2299.99
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Triangle tube insrkit12 - triangle,

Triangle tube insrkit12 - triangle,

£174.00
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Triangle tube insrkit58 - tube, flow

Triangle tube insrkit58 - tube, flow

£158.00
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Bosch 733 600 083 - bosch,

Bosch 733 600 083 - bosch,

£2899.00
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Triangle tube instinct - tube, combi

Triangle tube instinct - tube, combi

£3074.95
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Rinnai ip150199c combi - rinnai, boiler

Rinnai ip150199c combi - rinnai, boiler

£2046.89
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Triangle tube instinct combi - instinct,

Triangle tube instinct combi - instinct,

£2849.95
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Navien 30017402a dual venturi - navien,

Navien 30017402a dual venturi - navien,

£92.09
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New navien 30012241a - navien, auto

New navien 30012241a - navien, auto

£44.99
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Watts manifold kit for use - watts,

Watts manifold kit for use - watts,

£105.89
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Rinnai ip150199c combi - ip150199c, boiler

Rinnai ip150199c combi - ip150199c, boiler

£2299.99
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Noritz nrcb180dv nrcb180 - nrcb180dv-ng,

Noritz nrcb180dv nrcb180 - nrcb180dv-ng,

£2800.00
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1inch 54444wpr3 webstone - 1inch,

1inch 54444wpr3 webstone - 1inch,

£125.00
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Triangle tube instinct combi - triangle, tube,

Triangle tube instinct combi - triangle, tube,

£2700.00
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Triangle tube insrkit09 - triangle,

Triangle tube insrkit09 - triangle,

£183.00
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Triangle tube insrkit11 - tube,

Triangle tube insrkit11 - tube,

£183.00
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Rheem ruud rtg20316an - /, 3-way

Rheem ruud rtg20316an - /, 3-way

£80.00
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Rinnai heating kit - heating,

Rinnai heating kit - heating,

£482.00
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Triangle tube insrkit10 - triangle,

Triangle tube insrkit10 - triangle,

£183.00
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Triangle tube ins155c instinct - triangle,

Triangle tube ins155c instinct - triangle,

£2000.00
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Scalecutter water - 3/4, in.

Scalecutter water - 3/4, in.

£366.15
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Navien ncb 250 - navien, wi-fi

Navien ncb 250 - navien, wi-fi

£2600.00
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Boiler combi feed nk300s - boiler,

Boiler combi feed nk300s - boiler,

£210.00
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Triangle tube insrkit06 - triangle,

Triangle tube insrkit06 - triangle,

£400.00
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Rinnai e110crp combi - e110crp, boiler

Rinnai e110crp combi - e110crp, boiler

£2495.00
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Resideo wv4460e2022 water - resideo,

Resideo wv4460e2022 water - resideo,

£174.95
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Wifi controlled 000 btu - ,

Wifi controlled 000 btu - ,

£999.00
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Rinnai ip150199cn indoor - ip150199cn,

Rinnai ip150199cn indoor - ip150199cn,

£2299.99
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415 52907 239 47463 01 - |, 239-47463-01

415 52907 239 47463 01 - |, 239-47463-01

£260.00
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Rinnai e75crp series - rinnai,

Rinnai e75crp series - rinnai,

£2295.00
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Navien nfb 200h condensing - navien, nfb-200h

Navien nfb 200h condensing - navien, nfb-200h

£3400.00
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Wtgo3 weil mclain - wtgo3-6,

Wtgo3 weil mclain - wtgo3-6,

£378.34
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Triangle tube instinct 155 - tube,

Triangle tube instinct 155 - tube,

£2100.00
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New swep e5n - new,

New swep e5n - new,

£225.00
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Navien 30008834a 1k050 - navien, -fb-1k050

Navien 30008834a 1k050 - navien, -fb-1k050

£157.50
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Engineered garments combi - garments,

Engineered garments combi - garments,

£120.00
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Caldera condensación gas - caldera,

Caldera condensación gas - caldera,

£2800.00
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Navien ncb 180 210 240 - navien,

Navien ncb 180 210 240 - navien,

£29.99
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Honeywell nk300s 100 boiler - honeywell, nk300s-100

Honeywell nk300s 100 boiler - honeywell, nk300s-100

£99.99
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Triangle tube insrkit05 blower - triangle,

Triangle tube insrkit05 blower - triangle,

£724.00
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Rinnai ip120199c combi gas - rinnai,

Rinnai ip120199c combi gas - rinnai,

£2854.45
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Rinnai 805000156 control - #805000156,

Rinnai 805000156 control - #805000156,

£395.95
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Nti 6000084915 diverter valve - nti,

Nti 6000084915 diverter valve - nti,

£102.26
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Triangle tube insfs155c - tube,

Triangle tube insfs155c - tube,

£3500.00
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Gas man heat - man,

Gas man heat - man,

£534.51
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Rinnai 807000212 series - rinnai,

Rinnai 807000212 series - rinnai,

£357.51
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Rinnai 805000176 pc board - rinnai, #805000176-

Rinnai 805000176 pc board - rinnai, #805000176-

£475.95
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Noritz nrcb180dv nrcb180 - nrcb180dv-ng,

Noritz nrcb180dv nrcb180 - nrcb180dv-ng,

£2907.48
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Triangle tube insrkit04 blower - triangle,

Triangle tube insrkit04 blower - triangle,

£585.00
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Triangle tube instinct ins199c - triangle,

Triangle tube instinct ins199c - triangle,

£2925.00
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Triangle tube plus - tube, plus-45

Triangle tube plus - tube, plus-45

£3500.00
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Burnham 112504 dhw piping - burnham,

Burnham 112504 dhw piping - burnham,

£202.50
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Triangle tube plus delta - tube, pg

Triangle tube plus delta - tube, pg

£3300.00
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Triangle tube insrkit17 - triangle,

Triangle tube insrkit17 - triangle,

£86.00
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Stainless steel inch - stainless, 90°

Stainless steel inch - stainless, 90°

£35.99
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Static caravan ariston - static, e

Static caravan ariston - static, e

£135.25
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Rinnai ip120199c combination - rinnai,

Rinnai ip120199c combination - rinnai,

£2581.70
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Resideo braukmann nk300s 100 - resideo,

Resideo braukmann nk300s 100 - resideo,

£125.00
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Noritz npd038 packing - noritz,

Noritz npd038 packing - noritz,

£20.82
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Noritz npd033 epdm - npd033, 1/2"

Noritz npd033 epdm - npd033, 1/2"

£20.62
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Rinnai series condensing - series,

Rinnai series condensing - series,

£108.00
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Navien 30012262b pcb control - 30012262b,

Navien 30012262b pcb control - 30012262b,

£234.99
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Rinnai series plus 8 gpm - series,

Rinnai series plus 8 gpm - series,

£3390.80
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Navien dual venturi npe ncb - dual,

Navien dual venturi npe ncb - dual,

£70.00
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Rinnai e50c flow - rinnai, switch

Rinnai e50c flow - rinnai, switch

£203.00
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Triangle tube insrkit19 - tube,

Triangle tube insrkit19 - tube,

£195.00
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Triangle tube insrkit25 burner - triangle,

Triangle tube insrkit25 burner - triangle,

£333.00
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New rational icc - new, 10-half

New rational icc - new, 10-half

£10499.99
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Triangle tube insrkit31 burner - triangle,

Triangle tube insrkit31 burner - triangle,

£75.00
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Rinnai ip090199c combination - rinnai,

Rinnai ip090199c combination - rinnai,

£2849.00
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Vesta inc vrc 140 - vesta.ds, inc.

Vesta inc vrc 140 - vesta.ds, inc.

£1990.00
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Rheem rtg20316l combustion fan - rheem,

Rheem rtg20316l combustion fan - rheem,

£125.00
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Navien combi boiler - , fan

Navien combi boiler - , fan

£90.00
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Navien gbt302 gbt - navien, /

Navien gbt302 gbt - navien, /

£49.99
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New 2023 convotherm combi - convotherm,

New 2023 convotherm combi - convotherm,

£8495.00
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Control board and panel - control,

Control board and panel - control,

£300.00
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Rinnai 805000084 pc board - #805000084-,

Rinnai 805000084 pc board - #805000084-,

£420.95
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Navien combi boiler nfb - navien, &

Navien combi boiler nfb - navien, &

£49.99
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Navien 30030359a ncb way - navien, ncb-h

Navien 30030359a ncb way - navien, ncb-h

£64.99
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Burnham 107152 k2wtc combi - burnham,

Burnham 107152 k2wtc combi - burnham,

£92.81
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Navien combi boiler solenoid - navien, combi-boiler

Navien combi boiler solenoid - navien, combi-boiler

£199.99
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Rinnai ip120199c combination - ip120199c,

Rinnai ip120199c combination - ip120199c,

£3037.30
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Navien combi boiler - navien, solenoid

Navien combi boiler - navien, solenoid

£199.99
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Rinnai ip150199c combination - ip150199c,

Rinnai ip150199c combination - ip150199c,

£3390.80
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Triangle tube instinct 199 - instinct,

Triangle tube instinct 199 - instinct,

£2400.00
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Noritz combi manifold kit - combi,

Noritz combi manifold kit - combi,

£491.95
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Noritz nrcb180dv nrcb180 - noritz, nrcb180dv-lp

Noritz nrcb180dv nrcb180 - noritz, nrcb180dv-lp

£2907.50
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Navien combi boiler blower - navien, combi-boiler

Navien combi boiler blower - navien, combi-boiler

£299.99
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Navien combi boiler pipe - combi-boiler,

Navien combi boiler pipe - combi-boiler,

£49.99
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Navien combi boiler solenoid - navien,

Navien combi boiler solenoid - navien,

£99.99
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Ariston combi evo - ariston, e-combi

Ariston combi evo - ariston, e-combi

£200.21
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Commercial water heater pan - commercial,

Commercial water heater pan - commercial,

£150.00
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White brute floor standing - brute,

White brute floor standing - brute,

£3280.00
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📊96 listings · from £20.62 · avg £1267.25

Browse 96 combi boilers listings currently in our index. Prices range from £20.62 to £10499.99, with an average of £1267.25. 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 combi boilers →

Try this: oil boiler external | 2 port motorised valve | 2kw water heater | 3kw water heater | baxi solo parts | baxi 105e | baxi expansion vessel | biasi riva | breville hot cup | central heating circulation pump

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Everything you need to know about combi boilers

Whether you are looking for a brand-new or second-hand combi boilers, 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 £20.62, while premium listings can reach £10499.99 — giving you a wide budget spread to work with. The average price of £1267.25 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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