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Home / Water Heating & Filtration / Back boiler refurbished & used for sale | For Sale UK
Electric tankless instant - instant, hot

Electric tankless instant - instant, hot

£97.19
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Baxi multifit 720627001 - baxi, plume

Baxi multifit 720627001 - baxi, plume

£65.00
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Fohen boiler model b98 - fohen,

Fohen boiler model b98 - fohen,

£156.70
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Vaillant 0020135131 main - 0020135131,

Vaillant 0020135131 main - 0020135131,

£79.99
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Glow worm power system - system, filter

Glow worm power system - system, filter

£87.00
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Heavy duty fabricated - fabricated, steel

Heavy duty fabricated - fabricated, steel

£52.70
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Thermal safety valve - thermal,

Thermal safety valve - thermal,

£99.99
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Morso squirrel stove - stove, back

Morso squirrel stove - stove, back

£425.00
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5kw digital instant boiling - digital,

5kw digital instant boiling - digital,

£149.00
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Baxi flow switch - baxi,

Baxi flow switch - baxi,

£10.80
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Wood burning back - wood, stove

Wood burning back - wood, stove

£1249.99
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Vaillant boiler service kit - vaillant,

Vaillant boiler service kit - vaillant,

£26.99
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Clear view vision 500 - view, back

Clear view vision 500 - view, back

£104.70
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Multi fuel stove - stove, with

Multi fuel stove - stove, with

£414.70
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Ideal evomax commercial - commercial, boiler

Ideal evomax commercial - commercial, boiler

£465.70
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Glowworm 0020197555 boiler - glowworm,

Glowworm 0020197555 boiler - glowworm,

£22.40
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Baxi duo tec - tec, 33

Baxi duo tec - tec, 33

£20.85
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Glow worm power system - glow-worm, filter

Glow worm power system - glow-worm, filter

£52.70
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Worcester bosch plume - worcester,

Worcester bosch plume - worcester,

£59.00
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Esbe valve and - and, actuator

Esbe valve and - and, actuator

£125.50
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Ideal boiler service kit - ideal,

Ideal boiler service kit - ideal,

£32.99
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Worcester boiler flow sensor - boiler,

Worcester boiler flow sensor - boiler,

£9.90
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Baxi bermuda lfe pw2 - baxi, c2

Baxi bermuda lfe pw2 - baxi, c2

£138.00
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Ideal boilers 177358 sump - boilers,

Ideal boilers 177358 sump - boilers,

£156.70
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Ideal logic heat exchanger

Ideal logic heat exchanger

£234.70
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Vaillant ecotec pro plus - ecotec,

Vaillant ecotec pro plus - ecotec,

£82.47
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Riello rdb burner - rdb, burner/boiler

Riello rdb burner - rdb, burner/boiler

£19.99
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Baxi duo tec - tec, 40

Baxi duo tec - tec, 40

£20.85
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Fernox tf1 sigma - sigma, filter,

Fernox tf1 sigma - sigma, filter,

£41.26
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130000btu tankless water - 130000btu,

130000btu tankless water - 130000btu,

£185.99
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Return manifold unit - manifold, worcester

Return manifold unit - manifold, worcester

£63.12
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Worcester greenstar junior 24i - worcester,

Worcester greenstar junior 24i - worcester,

£50.24
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Baxi back boiler honeywell - back,

Baxi back boiler honeywell - back,

£182.70
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Genuine baxi bermuda electrode - genuine,

Genuine baxi bermuda electrode - genuine,

£9.97
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Baxi flow switch black - flow,

Baxi flow switch black - flow,

£18.29
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Vaillant ecomax ecotec - ecomax, /

Vaillant ecomax ecotec - ecomax, /

£25.90
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New 18l instant gas - new, 8/10/12/16/18l

New 18l instant gas - new, 8/10/12/16/18l

£111.99
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Adey magnacleanse rapid flush - adey,

Adey magnacleanse rapid flush - adey,

£260.70
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Worcester greenstar junior 24i - worcester,

Worcester greenstar junior 24i - worcester,

£50.25
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Ferroli optimax plus - optimax,

Ferroli optimax plus - optimax,

£93.26
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Clearview 650 wrap around - , back

Clearview 650 wrap around - , back

£280.00
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Adey magnaclean professional - adey,

Adey magnaclean professional - adey,

£26.70
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Baxi bermuda 401 551 552 - 401,

Baxi bermuda 401 551 552 - 401,

£8.76
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Thermal safety valve - safety,

Thermal safety valve - safety,

£99.99
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Worcester boiler return unit - worcester,

Worcester boiler return unit - worcester,

£84.99
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Riello 20031996 r40 - 20031996,

Riello 20031996 r40 - 20031996,

£68.00
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Fernox tf1 total filter - tf1,

Fernox tf1 total filter - tf1,

£79.99
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Baxi bermuda sp2 - sp2, renewal

Baxi bermuda sp2 - sp2, renewal

£98.63
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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£54.99
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Baxi bermuda 552 back - ,

Baxi bermuda 552 back - ,

£260.70
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Worcester bosch ca keyless - 2,

Worcester bosch ca keyless - 2,

£36.79
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Camplux instant gas hot - instant,

Camplux instant gas hot - instant,

£127.89
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Magnetic boiler filter - magnetic,

Magnetic boiler filter - magnetic,

£39.95
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Ideal isar he24 he30 he35 - he35, &

Ideal isar he24 he30 he35 - he35, &

£174.99
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Wood burning stove with - with, back

Wood burning stove with - with, back

£989.99
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Daewoo instant hot - instant,

Daewoo instant hot - instant,

£49.99
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Genuine vaillant black boiler - genuine,

Genuine vaillant black boiler - genuine,

£15.61
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Worcester plume management kit - management,

Worcester plume management kit - management,

£57.90
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Worcester greenstarboiler - worcester,

Worcester greenstarboiler - worcester,

£14.01
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Worcester greenstar 24i - worcester,

Worcester greenstar 24i - worcester,

£12.40
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Vaillant 178983 water pump - 178983,

Vaillant 178983 water pump - 178983,

£119.99
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Baxi motor cartridge 7216534 - motor,

Baxi motor cartridge 7216534 - motor,

£20.85
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Ideal spark generator - ideal, lead

Ideal spark generator - ideal, lead

£10.80
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12v car van lorry - lorry, immersion

12v car van lorry - lorry, immersion

£9.90
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Ideal logic heat - ideal, 18

Ideal logic heat - ideal, 18

£18.95
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Genuine baxi condensate elbow - baxi,

Genuine baxi condensate elbow - baxi,

£14.99
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Vaillant ecotec vuw pro - vaillant,

Vaillant ecotec vuw pro - vaillant,

£7.99
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Baxi duotec burner - duotec, seal

Baxi duotec burner - duotec, seal

£12.89
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Pump station charging - pump,

Pump station charging - pump,

£549.00
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Baxi duotec 33 40 - duotec, 28

Baxi duotec 33 40 - duotec, 28

£8.99
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Space saving boiling - space,

Space saving boiling - space,

£129.99
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Baxi bermuda back boiler - bermuda,

Baxi bermuda back boiler - bermuda,

£44.95
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Worcester greenstar cdi - worcester, 30

Worcester greenstar cdi - worcester, 30

£11.25
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Pump station charging - pump,

Pump station charging - pump,

£549.00
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Ideal logic heat - 18, 24

Ideal logic heat - 18, 24

£19.75
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Worcester 87229638580

Worcester 87229638580

£9.75
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22mm adey magnaclean - 22mm,

22mm adey magnaclean - 22mm,

£37.10
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Worcester 87161431080 28 - 24,

Worcester 87161431080 28 - 24,

£59.99
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Glow worm 0020097214 way - 3,

Glow worm 0020097214 way - 3,

£23.00
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Vaillant ecotec erp pump cable - vaillant,

Vaillant ecotec erp pump cable - vaillant,

£9.73
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Vaillant 0010030632 high - 0010030632,

Vaillant 0010030632 high - 0010030632,

£78.70
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Grant yellow system 500mm oil - system,

Grant yellow system 500mm oil - system,

£35.00
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Worcester junior 24i - junior, 28i

Worcester junior 24i - junior, 28i

£32.99
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Vaillant ecotec pro 28 - vaillant, 24,

Vaillant ecotec pro 28 - vaillant, 24,

£58.20
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Baxi bermuda 401 back - baxi,

Baxi bermuda 401 back - baxi,

£159.99
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Glowworm energy 25c - glowworm, 30c

Glowworm energy 25c - glowworm, 30c

£10.99
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Vokera linea 28e boiler fan - vokera,

Vokera linea 28e boiler fan - vokera,

£40.00
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Wood burning range cooker - burning,

Wood burning range cooker - burning,

£1449.99
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Adey magnaclean professional - adey,

Adey magnaclean professional - adey,

£19.99
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Glowworm 0020079644 water - 0020079644,

Glowworm 0020079644 water - 0020079644,

£11.69
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Worcester air vent 87161064450 - worcester,

Worcester air vent 87161064450 - worcester,

£9.50
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Ucp 179032 volt gas - 179032,

Ucp 179032 volt gas - 179032,

£60.00
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Vaillant boiler water - water, pressure

Vaillant boiler water - water, pressure

£9.50
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Worcester greenstar junior 24i - greenstar,

Worcester greenstar junior 24i - greenstar,

£17.90
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Esbe actuator series new - new, in

Esbe actuator series new - new, in

£125.50
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Camplux portable gas water - gas,

Camplux portable gas water - gas,

£125.49
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📊96 listings · from £7.99 · avg £125.54
⚠️ These listings were last updated more than 12 days ago. Search for fresh listings

Browse 96 back boiler listings currently in our index. Prices range from £7.99 to £1449.99, with an average of £125.54. 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 back boiler →

Try this: combi boilers baxi | combi boilers | wilo pump | 2kw water heater | 3kw water heater | baxi solo parts | baxi 105e | baxi combi 80e | baxi combi 80 eco | biasi 24s

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Everything you need to know about back boiler

Whether you are looking for a brand-new or second-hand back 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 £7.99, while premium listings can reach £1449.99 — giving you a wide budget spread to work with. The average price of £125.54 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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