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Main boilers

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Main boilers for sale on largest auction and classifieds sites

Home / Water Heating & Filtration / Main boilers for sale – 96 used, around £40 | For Sale UK
Gledhill pulsacoil class - gledhill, a

Gledhill pulsacoil class - gledhill, a

£51.79
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Main combi eco 30 - 30, &

Main combi eco 30 - 30, &

£49.90
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Main combi eco 30 - 30,

Main combi eco 30 - 30,

£33.70
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Main eco compact combi - main, 25

Main eco compact combi - main, 25

£72.38
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Vaillant group boiler main - boiler, pcb

Vaillant group boiler main - boiler, pcb

£31.90
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Baxi main potterton - potterton, 248225

Baxi main potterton - potterton, 248225

£25.00
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Potterton baxi main boilers - main,

Potterton baxi main boilers - main,

£6.45
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Vaillant ecotec pro plus - vaillant, pro/plus

Vaillant ecotec pro plus - vaillant, pro/plus

£79.99
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Worcester greenstar erp - , main

Worcester greenstar erp - , main

£208.70
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Baxi 7663535 dhw - 7663535, flow

Baxi 7663535 dhw - 7663535, flow

£16.99
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Main eco compact combi - 30,

Main eco compact combi - 30,

£22.71
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Main eco compact 25 - main, &

Main eco compact 25 - main, &

£54.39
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Baxi main 100mm standard - baxi, 60/100mm

Baxi main 100mm standard - baxi, 60/100mm

£84.99
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Worcester 8716119315 greenstar - worcester,

Worcester 8716119315 greenstar - worcester,

£344.95
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Electric combi boiler - , 14kw

Electric combi boiler - , 14kw

£771.70
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Main 248061 7224344 combi - 248061, 24

Main 248061 7224344 combi - 248061, 24

£73.25
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Main eco compact system 18 - system,

Main eco compact system 18 - system,

£66.00
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Main combi eco 30 - main, &

Main combi eco 30 - main, &

£20.85
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Main 5132454 12l - 5132454, inlet

Main 5132454 12l - 5132454, inlet

£42.63
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Main combi eco - 30, 30

Main combi eco - 30, 30

£30.00
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Main eco compact 30 - 25,

Main eco compact 30 - 25,

£39.99
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Main combi 30eco - &, eco

Main combi 30eco - &, eco

£22.99
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Main heat exchanger vaillant - main,

Main heat exchanger vaillant - main,

£312.70
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Main combi eco - combi,

Main combi eco - combi,

£24.85
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Brand new worcester main heat - brand,

Brand new worcester main heat - brand,

£182.70
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Main combi eco boiler - combi,

Main combi eco boiler - combi,

£25.65
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Main combi 30he - 30he, &

Main combi 30he - 30he, &

£34.80
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Hts baxi potterton main - hts,

Hts baxi potterton main - hts,

£5.29
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Ideal 175160 main heat - ideal,

Ideal 175160 main heat - ideal,

£299.99
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Main combi he 24he - combi,

Main combi he 24he - combi,

£77.59
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Ideal mini c24 c28 - ideal,

Ideal mini c24 c28 - ideal,

£35.00
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Vaillant 0020135131 main - vaillant,

Vaillant 0020135131 main - vaillant,

£79.99
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Main eco compact combi - eco, 25

Main eco compact combi - eco, 25

£12.45
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Main combi eco - 30, &

Main combi eco - 30, &

£40.65
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Main eco compact combi - main,

Main eco compact combi - main,

£22.71
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Main combi eco 30 - main,

Main combi eco 30 - main,

£56.99
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Service kit for baxi - main, and

Service kit for baxi - main, and

£107.60
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Main eco elite - &, 25

Main eco elite - &, 25

£33.65
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Baxi main eco dhw heat - main,

Baxi main eco dhw heat - main,

£53.99
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Worcester 871860492a0 main - worcester,

Worcester 871860492a0 main - worcester,

£175.00
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Main combi erp - erp, eco

Main combi erp - erp, eco

£19.50
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Main eco compact 30 - eco, combi

Main eco compact 30 - eco, combi

£8.99
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Worcester greenstar junior 24i - greenstar,

Worcester greenstar junior 24i - greenstar,

£107.92
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Worcester greenstar 18 - worcester,

Worcester greenstar 18 - worcester,

£101.87
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Main combi eco 25 - main, &

Main combi eco 25 - main, &

£39.73
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Baxi 5120219 boiler pcb - baxi,

Baxi 5120219 boiler pcb - baxi,

£19.90
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Main service kit 5130293 - kit,

Main service kit 5130293 - kit,

£63.94
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Baxi 7683976 pressure relief - baxi,

Baxi 7683976 pressure relief - baxi,

£17.82
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Main combi 24he 30he - combi,

Main combi 24he 30he - combi,

£12.49
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Main 7683969 eco compact 30 - eco, 25

Main 7683969 eco compact 30 - eco, 25

£16.99
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Main combi eco elite - 30,

Main combi eco elite - 30,

£12.89
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Main eco compact system - eco, 18

Main eco compact system - eco, 18

£22.48
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Vaillant ecotec plus - vaillant,

Vaillant ecotec plus - vaillant,

£65.50
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Main combi 24he 30he eco - main,

Main combi 24he 30he eco - main,

£37.99
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Main combi 24se 24he 30he - main,

Main combi 24se 24he 30he - main,

£4.20
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Baxi potterton main boiler - baxi,

Baxi potterton main boiler - baxi,

£6.79
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Main combi eco - main,

Main combi eco - main,

£24.95
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Main combi boiler - 30, he

Main combi boiler - 30, he

£3.99
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Main eco compact combi - eco, 30

Main eco compact combi - eco, 30

£19.99
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Main eco compact system 18 - eco,

Main eco compact system 18 - eco,

£59.99
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Potterton main assure combi - potterton,

Potterton main assure combi - potterton,

£94.30
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Baxi duotec h28he - baxi,

Baxi duotec h28he - baxi,

£19.95
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Baxi 5121447 fan - fan, with

Baxi 5121447 fan - fan, with

£42.85
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Main combi eco - main, elite

Main combi eco - main, elite

£24.99
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Main 5114710 hydraulic inlet - main,

Main 5114710 hydraulic inlet - main,

£44.53
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Main combi eco 30 - 30,

Main combi eco 30 - 30,

£42.99
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Main combi eco 25 - combi,

Main combi eco 25 - combi,

£37.50
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Main heat exchanger for - heat, baxi

Main heat exchanger for - heat, baxi

£43.67
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Main combi 24se 24he - main,

Main combi 24se 24he - main,

£3.45
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Main combi 25eco elite 30eco - &,

Main combi 25eco elite 30eco - &,

£8.95
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Main combi eco no - eco,

Main combi eco no - eco,

£12.35
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Main eco compact system - eco,

Main eco compact system - eco,

£59.99
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Main combi 30he - main, 18he

Main combi 30he - main, 18he

£33.00
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Main ecoelite erp 16 - 30,

Main ecoelite erp 16 - 30,

£27.00
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Baxi main potterton boiler - baxi,

Baxi main potterton boiler - baxi,

£37.99
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Worcester bosch 24i junior - bosch,

Worcester bosch 24i junior - bosch,

£150.00
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Ideal logic plus combi - ideal, 24

Ideal logic plus combi - ideal, 24

£119.90
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Main combi boiler 248207 - 24,

Main combi boiler 248207 - 24,

£10.00
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Main eco compact system - eco, 15

Main eco compact system - eco, 15

£139.99
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Main eco compact combi - main,

Main eco compact combi - main,

£12.95
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Main combi 24he - 24, boiler

Main combi 24he - 24, boiler

£12.50
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Baxi main potterton 248225 tap - main,

Baxi main potterton 248225 tap - main,

£22.99
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Main eco compact - compact, combi

Main eco compact - compact, combi

£12.90
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Worcester greenstar main - worcester,

Worcester greenstar main - worcester,

£84.99
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Main eco compact combi - eco, 30

Main eco compact combi - eco, 30

£23.90
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Baxi main potterton thermister - main,

Baxi main potterton thermister - main,

£4.31
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BAXI&MAIN&POTTERTON&PLATINUM

BAXI&MAIN&POTTERTON&PLATINUM

£48.99
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Worcester greenstar junior 24i - worcester,

Worcester greenstar junior 24i - worcester,

£93.99
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Main eco compact combi - main,

Main eco compact combi - main,

£49.99
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Main eco compact 30 - compact,

Main eco compact 30 - compact,

£39.99
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Main combi eco 25 - main,

Main combi eco 25 - main,

£42.50
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Main unvented 120l - main, 150l

Main unvented 120l - main, 150l

£39.26
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Worcester greenstar - worcester,

Worcester greenstar - worcester,

£98.10
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Main eco combi elite - eco,

Main eco combi elite - eco,

£89.30
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Ideal 175615 main heat - main,

Ideal 175615 main heat - main,

£149.99
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Main combi 24he - 24, potterton

Main combi 24he - 24, potterton

£42.63
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📊96 listings · from £3.45 · avg £64.83
⚠️ These listings were last updated more than 25 days ago. Search for fresh listings

Browse 96 main boilers listings currently in our index. Prices range from £3.45 to £771.7, with an average of £64.83. 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 main boilers →

Try this: multipoint water heater | natural gas water heater | propane water heaters | rinnai water heater | stelrad radiators | tankless water heater | unvented indirect hot water cylinder | vaillant combi boiler | water ice machine | water softner

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Everything you need to know about main boilers

Whether you are looking for a brand-new or second-hand main 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 £3.45, while premium listings can reach £771.7 — giving you a wide budget spread to work with. The average price of £64.83 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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