Main boilers
Main boilers for sale on Ireland's largest auction and classifieds sites
Vailliant main heat - main, - £182.70
New unopened box • Heat exchanger fit • Vaillant ecotec plus - Free postage - New and Used
New unopened box • Heat exchanger fit • Vaillant ecotec plus - Free postage - New and Used
Main eco compact system - 15, - £22.48
467 eco compact • Part number 7684005 • System - Free postage - New and Used
467 eco compact • Part number 7684005 • System - Free postage - New and Used
Main combi eco 30 - eco, - £49.90
Part number 5114692 • Main combi eco • Elite boiler expansion - Free postage - New and Used
Part number 5114692 • Main combi eco • Elite boiler expansion - Free postage - New and Used
Main boiler complete - main, - £208.70
Working perfect condition - Free postage - New and Used
Working perfect condition - Free postage - New and Used
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Baxi main multifit standard - main, - £74.99
Multifit standard horizontal • Flue kit 685mm • 1199k compatible baxi - Free postage - New and Used
Multifit standard horizontal • Flue kit 685mm • 1199k compatible baxi - Free postage - New and Used
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48 listings · from £4.2 · avg £76.46
⚠️ These listings were last updated more than 16 days ago.
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Browse 48 main boilers listings currently in our index. Prices range from £4.2 to £499.35, with an average of £76.46. 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 →
Main eco elite - eco, & - £33.99
Baxi main potterton • Expansion vessel 10l • Upgrade your boiler - Free postage - New and Used
Baxi main potterton • Expansion vessel 10l • Upgrade your boiler - Free postage - New and Used
Baxi main 100mm standard - baxi, - £74.99
Oem flue kit • Manufacturer part number • 7222019 100 multifit - Free postage - New and Used
Oem flue kit • Manufacturer part number • 7222019 100 multifit - Free postage - New and Used
Vokera compact boiler - compact, - £499.35
Compact condensing combi • Boiler maximum power • Output 19.5kw that - Free postage - New and Used
Compact condensing combi • Boiler maximum power • Output 19.5kw that - Free postage - New and Used
Axiom amp mains - 16, - £15.00
Shortest switching minutes - Free postage - New and Used
Shortest switching minutes - Free postage - New and Used
Baxi main 100mm - main, standard - £63.10
New main flue • Elbow sealed box - Free postage - New and Used
New main flue • Elbow sealed box - Free postage - New and Used
Glowworm ultracom 24hxi 30hxi - glowworm, - £369.99
New genuine glow • Worm part box • 2000801701 - Free postage - New and Used
New genuine glow • Worm part box • 2000801701 - Free postage - New and Used
Main combi eco 30 - combi, & - £58.85
Combi baxi platinum • Main eco elite • Potterton gold - Free postage - New and Used
Combi baxi platinum • Main eco elite • Potterton gold - Free postage - New and Used
Baxi main potterton thermister - baxi, - £4.20
Fans fan coils • Motors failing due • Boiler overheating will - Free postage - New and Used
Fans fan coils • Motors failing due • Boiler overheating will - Free postage - New and Used
Genuine morco mcb3001 main - mcb3001, pcb - £75.00
Failures defects caused • Misuse will resolve • Your case within - Free postage - New and Used
Failures defects caused • Misuse will resolve • Your case within - Free postage - New and Used
Main combi 24he potterton - 24,, - £43.90
Potterton performa eco • Main combi failures • Defects caused misuse - Free postage - New and Used
Potterton performa eco • Main combi failures • Defects caused misuse - Free postage - New and Used
Glowworm main heat exchanger - main, - £139.00
Betacom 28a 2011 • 2012 019 ultracom • Cxi 2010 2015 - Free postage - New and Used
Betacom 28a 2011 • 2012 019 ultracom • Cxi 2010 2015 - Free postage - New and Used
Main combi eco elite dhw - main, - £36.50
Combi erp 467 • Check compatibility numbers • Given below main - Free postage - New and Used
Combi erp 467 • Check compatibility numbers • Given below main - Free postage - New and Used
Worcester greenstar 18 - greenstar, 12 - £101.97
311 greenstar system • Lpg - Free postage - New and Used
311 greenstar system • Lpg - Free postage - New and Used
Main eco compact - compact, 15 - £84.00
Fans fan coils • Motors failing due • Boiler overheating will - Free postage - New and Used
Fans fan coils • Motors failing due • Boiler overheating will - Free postage - New and Used
Ideal logic combi - combi, 35 - £149.99
Atlantic combi 349 • Independent c24 348 • Classic - Free postage - New and Used
Atlantic combi 349 • Independent c24 348 • Classic - Free postage - New and Used
Main combi eco elite - main, - £51.99
Main combi erp • Serial ending - Free postage - New and Used
Main combi erp • Serial ending - Free postage - New and Used
Main combi eco 30 - main, - £50.85
Main combi eco • Elite 5114692 boiler • Expansion vessel litre - Free postage - New and Used
Main combi eco • Elite 5114692 boiler • Expansion vessel litre - Free postage - New and Used
Main eco compact combi - eco, 25 - £72.38
Ensure your boiler • Operates smoothly thebaxi • Potterton main 7683801 - Free postage - New and Used
Ensure your boiler • Operates smoothly thebaxi • Potterton main 7683801 - Free postage - New and Used
Main combi 24he - , boiler - £10.00
Main 248207 cable • Selector switch pump • Made love will - Free postage - New and Used
Main 248207 cable • Selector switch pump • Made love will - Free postage - New and Used
Main combi eco - main, 30 - £49.99
Part 5114692 main • Combi expansion vessel • Fits manufacturer winkelmann - Free postage - New and Used
Part 5114692 main • Combi expansion vessel • Fits manufacturer winkelmann - Free postage - New and Used
Baxi potterton main - &, - £12.15
- Free postage - New and Used
- Free postage - New and Used
Baxi boiler servicing kit - baxi, - £48.99
Ensure your baxi • Potterton boiler operates • Efficiently this high - Free postage - New and Used
Ensure your baxi • Potterton boiler operates • Efficiently this high - Free postage - New and Used
Main combi eco 30 - main, & - £49.99
Part number 5114692 • Main combi eco • Elite boiler expansion - Free postage - New and Used
Part number 5114692 • Main combi eco • Elite boiler expansion - Free postage - New and Used
Ideal logic 177708 pcb primary - 177708, - £167.09
Brand new box • Pcb ideal logic • Primary l12 part - Free postage - New and Used
Brand new box • Pcb ideal logic • Primary l12 part - Free postage - New and Used
Main combi erp eco elite - combi, - £50.00
Main combi erp • Serial ending • Eco fans fan - Free postage - New and Used
Main combi erp • Serial ending • Eco fans fan - Free postage - New and Used
Baxi combi 80e 105e - combi, - £55.00
Potterton performa system • Baxi combi • 105he main - Free postage - New and Used
Potterton performa system • Baxi combi • 105he main - Free postage - New and Used
Main combi eco 30 - 30, - £42.99
Main combi eco • Elite pre serial • Number mmh 1512 - Free postage - New and Used
Main combi eco • Elite pre serial • Number mmh 1512 - Free postage - New and Used
Service kit for baxi main - for, - £107.71
Electrode kit part • Hydraulic inlet assembly • 5114710 automatic air - Free postage - New and Used
Electrode kit part • Hydraulic inlet assembly • 5114710 automatic air - Free postage - New and Used
Main eco compact 30 - compact, combi - £8.99
Combi erp baxi • System boiler elbow • Condensate pipe 7210676 - Free postage - New and Used
Combi erp baxi • System boiler elbow • Condensate pipe 7210676 - Free postage - New and Used
Main combi eco - combi, - £49.90
Combi eco 467 • Elite pre serial • Number mmh 1512 - Free postage - New and Used
Combi eco 467 • Elite pre serial • Number mmh 1512 - Free postage - New and Used
Baxi main potterton - baxi, tap - £22.99
- Free postage - New and Used
- Free postage - New and Used
Baxi duo tec combi - combi, 24 - £34.70
Baxi duo tec • Combi erp serial • This part will - Free postage - New and Used
Baxi duo tec • Combi erp serial • This part will - Free postage - New and Used
Main combi eco 25 - eco, - £36.99
Fans fan coils • Motors failing due • Boiler overheating will - Free postage - New and Used
Fans fan coils • Motors failing due • Boiler overheating will - Free postage - New and Used
Ideal atlantic primary - primary, pcb - £65.00
Ideal atlantic failures • Defects caused misuse • Exclusive - Free postage - New and Used
Ideal atlantic failures • Defects caused misuse • Exclusive - Free postage - New and Used
Worcester greenstar 12ri - worcester, - £99.89
311 greenstar junior • Mk5 2013 lpg • System - Free postage - New and Used
311 greenstar junior • Mk5 2013 lpg • System - Free postage - New and Used
Main eco compact - eco, combi - £52.99
- Free postage - New and Used
- Free postage - New and Used
New main eco compact 30 - main, - £39.99
077 baxi combi • 624 lpg • 630 - Free postage - New and Used
077 baxi combi • 624 lpg • 630 - Free postage - New and Used
Main combi eco 30 - combi, - £56.95
Combi baxi platinum • Main eco elite • Potterton gold - Free postage - New and Used
Combi baxi platinum • Main eco elite • Potterton gold - Free postage - New and Used
Main combi eco elite - 25,, - £33.35
Heating trade supplies • Tyne view terrace • Wear ne28 6sg - Free postage - New and Used
Heating trade supplies • Tyne view terrace • Wear ne28 6sg - Free postage - New and Used
Main combi erp eco elite - combi, 25 - £22.21
Potterton promax combi • Gold flow switch • Hall effect sensor - Free postage - New and Used
Potterton promax combi • Gold flow switch • Hall effect sensor - Free postage - New and Used
Baxi potterton main - /potterton, /main - £13.68
Heating trade supplies • Tyne view terrace • Wear ne28 6sg - Free postage - New and Used
Heating trade supplies • Tyne view terrace • Wear ne28 6sg - Free postage - New and Used
Main combi eco 25 - 25, - £49.90
Potterton heatmax combi • Part 5114691 • Gold - Free postage - New and Used
Potterton heatmax combi • Part 5114691 • Gold - Free postage - New and Used
Main combi eco - main, - £24.95
Combi main eco • Elite • System - Free postage - New and Used
Combi main eco • Elite • System - Free postage - New and Used
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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 48 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 £4.2, while premium listings can reach £499.35 — giving you a wide budget spread to work with. The average price of £76.46 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.