Boat heater
Boat heater for sale on Ireland's largest auction and classifieds sites
6kw 12v water diesel heater - 6kw, - £199.95
Oil extractor fuel • 046 petrol 0.52 • Water heater vehicle - Free postage - New and Used
Oil extractor fuel • 046 petrol 0.52 • Water heater vehicle - Free postage - New and Used
12v 6kw diesel water - 12v, - £179.99
Oil extractor type • Parking heater two • Working modes air - Free postage - New and Used
Oil extractor type • Parking heater two • Working modes air - Free postage - New and Used
Winter offer campervan - winter, - £197.26
24amp ours specified • Extra - Free postage - New and Used
24amp ours specified • Extra - Free postage - New and Used
6kw petrol diesel - diesel, water - £199.95
Portable ventilator axial • Blower ducting extractor • Industrial fan duct - Free postage - New and Used
Portable ventilator axial • Blower ducting extractor • Industrial fan duct - Free postage - New and Used
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Campervan 12v 230v - 15, l - £198.30
- Free postage - New and Used
- Free postage - New and Used
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48 listings · from £4.49 · avg £138.15
Browse 48 boat heater listings currently in our index. Prices range from £4.49 to £469.99, with an average of £138.15. 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 boat heater →
12v 8kw air - 12v, diesel - £79.95
Diesel air heater • Bluetooth lcd caravan • Garage portable app - Free postage - New and Used
Diesel air heater • Bluetooth lcd caravan • Garage portable app - Free postage - New and Used
12v diesel air heater with - diesel, - £52.70
12v diesel heater • Working when removed • From boat plus - Free postage - New and Used
12v diesel heater • Working when removed • From boat plus - Free postage - New and Used
Diesel air heater 8kw - diesel, 12v/24v - £77.95
Diesel heater toolbox • Premium all one • Design 110 240 - Free postage - New and Used
Diesel heater toolbox • Premium all one • Design 110 240 - Free postage - New and Used
5kw 8kw air and - and, diesel - £270.00
Great running hot • Tap shower campervan • Could also used - Free postage - New and Used
Great running hot • Tap shower campervan • Could also used - Free postage - New and Used
Diesel air heater 8kw 12v - air, - £79.95
Air diesel night • Parking heater 8kw • 12v lcd remote - Free postage - New and Used
Air diesel night • Parking heater 8kw • 12v lcd remote - Free postage - New and Used
Diesel air heater 8kw - diesel, - £95.99
Heater power 8kw • Bluetooth app function • Type heating ventilation - Free postage - New and Used
Heater power 8kw • Bluetooth app function • Type heating ventilation - Free postage - New and Used
12v 5kw air diesel heater - 5kw, - £54.99
Water tank 10l • Heater power 8kw • Muffler fuel gasoline - Free postage - New and Used
Water tank 10l • Heater power 8kw • Muffler fuel gasoline - Free postage - New and Used
Hcalory 2kw 8kw bluetooth - hcalory, 2kw/8kw - £18.85
Reaches 122 just • Minutes ensuring comfortable • Cozy temperature inside - Free postage - New and Used
Reaches 122 just • Minutes ensuring comfortable • Cozy temperature inside - Free postage - New and Used
Water diesel heater for - water, - £230.00
Before using heater • Carefully check all • Connections leaks safety - Free postage - New and Used
Before using heater • Carefully check all • Connections leaks safety - Free postage - New and Used
Portable water heater shower - £193.10
Portable water heater • Shower uses hot • Air from diesel - Free postage - New and Used
Portable water heater • Shower uses hot • Air from diesel - Free postage - New and Used
12v 6kw diesel - 12v, - £176.95
Air diesel heater • 12v 24v 110v • 220v 8kw car - Free postage - New and Used
Air diesel heater • 12v 24v 110v • 220v 8kw car - Free postage - New and Used
Air diesel night heater - night, - £79.95
Heater power 8kw • 12v diesel air • 5.5l all one - Free postage - New and Used
Heater power 8kw • 12v diesel air • 5.5l all one - Free postage - New and Used
Diesel air heater 8kw - diesel, 12v/24v - £72.95
Air diesel night • Heater remote lcd • Monitor app car - Free postage - New and Used
Air diesel night • Heater remote lcd • Monitor app car - Free postage - New and Used
12v 5kw water - 5kw, - £230.00
Structure type hydronic • Burner operation gasoline • Diesel perfect heating - Free postage - New and Used
Structure type hydronic • Burner operation gasoline • Diesel perfect heating - Free postage - New and Used
12v 5kw water - water, diesel - £230.00
Structure type hydronic • Burner operation gasoline • Diesel perfect heating - Free postage - New and Used
Structure type hydronic • Burner operation gasoline • Diesel perfect heating - Free postage - New and Used
Portable air diesel - air, night - £72.95
12v 24v 8kw • Air diesel night • Heater bluetooth app - Free postage - New and Used
12v 24v 8kw • Air diesel night • Heater bluetooth app - Free postage - New and Used
5kw 7kw air and - and, diesel - £209.99
Diesel air water • Heater full set • Shown pictures type - Free postage - New and Used
Diesel air water • Heater full set • Shown pictures type - Free postage - New and Used
8kw night diesel - diesel, air - £72.95
Portable ventilator axial • Blower ducting extractor • Industrial fan duct - Free postage - New and Used
Portable ventilator axial • Blower ducting extractor • Industrial fan duct - Free postage - New and Used
5kw lightweight heater 12v - 3.5kw, - £221.49
3.5kw lightweight heater • Ideal use vehicles • Defrosting windscreens secondary - Free postage - New and Used
3.5kw lightweight heater • Ideal use vehicles • Defrosting windscreens secondary - Free postage - New and Used
12v air diesel night - 12v, - £57.19
Air heater lcd • Screen fuel diesel • Easy installation compact - Free postage - New and Used
Air heater lcd • Screen fuel diesel • Easy installation compact - Free postage - New and Used
12v 24v 8kw - 8kw, diesel - £95.99
Power supply • Control your heater • Anywhere app via - Free postage - New and Used
Power supply • Control your heater • Anywhere app via - Free postage - New and Used
8kw 12v 24v 220 240v - 8kw, 220-240v - £79.95
Diesel air heater • Tool box app • Lcd power adapter - Free postage - New and Used
Diesel air heater • Tool box app • Lcd power adapter - Free postage - New and Used
12v 6kw diesel - water, w/ - £37.10
Sold parts not • Tested connecting wires • Just pumb used - Free postage - New and Used
Sold parts not • Tested connecting wires • Just pumb used - Free postage - New and Used
12v 6kw diesel water heater - 12v, - £198.87
Technical specifications operates • 12v 6kw heating • Power compatible diesel - Free postage - New and Used
Technical specifications operates • 12v 6kw heating • Power compatible diesel - Free postage - New and Used
12v 6kw diesel water - 6kw, - £179.99
Oil extractor type • Parking heater two • Working modes air - Free postage - New and Used
Oil extractor type • Parking heater two • Working modes air - Free postage - New and Used
6kw diesel water heater system - diesel, - £200.20
Gearzaar locking wheel • Nut remover removal • Tool set master - Free postage - New and Used
Gearzaar locking wheel • Nut remover removal • Tool set master - Free postage - New and Used
12v 24v 240v 8kw - 240v, - £90.00
Heater power temperatures • Drop unit will • Restart automatically ensuring - Free postage - New and Used
Heater power temperatures • Drop unit will • Restart automatically ensuring - Free postage - New and Used
Air diesel heater 8kw 12v - air, 12v/24v - £79.95
Air diesel heater • 240v 12v power • Converter adapter 5kw - Free postage - New and Used
Air diesel heater • 240v 12v power • Converter adapter 5kw - Free postage - New and Used
3kw tenere cab heater - 3kw, ii - £123.61
3kw compact heater • Grill outlet 12v • Core design copper - Free postage - New and Used
3kw compact heater • Grill outlet 12v • Core design copper - Free postage - New and Used
12v 6kw petrol diesel - 12v, - £191.99
25cm corner steady • Caravan leg winder • Drill extension jack - Free postage - New and Used
25cm corner steady • Caravan leg winder • Drill extension jack - Free postage - New and Used
Webasto thermo top diesel - top, - £469.99
Webasto thermo top • Have all kinds • Dp2 dp30 thomas - Free postage - New and Used
Webasto thermo top • Have all kinds • Dp2 dp30 thomas - Free postage - New and Used
8kw diesel air heater - diesel, 12v/24v - £89.99
Heater power 8kw • Options this versatile • Supports both 12v - Free postage - New and Used
Heater power 8kw • Options this versatile • Supports both 12v - Free postage - New and Used
8kw night diesel air - air, heater - £74.99
8kw heating power • Parking heater whether • You inside your - Free postage - New and Used
8kw heating power • Parking heater whether • You inside your - Free postage - New and Used
12v 6kw water diesel - 12v, heater - £191.99
Air diesel heater • Tool box 24v • Truck garage thermostat - Free postage - New and Used
Air diesel heater • Tool box 24v • Truck garage thermostat - Free postage - New and Used
12v 6kw water - 6kw, heater - £199.95
Trailing arm bush • Removal install tool • Ford mondeo mk4 - Free postage - New and Used
Trailing arm bush • Removal install tool • Ford mondeo mk4 - Free postage - New and Used
12v car water - water, travel - £4.49
- Free postage - New and Used
- Free postage - New and Used
12v 24v 8kw - 12v, night - £72.95
Heater power 8kw • Blower fan resistor • Fits audi polo - Free postage - New and Used
Heater power 8kw • Blower fan resistor • Fits audi polo - Free postage - New and Used
Mx50 diesel heater - mv, - £100.00
Heater mx50 from • Narrowboat see label • Details date manufacture - Free postage - New and Used
Heater mx50 from • Narrowboat see label • Details date manufacture - Free postage - New and Used
5kw 8kw air and - and, diesel - £270.00
Fuel diesel thermal • Power 5kw 8kw • This fantastic solution - Free postage - New and Used
Fuel diesel thermal • Power 5kw 8kw • This fantastic solution - Free postage - New and Used
Truma vent heater ducting - vent, - £7.95
White grey black • Beige dark brown • Silver truma outlets - Free postage - New and Used
White grey black • Beige dark brown • Silver truma outlets - Free postage - New and Used
Diesel air heater 8kw 12v - diesel, - £63.95
Air diesel heater • 12v 24v 8kw • Night app remote - Free postage - New and Used
Air diesel heater • 12v 24v 8kw • Night app remote - Free postage - New and Used
8kw diesel air - 8kw, 12v/24v - £83.90
8kw diesel air • Heater sunster high • Quality heating solution - Free postage - New and Used
8kw diesel air • Heater sunster high • Quality heating solution - Free postage - New and Used
Litre mains electric - mains, - £169.99
Litre compact design • Thick insulating foam • Reduce heat loss - Free postage - New and Used
Litre compact design • Thick insulating foam • Reduce heat loss - Free postage - New and Used
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Everything you need to know about boat heater
Whether you are looking for a brand-new or second-hand boat heater, 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 £4.49, while premium listings can reach £469.99 — giving you a wide budget spread to work with. The average price of £138.15 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.