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Vaillant ecoTEC Plus 428 Condensing Conventional Gas Boiler

£1383.32 inc VAT
£1459.20 SAVE: £75.88
Available In Stock
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  • Reference:
  • Brand: Vaillant
  • Manufacturer Reference: 10002461
  • Delivery: Approx 5 Working Days
  • Condition: New
  • 2 years guarantee
  • FREE DELIVERY
  • Highest Trustscore

Code Description Inc. VAT Excl. VAT
PETECPLUS428 - Vaillant ecoTEC Plus 428 Condensing Conventional Gas Boiler £1,383.32 £1,152.77

100mm Diameter Flue Accessories

Vaillant Eco Standard Horiz Flue Duct (PECOSTD) £91.07 (£75.89 exc. VAT)
Vaillant Eco Horiz Flue Kit Telescopic (PVA303936) £108.69 (£90.58 exc. VAT)
Vaillant Vertical Flue Terminal 60/100 (PVA20065937) £118.48 (£98.74 exc. VAT)
Vaillant Ecomax Ii 90 Degree Elbow (PVA303910) £44.06 (£36.72 exc. VAT)
Vaillant Ecomax Ii 45 Degree Bends (Pair) (PVA303911) £73.44 (£61.20 exc. VAT)
Vaillant Ecomax Ii 470mm Flue Extension Kit (PVA303902) £36.23 (£30.19 exc. VAT)
Vaillant Ecomax Ii 970mm Flue Extension Kit (PVA303903) £49.94 (£41.62 exc. VAT)
Vaillant Ecomax Ii 1970mm Flue Extension Kit (PVA303905) £88.13 (£73.44 exc. VAT)
Vaillant Ecomax Ii Telescopic Duct Extension (PVA303906) £60.71 (£50.59 exc. VAT)
Vaillant Ecomax Ii Telescopic Offset (PVA303919) £81.27 (£67.73 exc. VAT)
Vaillant Ecomax Ii Sliding Sleeve (PVA303915) £41.13 (£34.27 exc. VAT)
Vaillant Flue Support Clips (5) (PVA303821) £34.27 (£28.56 exc. VAT)
Vaillant Eco Adj Flue Clip (3) (PVA303935) £46.02 (£38.35 exc. VAT)
Vaillant Eco Black Term Kit For StandarDegree Flue (PVA303934) £28.40 (£23.66 exc. VAT)

125mm Diameter Flue Accessories

Vaillant Ecomax 1 Meter Standard Degree Flue Kit 125mm (PVA303209) £105.75 (£88.13 exc. VAT)
Vaillant Eco 125mm Flue Adapter (PVA303926) £44.06 (£36.72 exc. VAT)
Vaillant Ecomax Vertical Air/Flue Duct 125mm (PVA303200) £150.80 (£125.66 exc. VAT)
Vaillant 87 Degree Elbow 125mm Hgh Efficient (PVA303210) £55.81 (£46.51 exc. VAT)
Vaillant Ecomax 45 Degree Bends (Pair) 125mm (PVA303211) £101.84 (£84.86 exc. VAT)
Vaillant Ecomax 470mm Flue Extension Kit 125mm (PVA303202) £38.19 (£31.82 exc. VAT)
Vaillant Ecomax 970mm Flue Extension Kit 125mm (PVA303203) £60.71 (£50.59 exc. VAT)
Vaillant Ecomax 1970mm Flue Ex Kit 125mm (PVA303205) £107.71 (£89.76 exc. VAT)
Vaillant Ecomax Sliding Sleeve 125mm (PVA303215) £41.13 (£34.27 exc. VAT)

Programmers And Timers

Vaillant Ecotec VR65 Control Centre (PVA307215) £74.42 (£62.02 exc. VAT)
Vaillant VRT360F Wireless Progammer Room Thermostat (127959) £134.15 (£111.79 exc. VAT)
Vaillant VRC400 WeatHEr Compensator (127892) £128.93 (£107.44 exc. VAT)

Flashing Kits


High Temperature Silicone


Smoke Alarms & Carbon Monoxide Alarms


Protect your Central Heating System with Magnaclean

Adey MagnaClean Professional 22 mm Black (608001) £116.65 (£97.21 exc. VAT)


The Vaillant ecoTEC Plus Open Vent 428 Boiler is the ideal solution for a traditional, open-vented heating system. With a 2 year warranty, a SEDBUK Band A Rating, and an incredibly low price, you won't find a more cost-effective solution on the market.

Please Note - This model can be converted to LPG. Instructions are supplied with the boiler

ecoTEC Plus Open Vent 428 Boiler Features

  • Compact and lightweight for easy installation
  • Built-in two-stage frost protection
  • Push button-programming along with comprehensive disgnostic information
  • Compatible with the ecoLEVEL Condensate Pump
  • Easy wiring consistent with the whole range of Vaillant products
  • Push-fit flue systems
  • Filling Loop Included
  • Large range of compatible, easy-to-install controls from Vaillant

ecoTEC Plus Open Vent 428 Boiler Specifications


Height (mm) 600
Width (mm) 375
Depth (mm) 340
Central Heating Output (kW) 5.3 - 28.2
Central Heating Output (btu) 18,094 - 96,275
SEDBUK Band A


Vaillant ecoTEC Plus 428 Condensing Conventional Gas Boiler

Available In Stock

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