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Vaillant ecoTEC Plus 637 Condensing Systems Gas Boiler 308528


Vaillant ecoTEC Plus 637 Condensing Systems Gas Boiler
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Product Ref: 127095

RRP: £1953.44
Our Price: £1085.17
Saving: £868.27




Delivery: 4 Working Days (Approx)

Manufacturer GuaranteeSedbuk Efficiency RatingNatural Gas BoilerThis Product is In Stock
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Code Description Inc. VAT Excl. VAT
127095 - Vaillant Systems Gas Boiler Ecotec Plus 637 £1,085.17 £923.55




Vaillant LPG Conversion Set

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Vaillant Eco Standard Horiz Flue Duct

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Vaillant Eco Horiz Flue Kit Telescopic

£93.72 (£79.76 exc. VAT)
Vaillant Vertical Flue Terminal 60/100

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Vaillant Ecomax Ii 90 Degree Elbow

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Vaillant Ecomax Ii 45 Degree Bends (Pair)

£64.11 (£54.56 exc. VAT)
Vaillant Ecomax Ii 470mm Flue Extension Kit

£34.50 (£29.36 exc. VAT)
Vaillant Ecomax Ii 970mm Flue Extension Kit

£45.36 (£38.60 exc. VAT)
Vaillant Ecomax Ii 1970mm Flue Extension Kit

£75.95 (£64.64 exc. VAT)
Vaillant Ecomax Ii Telescopic Duct Extension

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Vaillant Ecomax Ii Telescopic Offset

£72.00 (£61.28 exc. VAT)
Vaillant Ecomax Ii Sliding Sleeve

£40.09 (£34.12 exc. VAT)
Vaillant Flue Support Clips (5)

£34.50 (£29.36 exc. VAT)
Vaillant Eco Adj Flue Clip (3)

£40.42 (£34.40 exc. VAT)
Vaillant Eco Black Term Kit For StandarDegree Flue

£28.58 (£24.32 exc. VAT)




Vaillant Ecomax 1 Meter Standard Degree Flue Kit 125mm

£98.90 (£84.17 exc. VAT)
Vaillant Eco 125mm Flue Adapter

£39.43 (£33.56 exc. VAT)
Vaillant Ecomax Vertical Air/Flue Duct 125mm

£129.25 (£110.00 exc. VAT)
Vaillant 87 Degree Elbow 125mm Hgh Efficient

£50.29 (£42.80 exc. VAT)
Vaillant Ecomax 45 Degree Bends (Pair) 125mm

£87.80 (£74.72 exc. VAT)
Vaillant Ecomax 470mm Flue Extension Kit 125mm

£34.50 (£29.36 exc. VAT)
Vaillant Ecomax 970mm Flue Extension Kit 125mm

£51.28 (£43.64 exc. VAT)
Vaillant Ecomax 1970mm Flue Ex Kit 125mm

£92.73 (£78.92 exc. VAT)
Vaillant Ecomax Sliding Sleeve 125mm

£37.46 (£31.88 exc. VAT)




Vaillant Ecotec VR65 Control Centre

£51.82 (£44.10 exc. VAT)
Vaillant VRT360F Wireless Progammer Room Thermostat

£130.24 (£110.84 exc. VAT)
Vaillant VRT360 2 Channel Progammer Room Thermostat

£83.85 (£71.36 exc. VAT)
Vaillant VRC400 WeatHEr Compensator

£118.39 (£100.76 exc. VAT)
Vaillant Switch 130 Analogue Time Clock

£46.34 (£39.44 exc. VAT)
Vaillant Ecotec Switch 140 2Channel Progammer

£65.10 (£55.40 exc. VAT)




Seldek Flat / Pitched Aluminium Roof Flashing Kit No.1

£20.64 (£17.57 exc. VAT)




Grundfos Conlift Condensate Removal Pump

£165.45 (£140.81 exc. VAT)




High Temperature 310ml Cartridge

£5.48 (£4.66 exc. VAT)




Battery Powered Smoke Alarm

£6.83 (£5.81 exc. VAT)
Self Contained Carbon Monoxide Alarm

£30.86 (£26.26 exc. VAT)
Mains Operated Carbon Monoxide Alarm with battery backup

£59.34 (£50.50 exc. VAT)




PTFE Tape for Gas, Oil and Water

£0.96 (£0.82 exc. VAT)
15mm Premium Quality Ball-o-Fix Valve

£3.85 (£3.28 exc. VAT)
Automatic Bypass Valve

£17.04 (£14.50 exc. VAT)




Evolve Magnetic Scale Inhibitor

£20.07 (£17.08 exc. VAT)
Resolve Central Heating Inhibitor 1 Litre

£7.04 (£5.99 exc. VAT)




MagnaClean Professional Magnetic Filter 22mm

£105.74 (£89.99 exc. VAT)


The Vaillant ecoTEC Plus 637 System Boiler is part of a 6-model range of SEDBUK Band A rated system boilers. Each boiler in the range comes with a 2 year warranty, and offers energy-efficient and cost-effective heating.

Please Note - This model can be converted to LPG by using an LPG Conversion Kit. We recommend calling Vaillant for the appropriate instructions required

ecoTEC Plus 637 System Boiler Features

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

ecoTEC Plus 637 System Boiler Specifications


Height (mm) 720
Width (mm) 440
Depth (mm) 403
Central Heating Output (kW) 12.0 - 37.0
Central Heating Output (btu) 40,968 - 126,318
SEDBUK Band A


With this boiler, for a standard installation, you will require a standard horizontal flue kit and timeSWITCH 130 Plug In Timer. We have pre-checked these for you for your ease of ordering. Untick if not required and make the selection that you need.



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Vaillant ecoTEC Plus 637 Condensing Systems Gas Boiler


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