Skip to content
Contact Us Privacy & Policy Refund Policy Shipping Policy Terms & Services FAQ
Free Shipping in Selected Areas | Quality You Can Trust | Secure Checkout
Free Shipping in Selected Areas | Quality You Can Trust | Secure Checkout
Vaillant FlexoTHERM Ground Source Heat Pump 11kW - 400v - Getplumb
Vaillant FlexoTHERM Ground Source Heat Pump 11kW - 400v - Getplumb
Vaillant FlexoTHERM Ground Source Heat Pump 11kW - 400v - Getplumb
Vaillant FlexoTHERM Ground Source Heat Pump 11kW - 400v - Getplumb
Vaillant FlexoTHERM Ground Source Heat Pump 11kW - 400v - Getplumb
Vaillant FlexoTHERM Ground Source Heat Pump 11kW - 400v - Getplumb

Vaillant FlexoTHERM Ground Source Heat Pump 11kW - 400v

SKU 20257365
£0.00 - £0.00
£0.00
£7,026.19
£7,026.19 - £7,026.19
£7,026.19

The Vaillant flexoTHERM Ground Source Heat Pump 11kW 400V is a high-performance renewable heating solution designed to provide efficient space heating and hot water using energy from ground collectors or borehole systems. Featuring Vaillant Green iQ technology and an integrated EVI super compressor, the flexoTHERM delivers enhanced efficiency and reliable performance across a range of domestic and commercial applications. With sound levels as low as 42dB(A), it offers exceptionally quiet operation, while its modular design provides flexibility for different renewable heating configurations. The system can also be connected to a passive cooling module for low-energy climate control when used with suitable underfloor heating or fan coil systems. Up to seven flexoTHERM units can be cascaded for larger properties and commercial applications.

11 kW
Heat Output
400V
Electrical Supply
Up to 7 Units
Cascade Capability
45.2 dB(A)
Sound Power Level

Key features

01

11kW Ground Source Heating

Provides powerful renewable heating performance for domestic and larger residential applications using energy extracted from the ground.

02

Ground Collector or Borehole Compatible

The flexoTHERM can be connected to either a ground collector or borehole system, providing flexibility depending on available installation space.

03

Integrated EVI Super Compressor

The EVI technology injects additional refrigerant into the compression cycle to enhance heat pump performance and efficiency.

04

Exceptionally Quiet Operation

With low sound levels and Quiet Mark approval, the flexoTHERM is designed to provide comfortable heating without excessive operating noise.

05

Green iQ Technology

Vaillant's Green iQ technology is designed to optimise efficiency, performance and sustainability while supporting future-ready heating solutions.

06

Cascade Up to Seven Units

Multiple flexoTHERM heat pumps can be cascaded, making the system suitable for larger domestic properties and commercial heating applications.

Technical specification

Find all the essential technical information

Brand
Vaillant
Model
flexoTHERM
Product Type
Ground Source Heat Pump
Heat Output
11 kW
Electrical Supply
400V
Heat Source
Ground / Water
Cascade Capability
Up to 7 Heat Pumps
Sound Power Level
45.2 dB(A) B0/W35
Height
1183 mm
Depth
595 mm
Width
600 mm

What's included

✓ Vaillant flexoTHERM 11kW Heat Pump
✓ Integrated EVI Compressor
✓ Green iQ Technology
✓ Heat Pump Controls

Shipping information

Standard delivery

1–3 working days

Free local delivery over £100

Heavy item delivery

34.5kg unit — pallet delivery, please ensure access

£60.00

Store pickup

GetPlumb Reading store — usually ready in 24 hours

Free

Good to know

  • Tracking details sent by email once dispatched
  • Someone needs to be present to receive heavy items
  • Deliveries to Scottish Highlands and offshore may take longer — check at checkout
  • Installation is not included — see our approved installer network

Need more information regarding shipping?

View our complete shipping policy for delivery charges, eligible postcodes, delivery times, exclusions and more.

View Full Shipping Policy →

Frequently asked questions

What is the Vaillant flexoTHERM 11kW? +
The Vaillant flexoTHERM is a ground source heat pump designed to provide efficient renewable heating and hot water by extracting thermal energy from the ground or a suitable water source.
Can the flexoTHERM use a borehole instead of a ground collector? +
Yes. The flexoTHERM can be connected to either a ground collector or borehole system, allowing greater flexibility where available land is restricted.
Can this heat pump provide passive cooling? +
Yes. When connected to the appropriate passive cooling module and a suitable ground collector, the system can provide low-energy passive cooling.
What heating systems are suitable for passive cooling? +
Passive cooling is suitable with underfloor heating and fan coil systems, provided the complete system is designed for cooling operation.
JM RH SP
Online now Our Technical Support Team

Not sure this is the right unit?

Tell us your home size and current setup — we'll confirm the right kW output before you order.

Rated 4.9 for pre-sales support

Chat on WhatsApp
Call us Email

Mon–Fri, 8am–6pm · avg. reply in 12 min

Free Shipping

When you spend £60

Give Us A Call

+44 118 958 8882

Chat With Us

We offer 24-hour chat support

Store Pickup

Pick up your order yourself, for free

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare