Ground Source Heat Pumps

Spare Parts for Ground Source Heat Pumps

Varmetec is a trusted UK supplier of genuine spare parts for ground source heat pumps from all leading manufacturers, including NIBE, IVT, Stiebel Eltron, Vaillant, and Thermia. We help homeowners, installers, and service engineers keep ground source systems operating at maximum efficiency with a full range of high-quality components, available for fast delivery nationwide.

Ground source heat pumps are designed for long-term, low-carbon heating, but regular servicing and timely part replacement are essential to maintain their reliability and performance. At Varmetec, we stock everything from circulation pumps, heat exchangers, sensors, and expansion vessels to compressors, valves, and electronic control boards — all genuine or manufacturer-approved to ensure compatibility and long-term durability.

Our experienced team understands the importance of sourcing the right parts quickly, especially for systems providing year-round heating and hot water. That’s why we make it easy to find and order the exact components you need, with expert support and reliable dispatch.

Whether you’re maintaining a residential installation or servicing a commercial renewable heating project, Varmetec provides the parts and technical knowledge you can rely on. We’re committed to supporting the UK’s transition to sustainable heating by keeping ground source systems running smoothly and efficiently — for years to come.

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124 products

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  • Nibe Temperature Sensor 518726, New Generation

    Regular price From £11.94 GBP
    Regular price Sale price From £11.94 GBP
    Nibe new-generation temperature sensor part 518726
  • Nibe Outdoor sensor 318828/060766

    Regular price £59.99 GBP
    Regular price Sale price £59.99 GBP
    Nibe Outdoor Sensor 318828 front - light grey with V
  • Nibe Temperature Sensor 518721, Old Generation

    Regular price From £11.94 GBP
    Regular price Sale price From £11.94 GBP
    Nibe old-generation copper temperature sensor part 518721
  • Nibe CSS-32U Soft Start 1x230v - 318252

    Regular price £310.00 GBP
    Regular price Sale price £310.00 GBP
    Nibe CSS-32U Soft Start 318252 - light grey with V logo only
  • Nibe Base Card 818259

    Regular price £329.89 GBP
    Regular price Sale price £329.89 GBP
    Nibe Base Card 818259
  • Nibe Soft Start relay 3x400v, Old gen - 718078

    Regular price £299.99 GBP
    Regular price Sale price £299.99 GBP
    Nibe Soft Start Relay 718078 - light grey background with V logo
  • 18L - Hot Water Expansion Vessel

    Regular price £65.06 GBP
    Regular price Sale price £65.06 GBP
    18L - Hot Water Expansion Vessel
  • Nibe Display Unit 718337/ 718255

    Regular price £353.34 GBP
    Regular price Sale price £353.34 GBP
    Nibe display unit - front view
  • Combination Cold Water Valve - 2 Piece

    Regular price £110.33 GBP
    Regular price Sale price £110.33 GBP
    Combination Cold Water Valve 2 Piece on light grey background with Varme Tec V logo
  • 24L - Expansion Vessel

    Regular price £62.36 GBP
    Regular price Sale price £62.36 GBP
    24L - Expansion Vessel
  • Nibe 28mm/22mm 3-way Diverting Body 824082

    Regular price £134.89 GBP
    Regular price Sale price £134.89 GBP
    Nibe 3-way diverting valve body 824082 - front view showing T-shape, compression fittings and actuator stem
  • Nibe UPM2 K 25-75 180 Circulation Pump 067320

    Regular price £451.51 GBP
    Regular price Sale price £451.51 GBP
    NIBE 067320 Grundfos UPM2 K 25-75 180 circulation pump for F2040 F2050 F2120 F2300 S2125 heat pumps with PWM control harness
    Sold out
  • Nibe 3-Way Valve & Body 28mm 089152/218900

    Regular price £306.79 GBP
    Regular price Sale price £306.79 GBP
    Nibe 3-way motorised valve and body 089152/218900 - brass valve body and red EMV110 actuator motor
  • Nibe Display Unit - 718340

    Regular price £99.00 GBP
    Regular price Sale price £99.00 GBP
    Nibe Display Unit - 718340
    Sold out
  • Nibe RG10 Room Senor 018433

    Regular price £71.74 GBP
    Regular price Sale price £71.74 GBP
    Nibe RG10 Room Sensor 018433 on light grey background with Varme Tec V logo
  • VC4013 Honeywell Actuator Motor VXV - 624459

    Regular price £170.14 GBP
    Regular price Sale price £170.14 GBP
    VC4013 Honeywell Actuator Motor VXV - 624459

What Our Customers Say

At Varmetec, we take pride in delivering reliable service, genuine components, and expert support that our customers can depend on. From installers and service engineers to homeowners and renewable energy specialists, our clients trust us to keep their systems performing at their best. Here’s what they have to say about working with Varmetec.

We’ve relied on Varmetec for all our heat pump parts over the past year, and their service has been exceptional. Orders arrive quickly, the parts are always genuine, and the team’s technical knowledge saves us valuable time on site. A dependable partner for any installer.

James H., Renewable Energy Engineer, Bristol

Finding the right replacement parts for our NIBE system used to be a challenge — until we discovered Varmetec. Their website made it easy to identify what we needed, and the parts arrived within two days. Great service, clear communication, and genuine components.

Laura P., Homeowner, Surrey

As a heat pump service engineer, speed and accuracy are everything. Varmetec consistently provides the right components when I need them most. Their support team knows the products inside out — it’s refreshing to deal with people who genuinely understand the industry.

Mark D., Heating Specialist, Manchester

Varmetec has become our go-to supplier for large-scale renewable projects. Their stock availability and delivery reliability have been excellent, even for less common parts. A professional company that’s truly committed to supporting the UK’s renewable heating market.

Sarah L., Project Manager, Sustainable Developments Ltd