IVT Greenline HE
The IVT Greenline HE is no longer supplied new in the UK
IVT stopped supplying heat pumps to the UK market. If you already have an IVT ground source heat pump, we still service these units and can supply spare parts. The information below is kept as a reference for existing owners.
The IVT Greenline HE is a ground source heat pump range manufactured by IVT, a subsidiary of Bosch Thermotechnik. It was widely installed across the UK before IVT withdrew from the market.
Product Specifications
| Output range | 6–17 kW |
| Power supply | Single phase or three phase (model-dependent) |
| Max flow temperature | Up to 65°C |
| Circulation pump | Low-energy, variable-speed |
| Monitoring | Built-in Energy Measurement System (EMS), tracks heating and hot water output separately |
| Refrigerant | R407C (check your unit's data plate, as later units may vary) |
Always confirm exact specifications against your unit's data plate or model number, as details vary across the Greenline HE range and production years.
Other documentation
Servicing your IVT Greenline HE
We still carry out annual servicing on IVT Greenline HE units, even though IVT is no longer an active brand in the UK. A typical service includes:
- Checking flow rates, kWh usage and heat output (COP)
- Ensuring the defrost cycle is operating correctly (in winter)
- A full visual inspection of the system
- Checking refrigerant pressures and circuit performance
This is a snapshot of the work completed, not the full list.
Since IVT left the UK market, staying on top of servicing matters more than ever. Catching a fault early gives you time to source parts or plan a repair, rather than being forced into an emergency replacement.
Book A Heat Pump Service
Spare parts & repairs
Because IVT no longer supplies the UK, parts availability is more limited than it once was, and lead times can be longer for less common components. As a former exclusive UK importer for IVT, Alto Energy holds knowledge of the range and access to parts through our existing supply relationships, and we can advise on realistic timeframes before starting any repair.
If your unit has developed a fault:
- Contact our technical support team with your model and serial number (found on the unit's data plate)
- We'll advise whether the part is readily available, has a longer lead time, or is no longer obtainable
- We'll give you a repair quote so you can weigh it against replacement
When is it worth replacing your IVT Greenline HE?
Repairing an ageing IVT unit isn't always the cheapest way forward. If you're weighing up repair against replacement, here's what's worth thinking about:
15+ Years Old
It might still be working fine, but a heat pump this age is running on technology that's been comfortably outperformed by newer systems.
Repeated Call-outs
If repairs are becoming a regular occurrence, the cost adds up fast, and at some point a replacement works out cheaper than repeatedly patching the same system.
Rising Bills
Using more electricity for the same amount of heat is often a sign the components inside are ageing and working harder than they used to.
Major Component Failure
A failed compressor in particular can be a costly repair, and on an older unit it's worth asking whether that money is better spent on a new system instead.
Parts Availability
IVT no longer supplies the UK market, so sourcing components takes longer and costs more than it used to, and that gap will only widen.
Other Works Planned
If you're extending or renovating, it's often the right moment to upgrade your heating alongside it rather than doing it twice.
Looking to install a new ground source heat pump?
If you're replacing an IVT Greenline HE, or considering ground source heat pump for the first time, we now install the Viessmann Vitocal range. We handle the design, supply and commissioning of the system, along with MCS certification, then recommend an installer from our trusted Alto Assured network to carry out the installation. If your existing ground loop is still in good condition, it may be possible to reuse it and keep costs down.
Get a Replacement QuoteFrequently Asked Questions
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IVT no longer supplies the UK market, so parts are becoming harder to source over time. Some components can still be found, but availability isn't guaranteed, and it depends on the specific part and your unit's age. This is one of the main reasons regular servicing matters, since it catches faults early while a repair is still possible.
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It depends on the condition and specification of your existing loop. We assess rather than assuming either way, so you get an accurate answer for your system before any work is agreed.
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Yes, we carry out annual servicing on IVT Greenline HE units even though IVT is no longer active in the UK.
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It depends on the age of your unit, how often it's needed repairing, and whether parts are still available for the fault in question. As a rough guide, units over 15 years old, or ones needing frequent repairs, are usually worth assessing for replacement rather than continuing to repair.
Our Accreditations
We take the quality of our products and services very seriously. This is reflected in the accreditations we have obtained in order to ensure that we are completely compliant with all of the relevant industry standards.
