Only 152 grams of natural refrigerant per module. Expansion vessel and safety equipment are integrated, so there is no ventilation duct and no extra holes in the wall.
QG is more than a technical product. It is made to fit in, beside the kitchen or laundry cabinets, and to be something to feel proud of having chosen.
One cabinet, two sizes:
QG-7
QG-7 and QG-14 share one cabinet, 1,850 mm tall.
Six pipe connections in total, four of them on top. An optional kit brings the brine connections to the top as well.
A standardized 600 × 620 mm footprint, the same for QG-7 and QG-14.
Only 152 g of R290 per module: no ventilation duct, no holes in the wall, no extra safety devices.
Over-the-air updates bring new features for free, with remote diagnostics built in.
SCOP 5.1, and a heat pump that adapts to the lowest electricity prices on its own.
Heated via a heat exchanger the moment the tap opens, never stored in a tank.
Heating, cooling and hot water from a single white cabinet, in 7 or 14 kW.
Passive cooling is integrated as an option, and every QG is cloud connected from the factory.
The built-in accumulator tank holds heat at up to around 80 °C, charged when electricity is cheap.
A standardized 600 × 620 mm footprint, 1,850 mm tall.
Other R290 ground source heat pumps carry more refrigerant and fall under stricter safety rules: ventilation through an outside wall, automatic self-tests and function tests. QG needs none of that.
Declared load profile, with up to 350 L at 40 °C in Extra hot water mode.
QG-7 (EN 12102); 41.5 dB for QG-14.
Works up to 80 °C on the heating side (63 °C without the immersion heater), so it suits new builds and replacements alike.
Cold climate at 35 °C (EN 14825). Energy class A+++.
An all-in-one unit with everything built in, and replaceable compressor modules that make service quick.
QG arrives as one all-in-one unit with the expansion vessel and safety equipment built in. Connect it and it is ready to run.
QG-14 keeps delivering heat when one compressor is taken out of service or stops unexpectedly.
Shorter service visits, less travel and lower stock costs for the installer.
Ready to see what QG would cost?
QG-7-M compressor modules, a hydraulic unit and the tank. Everything a ground source installation needs comes inside the cabinet.
The app, connectivity, remote diagnostics and automatic updates are included at no extra cost, where many competitors charge for them. Stable today, with new capabilities tomorrow.
New features reach the heat pump automatically and at no cost, including heat pumps that are already installed.
Set the week's schedule in the Qvantum App and, as an option, let QG avoid the most expensive hours with no loss of comfort.
flexready® heat pumps respond to the grid, easing strain and lowering energy costs, and work with partner energy platforms, solar panels and home batteries.
Cloud connected from the factory, so predictive maintenance and service can happen without a home visit.
With spot price optimisation activated, QG follows the hourly electricity price: it charges when power is cheap and runs on stored heat when prices peak.
Illustrative example. Actual timing follows the local electricity price or tariff and the settings in the Qvantum App. Indoor comfort stays the same all day.
What homeowners and installers usually ask about QG.
Yes. QG holds only 152 g of R290 per circuit, below the limit that calls for ventilation ducting or extra safety devices.
Yes. It supplies up to 80 °C on the heating side, so it suits older systems too, and fits a standardized 600 × 620 mm footprint.
QG comes as QG-7 and QG-14, with 1.2–7 and 1.2–14 kW heat output. QG-14 has two compressor modules: it runs on one when demand is low, and keeps delivering heat if one is taken out of service.
The built-in accumulator tank works as a thermal battery. QG charges it to around 80 °C when electricity is cheap and heats the home from it when prices peak, once spot price optimisation is activated.
Declared load profile XL. Hot water volume at 40 °C is 255 L for QG-7 and 275 L for QG-14 (EN 16147), and up to 350 L when Extra hot water mode is on.
The compressor modules are replaceable and double as spare parts, and remote diagnostics let many issues be solved without a visit.
How QG compares with competing ground source heat pumps, and what each advantage means for projects and for the installer's business.
QG against competing ground source heat pumps, point by point.
| Criterion | QG | Impact |
|---|---|---|
| Ambient loop suitable | Yes | Opens up a wide range of projects. |
| Active cooling | Yes | Part O compliance (England) and comfort cooling for higher-end projects. |
| Embodied carbon | R290 at a low charge | Meets more stringent regulations and client demands. No mitigation needed, so a cheaper install. |
| Minimum flow rate | Yes | Easier installation and design with smaller pipework. |
| Efficiency | Meets or exceeds competitors | A strong specification for client needs. |
| Sound levels | Meets or exceeds competitors | A strong specification for client needs. |
| Packaged system | Yes | Fewer ancillaries mean lower costs for product and installation. |
What QG changes for the installer, from first visit to service.
| USP | Competitive advantage | Impact on the installer's business |
|---|---|---|
| No extra ventilation installation required | R290 at 152 g per module means no costly, time-consuming ventilation installation or compliance work. | Highest margin and fastest installation: less total project time, complexity and liability. |
| Superior operating envelope, −20 to 80 °C | Strong replacement opportunities. Covers high-temperature, low-temperature and single-pipe systems, where competitors struggle. | Maximum market capture: installers can replace old systems with confidence, without a system redesign. |
| Pre-plumbed, plug-and-play | Integrated expansion vessel and factory-installed safety equipment. | Fastest commissioning in the premium class: less on-site labour and less dependency on specialist skills. |
| Modular redundancy | A single compressor module can serve as a spare part. | Less service call complexity, travel time and inventory cost for installers. |
| QService, a unique remote service | Installers get a clear overview of all their installations and can adjust system settings remotely on a dedicated platform. | Service revenue and efficiency: fewer costly site visits, rapid remote troubleshooting and adjustment, maximum uptime. |
| Updates over the air | New features and improvements reach installed heat pumps automatically, and support and optimisation happen at a distance. | Fewer unnecessary service visits, and a customer whose heat pump gets better over time. |
| Digital installation guide | The free Qvantum App guides the installer through the installation step by step. | A simple installation, the same way every time. |
| Warranty registered in the app | The warranty is registered directly in the app at installation. | A quick, easy handover to the homeowner. |
Key figures for QG-7 and QG-14.
*Up to 63 °C without the internal immersion heater. Efficiency class A+++/A+++ for both product and system, average climate 35 °C/55 °C. Water heating A+. Hot water volume according to EN 16147 at 10 l/min and 10 °C incoming cold water. No safety device needs to be fitted. The datasheet and the installer and user manual are listed under Documents below.
Run a project through the calculation tool, and share the customer page with homeowners and installers.
