From commercial HVAC to large-scale district heating, our heat pump systems deliver measurable decarbonization outcomes across six core sectors.
ThermaVerde air-source and water-source heat pumps replace legacy gas boilers in office complexes, hotels, shopping centers, and university campuses. Our inverter-driven systems modulate heating output from 20% to 100% capacity, matching real-time building load profiles and eliminating cycling losses.
Data centers produce enormous quantities of low-grade waste heat at 30-45 degrees Celsius. ThermaVerde heat recovery heat pumps capture this thermal energy and upgrade it to 65-80 degrees Celsius for district heating feed-in, domestic hot water, or adjacent building heating. Simultaneous free cooling and heat recovery maximizes total system efficiency.
HACCP-compatible heat pump systems for pasteurization, drying, cleaning-in-place (CIP) hot water generation, and process heating. R-744 transcritical units deliver hot water up to 90 degrees Celsius in a single stage, eliminating the need for supplementary gas boilers in many food processing applications.
Precision temperature control is non-negotiable in pharmaceutical production. ThermaVerde heat pumps maintain +/-0.5 degrees Celsius setpoint accuracy across cleanrooms, storage areas, and process zones. Fully redundant N+1 compressor configurations maintain continuous operation during single-unit maintenance or failure events, with automatic failover in under 30 seconds.
Large-scale water-source heat pumps extract thermal energy from rivers, wastewater treatment plants, geothermal wells, and industrial waste heat streams. ThermaVerde supplies modular heat pump units from 500 kW to 10 MW for integration into 4th-generation district heating networks operating at 55-70 degrees Celsius supply temperatures.
High-temperature industrial heat pumps deliver process heat at 80-120 degrees Celsius for drying, evaporation, distillation, and preheating applications. Using R-744 transcritical or R-1234ze cascade configurations, ThermaVerde systems achieve COP 3.0+ even at elevated output temperatures, replacing steam boilers in qualifying processes.
Choosing the right heat pump type depends on site conditions, available heat sources, and target output temperature. The following comparison outlines key selection dimensions.
| Selection Dimension | Air Source | Water Source | Ground Source |
|---|---|---|---|
| Typical COP Range | 3.5-5.2 (at A7/W35) | 4.5-5.8 (at W10/W35) | 4.8-6.0 (at B0/W35) |
| Installation Cost Index | Lowest — no borehole or water intake | Medium — requires water source access, filtration, and permitting | Highest — borehole drilling adds 30-50% to total project cost |
| Cold Climate Suitability | COP degrades below minus 10 degrees Celsius; EVI extends to minus 25 degrees Celsius with derating | Stable performance if water source stays above 5 degrees Celsius year-round | Most stable — ground temperature constant at 8-14 degrees Celsius below 10m depth |
| Space Requirement | Outdoor unit requires unobstructed airflow; rooftop or ground-level slab | Compact indoor unit; requires proximity to water source | Compact indoor unit; requires drilling area during installation |
| Maintenance Complexity | Annual condenser cleaning, defrost cycle inspection | Water strainer cleaning, heat exchanger descaling every 2-3 years | Minimal — closed glycol loop requires antifreeze check every 3-5 years |
| Ideal Application | Commercial buildings, retail, hotels — where simplicity and lower upfront cost matter most | District heating, coastal facilities, sites near rivers or wastewater plants | Hospitals, universities, long-lifecycle facilities where 25+ year COP stability justifies drilling investment |
Heat pump technology is highly effective within defined operating envelopes. Understanding these boundaries is essential for correct system specification.
Air-source heat pump COP drops as ambient temperature decreases. At minus 15 degrees Celsius, COP typically falls to 2.0-2.5 (from 4.5+ at 7 degrees Celsius). Below minus 20 degrees Celsius, supplementary heating may be required in some building types. Enhanced vapor injection (EVI) compressor technology extends the operating range to minus 25 degrees Celsius, but capacity derating of 30-40% applies at these extremes. Ground-source and water-source systems are less affected but require higher upfront investment in borehole drilling or water intake infrastructure.
Heat pumps are electrically driven, requiring substantially higher electrical capacity than gas boilers they replace. A 500 kW heat pump system draws approximately 120-140 kW electrical power at full load. Facilities switching from gas to heat pump heating frequently need electrical service upgrades — transformer upsizing, switchgear replacement, and cable capacity increases — which can add 10-20% to total project cost and 8-16 weeks to project timelines. Grid connection capacity must be verified with the local utility before committing to system sizing.
Standard heat pump systems deliver output temperatures up to 65 degrees Celsius efficiently. Above 80 degrees Celsius, COP drops below 3.0 and system complexity increases significantly — transcritical CO2 or cascade HFO configurations are required. For processes needing steam above 120 degrees Celsius, heat pumps currently serve only as preheating stages, not full replacements for boilers. The economic crossover point depends on local electricity-to-gas price ratios, typically favoring heat pumps when the ratio is below 3:1.
R-290 (propane) is classified A3 (flammable). EN 378 limits charge quantities based on room volume and occupancy — typical maximum charge for occupied spaces is 150 grams per circuit without additional safety measures. Larger systems require dedicated plant rooms, gas detection, and emergency ventilation. R-717 (ammonia) systems are restricted to machine rooms with emergency shower/eyewash stations. These safety requirements add 5-15% to installed cost and may preclude retrofit into existing mechanical rooms with limited space.