versusindex
IE
Heat pumps · Compare

ELCO AEROTOP SPK7 vs Viessmann Vitocal 150-A IDU-A Hybrid HWMIW.A1.19-V054 / ODU 150-A AWMOF-151.A1.06-230-V002

SCOP (35 °C): ELCO AEROTOP SPK7 4.92, Viessmann Vitocal 150-A IDU-A Hybrid HWMIW.A1.19-V054 / ODU 150-A AWMOF-151.A1.06-230-V002 4.58. The ELCO AEROTOP SPK7 is better on 8 of 16 comparable points.

Last updated: + Add a model

Who wins where

  • ELCO AEROTOP SPK7
  • Viessmann Vitocal 150-A IDU-A Hybrid HWMIW.A1.19-V054 / ODU 150-A AWMOF-151.A1.06-230-V002
PerformanceEfficiencyNoiseRefrigerantConnectivity & smart

Biggest differences

FactAEROTOP SPK7Vitocal 150-A IDU-A Hybrid HWMIW.A1.19-V054 / ODU 150-A AWMOF-151.A1.06-230-V002
Refrigerant charge3.1 kg1.2 kg
Indoor unit sound power32 dB(A)40 dB(A)
Rated output 55 °C5.93 kW5.14 kW
Min. outdoor temperature-22 °C-20 °C
COP A-7/W352.733
Seasonal efficiency ηs 35 °C194 %180 %
All specifications ↓

Score per area = position (0–100) relative to all 1350 models in this category; higher is better.

ELCOAEROTOP SPK7ViessmannVitocal 150-A IDU-A Hybrid HWMIW.A1.19-V054 / ODU 150-A AWMOF-151.A1.06-230-V002
Grants & market
SEAI Heat Pump System Grant€14,500–
General
Type (source)Air-to-water1Air-to-water1
System–Hybrid (with gas boiler)1
Performance
Heating capacity (A7/W35)4.5 kW24.8 kW✓3
Rated output 35 °C5.59 kW✓15.46 kW1
Rated output 55 °C5.93 kW✓15.14 kW1
Min. outdoor temperature-22 °C✓2-20 °C3
Efficiency
SCOP (35 °C)4.92✓14.581
SCOP (55 °C)3.78✓13.61
Seasonal efficiency ηs 35 °C194 %✓1180 %1
Seasonal efficiency ηs 55 °C148 %✓1141 %1
Energy label 35 °CA+++2A+++3
Energy label 55 °CA++2A++3
COP A7/W355.4715.5✓1
COP A2/W354.5414.6✓1
COP A-7/W352.7313✓1
Noise
Outdoor unit sound power52 dB(A)151 dB(A)✓1
Indoor unit sound power32 dB(A)✓140 dB(A)1
Refrigerant
RefrigerantR2901R2901
Refrigerant GWP3233
Refrigerant charge3.1 kg11.2 kg✓1
Electrical
Max. power input4.8 kW10.98 kW1
Connectivity & smart
SG ReadyYes1Yes1

Frequently asked questions

Which is better: the ELCO AEROTOP SPK7 or the Viessmann Vitocal 150-A IDU-A Hybrid HWMIW.A1.19-V054 / ODU 150-A AWMOF-151.A1.06-230-V002?

SCOP (35 °C): ELCO AEROTOP SPK7 4.92, Viessmann Vitocal 150-A IDU-A Hybrid HWMIW.A1.19-V054 / ODU 150-A AWMOF-151.A1.06-230-V002 4.58. The ELCO AEROTOP SPK7 is better on 8 of 16 comparable points.

What is the SCOP (35 °C) of the ELCO AEROTOP SPK7 and the Viessmann Vitocal 150-A IDU-A Hybrid HWMIW.A1.19-V054 / ODU 150-A AWMOF-151.A1.06-230-V002?

ELCO AEROTOP SPK7: 4.92. Viessmann Vitocal 150-A IDU-A Hybrid HWMIW.A1.19-V054 / ODU 150-A AWMOF-151.A1.06-230-V002: 4.58.

Which is better on refrigerant charge: the ELCO AEROTOP SPK7 or the Viessmann Vitocal 150-A IDU-A Hybrid HWMIW.A1.19-V054 / ODU 150-A AWMOF-151.A1.06-230-V002?

Viessmann Vitocal 150-A IDU-A Hybrid HWMIW.A1.19-V054 / ODU 150-A AWMOF-151.A1.06-230-V002: 1.2 kg. ELCO AEROTOP SPK7: 3.1 kg.

Which is better on indoor unit sound power: the ELCO AEROTOP SPK7 or the Viessmann Vitocal 150-A IDU-A Hybrid HWMIW.A1.19-V054 / ODU 150-A AWMOF-151.A1.06-230-V002?

ELCO AEROTOP SPK7: 32 dB(A). Viessmann Vitocal 150-A IDU-A Hybrid HWMIW.A1.19-V054 / ODU 150-A AWMOF-151.A1.06-230-V002: 40 dB(A).

How we collect and check this data →

Sources

  1. List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed 27 Sept 2026
  2. Heat Pump Keymark certificates — EHPA / DIN CERTCO (Heat Pump KEYMARK) · accessed 29 Sept 2026
  3. Heat Pump Keymark certificates — EHPA / DIN CERTCO (Heat Pump KEYMARK) · accessed 29 Sept 2026