Head to head
LG Therma V Monobloc S 9.00kW vs Viessmann Vitocal 150-A13
The LG Therma V Monobloc S 9.00kW is a r32 monobloc air source heat pump, 9.00 kw heat output. The Viessmann Vitocal 150-A13 is a r290 air source heat pump, 8.1 kw heat output.
Last reviewed 13 September 2026
Specifications side by side
| LG Therma V Monobloc S 9.00kW | Viessmann Vitocal 150-A13 | |
|---|---|---|
| Heat output | 9.00 kW at 7C/35C flow | 8.1 kW at A7/W35 |
| Refrigerant | R32, GWP 675 | R290 (propane), GWP 0.02 |
| Sound power | 61 dB(A) rated, 56 dB(A) low noise mode | 51 dB(A) assessed total at A7/W55 |
| Dimensions | 1239 x 1380 x 330 mm (H x W x D) | 920 x 450 x 360 mm (H x W x D) (indoor unit); 841 x 1144 x 600 mm (H x W x D, single fan) (outdoor unit) |
| Weight | 90.0 kg | 162 kg (single fan) (outdoor unit) |
| Max flow temperature | 65C | 70C down to -10C outdoor |
| SCOP | 4.55 (average climate, 35C flow) | - |
| COP | - | 4.7-5.0 at A7/W35 |
Sources: LG Therma V Monobloc S 9.00kW, Viessmann Vitocal 150-A13. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Therma V Monobloc S 9.00kW if...
An LG Therma V Monobloc S rated at 9.00kW, using R32 refrigerant and reaching a 65C flow. A low noise mode drops the sound power to 56 dB(A), useful where the outdoor unit sits close to a boundary or window.
Full Therma V Monobloc S 9.00kW specifications →Buy or hire the Vitocal 150-A13 if...
A Vitocal 150-A monobloc-style split heat pump using the natural refrigerant R290, rated at 8.1kW and reaching a 70C flow for boiler-replacement work. Viessmann-trained installers can extend the standard warranty on registration.
Full Vitocal 150-A13 specifications →Common questions
What is the difference between the LG Therma V Monobloc S 9.00kW and the Viessmann Vitocal 150-A13?
The LG Therma V Monobloc S 9.00kW is a r32 monobloc air source heat pump, 9.00 kW heat output; the Viessmann Vitocal 150-A13 is a r290 air source heat pump, 8.1 kW heat output.
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