Head to head
Viessmann Vitocal 150-A06 vs Viessmann Vitocal 150-A13
The Viessmann Vitocal 150-A06 is a r290 air source heat pump, 4.8 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
| Viessmann Vitocal 150-A06 | Viessmann Vitocal 150-A13 | |
|---|---|---|
| Heat output | 4.8 kW at A7/W35 | 8.1 kW at A7/W35 |
| COP | 4.7-5.0 at A7/W35 | 4.7-5.0 at A7/W35 |
| Refrigerant | R290 (propane), GWP 0.02 | R290 (propane), GWP 0.02 |
| Sound power | 51 dB(A) assessed total at A7/W55 | 51 dB(A) assessed total at A7/W55 |
| Dimensions | 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) | 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 | 162 kg (single fan) (outdoor unit) | 162 kg (single fan) (outdoor unit) |
| Max flow temperature | 70C down to -10C outdoor | 70C down to -10C outdoor |
Sources: Viessmann Vitocal 150-A06, Viessmann Vitocal 150-A13. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Vitocal 150-A06 if...
A Vitocal 150-A monobloc-style split heat pump using the natural refrigerant R290, rated at 4.8kW and reaching a 70C flow for boiler-replacement work. Viessmann-trained installers can extend the standard warranty on registration.
Full Vitocal 150-A06 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 Viessmann Vitocal 150-A06 and the Viessmann Vitocal 150-A13?
The Viessmann Vitocal 150-A06 is a r290 air source heat pump, 4.8 kW heat output; the Viessmann Vitocal 150-A13 is a r290 air source heat pump, 8.1 kW heat output.
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