Heat pumps · MT

HovalUltraSource T comfort (17) (Wasser / Wasser)

The Hoval UltraSource T comfort (17) (Wasser / Wasser) is a heat pump with SCOP (35 °C) 7.96 and refrigerant R410A.¹

Last updated: 28 September 2026 Technical specifications ⇄ Compare this model

SCOP (35 °C): 7.96¹

Seasonal efficiency: how much heat you get per kWh of electricity across a heating season.
Refrigerant: R410A¹

Official source
Type (source): Water-to-water¹

Official source
Rated output 35 °C: 21.6kW¹

Official source
Rated output 55 °C: 25.7kW¹

Official source

Technical specifications

General
Type (source)	Water-to-water¹
Compressors	1¹
Capacity control	drehzahlregelung¹
Performance
Rated output 35 °C	21.6 kW¹
Rated output 55 °C	25.7 kW¹
Efficiency
SCOP (35 °C)	7.96¹
SCOP (55 °C)	5.85¹
Seasonal efficiency ηs 35 °C	311 %¹
Seasonal efficiency ηs 55 °C	226 %¹
Noise
Indoor unit sound power	44 dB(A)¹
Refrigerant
Refrigerant	R410A¹
Refrigerant charge	3.4 kg¹
Electrical
Max. power input	9.73 kW¹
Connectivity & smart
SG Ready	Yes¹

Manufacturer documentation

Brochure / leaflet — Hoval UltraSource T – Prospekt (cdn.hoval.com, PDF)

External links to Hoval's official website. The manufacturer may change or move documents; where they differ, the manufacturer's latest version applies.

Frequently asked questions

What is the SCOP (35 °C) of the Hoval UltraSource T comfort (17) (Wasser / Wasser)?

The SCOP (35 °C) of the Hoval UltraSource T comfort (17) (Wasser / Wasser) is 7.96.¹

Which refrigerant does the Hoval UltraSource T comfort (17) (Wasser / Wasser) use?

The refrigerant of the Hoval UltraSource T comfort (17) (Wasser / Wasser) is R410A.¹

Sources

List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed 28 Sept 2026

Key figures