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STIEBEL ELTRONHPG-I 12 (D)(C)S Premium

STIEBEL ELTRON HPG-I 12 (D)(C)S Premium
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The STIEBEL ELTRON HPG-I 12 (D)(C)S Premium is a heat pump with SCOP (35 °C) 5.59 and refrigerant R454C.1,2

Last updated: Technical specifications Rules in Ireland ⇄ Compare this model
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SCOP (35 °C)
5.592

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

Refrigerant
R454C2
Official source
Type (source)
Ground source2
Official source
Rated output 35 °C
12.03kW2
Official source
Rated output 55 °C
11.99kW2
Official source
IE

Rules in Ireland

SEAI Heat Pump System Grant

Check conditions

€14,5003Maximum for a house, incl. €2,000 boiler scrappage

Up to €14,500 for a house (€11,500 for an apartment), including a €2,000 boiler scrappage grant when an oil, gas, solid-fuel or storage-heater system is removed. Homes built before 2007 need a technical assessment (€200 grant) unless the BER shows a Heat Loss Indicator of 2.3 or less. Installation is charged at 9% VAT.4

  • The heat pump must be listed on SEAI's Home Appliance Register of Performance (HARP) and installed by an SEAI-registered contractor.
  • Home built and occupied before 2021, with an MPRN; grant approval before any work starts and a BER assessment afterwards.

Technical specifications

General
Type (source) Ground source2
Compressors 11
Capacity control drehzahlregelung1
Performance
Rated output 35 °C 12.03 kW2
Rated output 55 °C 11.99 kW2
Efficiency
SCOP (35 °C) 5.592
SCOP (55 °C) 4.422
Seasonal efficiency ηs 35 °C 216 %2
Seasonal efficiency ηs 55 °C 169 %2
Energy label 35 °C A, , , 2
Energy label 55 °C A, , , 2
Noise
Indoor unit sound power 39 dB(A)2
Refrigerant
Refrigerant R454C2
Refrigerant GWP 1482
Refrigerant charge 3.1 kg2
Electrical
Max. power input 5.59 kW1
Connectivity & smart
SG Ready Yes1

Variants

This model is registered in 7 combinations (for example with a different indoor unit or cylinder) with exactly the same performance. All figures on this page apply to each of these types. The part of the type number that differs is in bold; small differences (e.g. cylinder volume or anode) are listed after it:

  • HPG-I 12 (D)(C)S Premium
  • WPE-I 12 H 230 Premium
  • WPE-I 12 H(K)(W) 230 Premium
  • WPE-I 12 H(W) 230 GB Premium
  • WPE-I 12 HK 230 Premium
  • WPE-I 12 HKW 230 Premium
  • WPE-I 12 HW 230 Premium

Manufacturer documentation

External links to STIEBEL ELTRON'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 STIEBEL ELTRON HPG-I 12 (D)(C)S Premium?

The SCOP (35 °C) of the STIEBEL ELTRON HPG-I 12 (D)(C)S Premium is 5.59.1,2

Which refrigerant does the STIEBEL ELTRON HPG-I 12 (D)(C)S Premium use?

The refrigerant of the STIEBEL ELTRON HPG-I 12 (D)(C)S Premium is R454C.1,2

How much SEAI grant can you get for the STIEBEL ELTRON HPG-I 12 (D)(C)S Premium?

Up to €14,500 with the SEAI Heat Pump System Grant, including €2,000 boiler scrappage when an oil, gas, solid-fuel or storage-heater system is removed (€11,500 for an apartment). The home must be built and occupied before 2021, the heat pump must be on SEAI's HARP register and you need grant approval before work starts.1,2

Sources

  1. List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed 29 Sept 2026
  2. Heat Pump Keymark certificates — EHPA / DIN CERTCO (Heat Pump KEYMARK) · accessed 29 Sept 2026
  3. Heat Pump System Grants — SEAI · accessed 4 Oct 2026
  4. Heat pump heating system (VAT) — Revenue · accessed 4 Oct 2026