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ENERGIE ECO 500 IS vs HGB-Trading HH-300TB2

Water heating efficiency ηwh: ENERGIE ECO 500 IS 132 %, HGB-Trading HH-300TB2 148 %. The HGB-Trading HH-300TB2 is better on 6 of 7 comparable points.

Last updated: 13 October 2026+ Add a model

Who wins where

Fact	ECO 500 IS	HH-300TB2
ηwh, colder climate	118 %	148 %
Annual electricity use, colder climate	1,823 kWh	1,459 kWh
Annual electricity use (average climate)	1,667 kWh	1,389 kWh
Water heating efficiency ηwh	132 %	148 %
ηwh, warmer climate	139 %	148 %
Annual electricity use, warmer climate	1,553 kWh	1,459 kWh

Score per area = position (0–100) relative to all 450 models in this category; higher is better.

Technical specifications	ENERGIEECO 500 IS	HGB-TradingHH-300TB2
General
Load profile	XXL¹	XXL²
Efficiency
Water heating efficiency ηwh	132 %¹	148 %✓²
ηwh, colder climate	118 %¹	148 %✓²
ηwh, warmer climate	139 %¹	148 %✓²
Energy label	A+¹	A+²
Annual electricity use (average climate)	1,667 kWh¹	1,389 kWh✓²
Annual electricity use, colder climate	1,823 kWh¹	1,459 kWh✓²
Annual electricity use, warmer climate	1,553 kWh¹	1,459 kWh✓²
Noise
Indoor sound power	47 dB(A)✓¹	48 dB(A)²

Water heating efficiency ηwh: ENERGIE ECO 500 IS 132 %, HGB-Trading HH-300TB2 148 %. The HGB-Trading HH-300TB2 is better on 6 of 7 comparable points.

ENERGIE ECO 500 IS: 132 %. HGB-Trading HH-300TB2: 148 %.

HGB-Trading HH-300TB2: 148 %. ENERGIE ECO 500 IS: 118 %.

HGB-Trading HH-300TB2: 1,459 kWh. ENERGIE ECO 500 IS: 1,823 kWh.