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Water Heater, Thermal Efficiency

helpWhat is the difference in the thermal efficiency of different types of water heaters?

Category: Instantaneous Water Heater
General
Importance: star_ratestar_ratestar_ratestar_ratestar_rate
Difficulty: star_ratestar_ratestar_ratestar_ratestar_rate
Answer:
Single-phase and three-phase power instantaneous electric water heaters have a thermal efficiency of around 98%; storage and Rapid Fast Flow water heaters have a thermal efficiency of around 95%; gas water heaters have a thermal efficiency of around 80%.

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