Tankless Water Heaters: Top 3 Compared — Ranked Lab
#1
Takagi T-H3-DV-N Natural Gas Water Heater
~$899
★★★★ 4.6/5
9.0/10 avg
#2
Stiebel Eltron Tempra 29 Plus Electric Tankless Water Heater
~$699
★★★★ 4.5/5
8.8/10 avg
#3
EcoSmart ECO 27 Electric Tankless Water Heater
~$449
★★★★ 4.3/5
8.4/10 avg

Takagi T-H3-DV-N Natural Gas Water Heater vs Stiebel Eltron Tempra 29 Plus Electric Tankless Water Heater vs EcoSmart ECO 27 Electric Tankless Water Heater

MetricHeaterHeaterHeater
Quality9.4/10 Best
9.2/10
8.8/10
Features9.1/10 Best
8.9/10
8.5/10
Ease of Use8.9/10 Best
8.7/10
8.3/10
Value8.7/10 Best
8.5/10
8.1/10
Price~$899~$699~$449
Rating4.6/54.5/54.3/5

Score Breakdown

Quality
Heater
9.4
Heater
9.2
Heater
8.8
Features
Heater
9.1
Heater
8.9
Heater
8.5
Ease of Use
Heater
8.9
Heater
8.7
Heater
8.3
Value
Heater
8.7
Heater
8.5
Heater
8.1

Strengths & Weaknesses

Takagi T-H3-DV-N Natural Gas Water Heater
Strength

Strongest in quality with 9.4/10

Takagi T-H3-DV-N Natural Gas Water Heater
Watch Out

Trails in value at 8.7/10

Stiebel Eltron Tempra 29 Plus Electric Tankless Water Heater
Strength

Strongest in quality with 9.2/10

Stiebel Eltron Tempra 29 Plus Electric Tankless Water Heater
Watch Out

Trails in value at 8.5/10

EcoSmart ECO 27 Electric Tankless Water Heater
Strength

Strongest in quality with 8.8/10

EcoSmart ECO 27 Electric Tankless Water Heater
Watch Out

Trails in value at 8.1/10

Our Verdict
Takagi T-H3-DV-N Natural Gas Water Heater

If top-line performance matters most, the Takagi T-H3-DV-N Natural Gas Water Heater is the clear choice. For those on a tighter budget, the EcoSmart ECO 27 Electric Tankless Water Heater offers solid all-around performance at a lower price point.

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