Camplux Climatech 7 CA686W vs EcoSmart ECOS 27

Last updated: October 31, 2026

The Camplux Climatech 7 CA686W rates 3.5 among gas tankless water heaters; the EcoSmart ECOS 27 rates 3.3 among electric ones. The EcoSmart ECOS 27 costs $80.12 less ($549 vs $629.12).

Camplux Climatech 7 CA686W vs EcoSmart ECOS 27

Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.

Scores side by side

These two sit in different fuel classes (gas and electric), and each is scored against the reference points for its own class, so a rating says how well each does among its own fuel peers. How we rank explains each factor.

Factor weightCamplux Climatech 7 CA686WEcoSmart ECOS 27
Overall rating3.5/53.3/5
Value 35%100 $3.70 per 1,000 BTU/h ($629.12, 170,000 BTU/h)60 $20.33 per kW ($549, 27 kW)
Heating power 25%63 170,000 BTU/h64 27 kW
Efficiency 15%50 UEF not published (neutral score used)50 0.94 UEF
Warranty 25%0 1-year heat exchanger warranty29 5-year heat exchanger warranty

Specifications

Camplux Climatech 7 CA686WEcoSmart ECOS 27
Heating
FuelGasElectric
Gas typeNatural gas or propane-
Gas input170,000 BTU/h-
Electric power-27 kW
Max flow6.9 GPM6.6 GPM
UEF-0.94
CondensingNo-
Installation
VentingIndoor-
Vent type3 in (2.95 in) vent pipe-
Voltage-240 V
Breakers-120 A total
Weight-10.9 lb
Features
Built-in recirculationNoNo
Wi-FiNoNo
Heat exchanger warranty1 year5 years
Parts warranty-1 year

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