EcoSmart ECOS 27
#7 in ElectricFull review
A low cost whole home heater for a two bathroom house in a warm climate. The short warranty is the tradeoff for the price.
Amazon $549$549
The EcoSmart ECOS 27 rates 3.3 among electric tankless water heaters; the Eccotemp SmartHome SH22i rates 3.2 among gas ones. The Eccotemp SmartHome SH22i costs $50 less ($499 vs $549).
Eccotemp SmartHome SH22i
#18 in GasFull review
An affordable smart heater for a small home that wants app control without paying for a premium brand.
Amazon $499 Amazon $499$499
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 (electric and gas), 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 weight | EcoSmart ECOS 27 | Eccotemp SmartHome SH22i |
|---|---|---|
| Overall rating | 3.3/5 | 3.2/5 |
| Value 35% | 60 $20.33 per kW ($549, 27 kW) | 100 $3.56 per 1,000 BTU/h ($499, 140,000 BTU/h) |
| Heating power 25% | 64 27 kW | 25 140,000 BTU/h |
| Efficiency 15% | 50 0.94 UEF | 50 UEF not published (neutral score used) |
| Warranty 25% | 29 5-year heat exchanger warranty | 0 5-year heat exchanger warranty |
Specifications
| EcoSmart ECOS 27 | Eccotemp SmartHome SH22i | |
|---|---|---|
| Heating | ||
| Fuel | Electric | Gas |
| Gas type | - | Natural gas or propane |
| Gas input | - | 140,000 BTU/h |
| Electric power | 27 kW | - |
| Max flow | 6.6 GPM | 6.8 GPM |
| UEF | 0.94 | - |
| Condensing | - | No |
| Installation | ||
| Venting | - | Indoor |
| Voltage | 240 V | - |
| Breakers | 120 A total | - |
| Weight | 10.9 lb | - |
| Features | ||
| Built-in recirculation | No | No |
| Wi-Fi | No | Yes |
| Heat exchanger warranty | 5 years | 5 years |
| Parts warranty | 1 year | 2 years |