Eccotemp 7GB Builder Grade
#3 in GasFull review
A strong value outdoor heater for a natural gas home in a mild climate, with a better warranty than most budget rivals.
Amazon $499$499
The Eccotemp 7GB Builder Grade is the better tankless water heater overall, rated 4.1 to 3.2. The Eccotemp 7GB Builder Grade leads on heating power and warranty.
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.
Which should you buy?
- Choose the Eccotemp 7GB Builder Grade for heating power (180,000 BTU/h vs 140,000 BTU/h) and warranty (10-year heat exchanger warranty vs 5-year heat exchanger warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every gas tankless water heater; a clear win is highlighted. How we rank explains each one.
| Factor weight | Eccotemp 7GB Builder Grade | Eccotemp SmartHome SH22i |
|---|---|---|
| Overall rating | 4.1/5 | 3.2/5 |
| Value 35% | 100 $2.77 per 1,000 BTU/h ($499, 180,000 BTU/h) | 100 $3.56 per 1,000 BTU/h ($499, 140,000 BTU/h) |
| Heating power 25% | 76 180,000 BTU/h | 25 140,000 BTU/h |
| Efficiency 15% | 50 UEF not published (neutral score used) | 50 UEF not published (neutral score used) |
| Warranty 25% | 50 10-year heat exchanger warranty | 0 5-year heat exchanger warranty |
Specifications
| Eccotemp 7GB Builder Grade | Eccotemp SmartHome SH22i | |
|---|---|---|
| Heating | ||
| Fuel | Gas | Gas |
| Gas type | Natural gas | Natural gas or propane |
| Gas input | 180,000 BTU/h | 140,000 BTU/h |
| Max flow | 7 GPM | 6.8 GPM |
| Condensing | No | No |
| Installation | ||
| Venting | Outdoor | Indoor |
| Features | ||
| Built-in recirculation | No | No |
| Wi-Fi | No | Yes |
| Heat exchanger warranty | 10 years | 5 years |
| Parts warranty | 5 years | 2 years |