Camplux Climatech 7 CA686W
#14 in GasFull review
A low cost indoor heater for a two bathroom home where price matters more than a long warranty.
Amazon $629.12$629.12
The Camplux Climatech 7 CA686W is the better tankless water heater overall, rated 3.5 to 3.2. The Camplux Climatech 7 CA686W leads on heating power. The Eccotemp SmartHome SH22i costs $130.12 less ($499 vs $629.12).
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 Camplux Climatech 7 CA686W for heating power (170,000 BTU/h vs 140,000 BTU/h).
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 | Camplux Climatech 7 CA686W | Eccotemp SmartHome SH22i |
|---|---|---|
| Overall rating | 3.5/5 | 3.2/5 |
| Value 35% | 100 $3.70 per 1,000 BTU/h ($629.12, 170,000 BTU/h) | 100 $3.56 per 1,000 BTU/h ($499, 140,000 BTU/h) |
| Heating power 25% | 63 170,000 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% | 0 1-year heat exchanger warranty | 0 5-year heat exchanger warranty |
Specifications
| Camplux Climatech 7 CA686W | Eccotemp SmartHome SH22i | |
|---|---|---|
| Heating | ||
| Fuel | Gas | Gas |
| Gas type | Natural gas or propane | Natural gas or propane |
| Gas input | 170,000 BTU/h | 140,000 BTU/h |
| Max flow | 6.9 GPM | 6.8 GPM |
| Condensing | No | No |
| Installation | ||
| Venting | Indoor | Indoor |
| Vent type | 3 in (2.95 in) vent pipe | - |
| Features | ||
| Built-in recirculation | No | No |
| Wi-Fi | No | Yes |
| Heat exchanger warranty | 1 year | 5 years |
| Parts warranty | - | 2 years |