Camplux WA686M
#11 in GasFull review
A bargain outdoor whole home heater for mild climates, best for buyers comfortable with a short warranty.
Amazon $559.99 Amazon $599.99$559.99
The Camplux WA686M is the better tankless water heater overall, rated 3.9 to 3.8. The Camplux WA686M leads on value and heating power. The Rinnai Sensei RX160i wins on warranty. The Camplux WA686M costs $738.44 less ($559.99 vs $1,298.43).
Rinnai Sensei RX160i
#12 in GasFull review
A very efficient heater for a two bathroom home that does not need the full 199,000 BTU/h of the RX199i.
Amazon $1,298.43$1,298.43
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 WA686M for value ($2.81 per 1,000 BTU/h ($559.99, 199,000 BTU/h) vs $8.12 per 1,000 BTU/h ($1,298.43, 160,000 BTU/h)) and heating power (199,000 BTU/h vs 160,000 BTU/h).
- Choose the Rinnai Sensei RX160i for warranty (15-year heat exchanger warranty vs 1-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 | Camplux WA686M | Rinnai Sensei RX160i |
|---|---|---|
| Overall rating | 3.9/5 | 3.8/5 |
| Value 35% | 100 $2.81 per 1,000 BTU/h ($559.99, 199,000 BTU/h) | 36 $8.12 per 1,000 BTU/h ($1,298.43, 160,000 BTU/h) |
| Heating power 25% | 100 199,000 BTU/h | 51 160,000 BTU/h |
| Efficiency 15% | 50 UEF not published (neutral score used) | 100 0.97 UEF |
| Warranty 25% | 0 1-year heat exchanger warranty | 100 15-year heat exchanger warranty |
Specifications
| Camplux WA686M | Rinnai Sensei RX160i | |
|---|---|---|
| Heating | ||
| Fuel | Gas | Gas |
| Gas type | Natural gas or propane | Natural gas or propane |
| Gas input | 199,000 BTU/h | 15,000 to 160,000 BTU/h |
| Max flow | 8.4 GPM | 9 GPM |
| UEF | - | 0.97 |
| Condensing | No | Yes |
| ENERGY STAR | - | Yes |
| Installation | ||
| Venting | Outdoor | Both |
| Vent type | - | 2 in or 3 in PVC/CPVC/PP, or concentric |
| Weight | - | 54 lb |
| Features | ||
| Built-in recirculation | No | No |
| Wi-Fi | No | No |
| Heat exchanger warranty | 1 year | 15 years |
| Parts warranty | 1 year | 5 years |