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
A low cost indoor heater for a two bathroom home where price matters more than a long warranty.
- 170,000 BTU/hHeating power
- 6.9 GPMMax flow
- 1 yearHeat exchanger warranty
Price checked October 31, 2026. As an Amazon Associate we earn from qualifying purchases.
- Indoor 170,000 BTU/h heater for about a third of a big brand price
- Amazon bundle includes an isolation valve kit for easier flushing
- Tempered glass front panel is easy to wipe clean
- Only a 1 year replacement warranty
- No published UEF, weight or minimum input
- Camplux recommends altitudes under 2,000 ft
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its fuel. How we rank explains each one.
Specifications
| Model number | CA686W |
|---|---|
| Heating | |
| Fuel | Gas |
| Gas type | Natural gas or propane |
| Gas input | 170,000 BTU/h |
| Max flow | 6.9 GPM |
| Condensing | No |
| Installation | |
| Venting | Indoor |
| Vent type | 3 in (2.95 in) vent pipe |
| Features | |
| Built-in recirculation | No |
| Wi-Fi | No |
| Heat exchanger warranty | 1 year |
Alternatives in this fuel
A premium whole home heater for buyers who want built in recirculation and top efficiency and can pay for it.
Amazon $2,346.08A budget condensing heater for natural gas homes that want PVC venting and lower gas bills, if you can live with an unclear warranty.
ThermoMate $1,099.99Compare
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