For a mid sized room, finished basement or sunroom where you want set-and-forget thermostat control. Buyers who need heat without power should look at a millivolt furnace instead.
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
Every Rinnai EX Energysaver model we rank, smallest first. Ratings compare each against its own venting.
| Model | Output | Rating | Price |
|---|---|---|---|
| Rinnai EnergySaver EX08DTN | 8,000 BTU/hr | 3.4/5 | $1,401.75 |
| Rinnai EnergySaver EX11DTN (this one) | 11,000 BTU/hr | 3.5/5 | $1,677.06 |
| Rinnai EnergySaver EX17DTN | 16,700 BTU/hr | 3.7/5 | $2,005.92 |
| Rinnai EnergySaver EX22DTN | 21,500 BTU/hr | 3.9/5 | $2,218.86 |
| Rinnai EnergySaver EX38DTN | 38,400 BTU/hr | 4.4/5 | $2,642.22 |
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its venting. How we rank explains each one.
| Model number | EX11DTN |
|---|---|
| Heat | |
| Venting | Direct vent |
| Heat type | Furnace |
| Maximum input | 11,000 BTU/hr |
| Minimum input | 5,500 BTU/hr |
| Efficiency | 81% AFUE |
| Fuel and controls | |
| Fuel | Natural gas |
| Thermostat | Yes |
| Blower | Yes |
| Ignition | Electronic (120 V) |
| Needs an outlet | Yes |
| Build | |
| Weight | 42 lb |
| Warranty | 5 years |
The pick of the Rinnai range for a large living area or small cabin that wants quiet, even heat with real thermostat control. Pair it with a backup if outages are common.
Amazon $2,218.86For a large room or small home zone that needs steady, thermostat controlled heat. The EX22DTN is worth the small step up if the space is borderline.
Amazon $2,005.92For a bedroom, office or small addition where steady, quiet, thermostat controlled heat matters more than purchase price. Skip it if you need heat through power outages.
Amazon $1,401.75Compare the Rinnai EnergySaver EX11DTN with any other gas wall heater →
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