The Williams 1403822 Direct Vent Furnace is the better gas wall heater overall, rated 2.2 to 2.0. The Williams 1403822 Direct Vent Furnace leads on value. The Williams 1403822 Direct Vent Furnace costs $510 less ($989 vs $1,499).
For a small room or cabin on natural gas that needs heat through outages at the lowest price. Add the wall thermostat and expect higher gas bills than a sealed electronic unit.
Amazon $989For a bedroom or small room in an area with outages, where heat that runs with no power matters more than automatic temperature control. Budget for the wall thermostat.
Amazon $1,499Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Each factor is scored 0-100 against the same fixed reference points for every direct vent gas wall heater; a clear win is highlighted. How we rank explains each one.
| Factor weight | Williams 1403822 Direct Vent Furnace | Empire DV215 Direct Vent Wall Furnace |
|---|---|---|
| Overall rating | 2.2/5 | 2.0/5 |
| Value 30% | 60 $70.64 per 1,000 BTU ($989, 14,000 BTU) | 43 $99.93 per 1,000 BTU ($1,499, 15,000 BTU) |
| Heat output 15% | 13 14,000 BTU/hr | 17 15,000 BTU/hr |
| Controls 20% | 0 manual control, push button ignition | 0 manual control, push button ignition |
| Fuel 5% | 0 natural gas only | 0 propane only |
| Warranty 30% | 0 1-year warranty | 0 1-year warranty |
| Williams 1403822 Direct Vent Furnace | Empire DV215 Direct Vent Wall Furnace | |
|---|---|---|
| Heat | ||
| Venting | Direct vent | Direct vent |
| Heat type | Furnace | Furnace |
| Maximum input | 14,000 BTU/hr | 15,000 BTU/hr |
| Efficiency | 65% AFUE | - |
| Fuel and controls | ||
| Fuel | Natural gas | Propane |
| Thermostat | No | No |
| Blower | No | No |
| Ignition | Push button | Push button |
| Needs an outlet | No | No |
| Build | ||
| Warranty | 1 year | 1 year |
