Ashley Hearth DVAG25-DF Dual Fuel
#7 in Direct ventFull review
For a cabin, garage apartment or open living area that needs a lot of heat without power, especially if you might switch between propane and natural gas.
Amazon $899.99$899.99
The Ashley Hearth DVAG25-DF Dual Fuel is the better gas wall heater overall, rated 3.2 to 3.0. The Ashley Hearth DVAG25-DF Dual Fuel leads on value and fuel. The Empire DV35 Direct Vent Wall Furnace wins on heat output. The Ashley Hearth DVAG25-DF Dual Fuel costs $1,109 less ($899.99 vs $2,008.99).
Empire DV35 Direct Vent Wall Furnace
#8 in Direct ventFull review
For a cabin or large room that needs serious heat that keeps running when the power goes out. Rinnai’s modulating units are steadier but quit without electricity.
Amazon $2,008.99$2,008.99
Prices 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.
Which should you buy?
- Choose the Ashley Hearth DVAG25-DF Dual Fuel for value ($36 per 1,000 BTU ($899.99, 25,000 BTU) vs $57.40 per 1,000 BTU ($2,008.99, 35,000 BTU)) and fuel (runs on propane or natural gas vs propane only).
- Choose the Empire DV35 Direct Vent Wall Furnace for heat output (35,000 BTU/hr vs 25,000 BTU/hr).
Scores side by side
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 | Ashley Hearth DVAG25-DF Dual Fuel | Empire DV35 Direct Vent Wall Furnace |
|---|---|---|
| Overall rating | 3.2/5 | 3.0/5 |
| Value 30% | 91 $36 per 1,000 BTU ($899.99, 25,000 BTU) | 69 $57.40 per 1,000 BTU ($2,008.99, 35,000 BTU) |
| Heat output 15% | 50 25,000 BTU/hr | 83 35,000 BTU/hr |
| Controls 20% | 50 thermostat | 50 thermostat |
| Fuel 5% | 100 runs on propane or natural gas | 0 propane only |
| Warranty 30% | 0 1-year warranty | 0 1-year warranty |
Specifications
| Ashley Hearth DVAG25-DF Dual Fuel | Empire DV35 Direct Vent Wall Furnace | |
|---|---|---|
| Heat | ||
| Venting | Direct vent | Direct vent |
| Heat type | Furnace | Furnace |
| Maximum input | 25,000 BTU/hr | 35,000 BTU/hr |
| Heating area claim | 825 sq ft | - |
| Fuel and controls | ||
| Fuel | Dual fuel | Propane |
| Thermostat | Yes | Yes |
| Blower | No | No |
| Ignition | Push button | Push button |
| Needs an outlet | No | No |
| Build | ||
| Weight | 62.2 lb | - |
| Warranty | 1 year | 1 year |