A direct vent wall furnace is sealed from the room: it pulls combustion air from outside and sends the exhaust back out through a short pipe in the wall, so it can heat a bedroom or a whole small home without adding moisture or fumes to the air. It has to sit on an outside wall, costs more than a vent-free heater and often needs an outlet for its controls or blower, but it is allowed in places that ban vent-free heat.
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.
Full ranking 14
- Rinnai EnergySaver EX38DTN#1 of 14Full review
For a small home, cabin or open plan space that needs one wall unit as the main heat source with modern thermostat control. Owners in outage prone areas should plan a backup.
Amazon $2,642.22$2,642.2238,400 BTUNatural gasYes - Rinnai EnergySaver EX22DTN#2 of 14Full review
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 $2,218.86$2,218.8621,500 BTUNatural gasYes - Rinnai EnergySaver EX17DTN#3 of 14Full review
For 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 $2,005.92$2,005.9216,700 BTUNatural gasYes - Rinnai EnergySaver EX11DTN#4 of 14Full review
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.
Amazon $1,677.06$1,677.0611,000 BTUNatural gasYes - Rinnai EnergySaver EX08DTN#5 of 14Full review
For 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 $1,401.75$1,401.758,000 BTUNatural gasYes - Comfort Glow DVN17 Direct Vent Heater#6 of 14Full review
A strong value for heating a living room or small apartment on natural gas with automatic temperature control and no need for power.
Amazon $498$49817,000 BTUNatural gasYes - Ashley Hearth DVAG25-DF Dual Fuel#7 of 14Full 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$899.9925,000 BTUDual fuelYes - Empire DV35 Direct Vent Wall Furnace#8 of 14Full 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$2,008.9935,000 BTUPropaneYes - Ashley Hearth DVAG11L Direct Vent#9 of 14Full review
For a bedroom, cabin room or mobile home on propane that needs thermostat controlled heat with no power. The short warranty is the trade off for the low price.
Amazon $382.49$382.4911,000 BTUPropaneYes - Comfort Glow DVN08 Direct Vent Heater#10 of 14Full review
For a single small bedroom or bathroom on natural gas where a low price and heat during outages matter more than automatic control.
Amazon $283.06$283.068,000 BTUNatural gasNo - Williams 3003822 Direct Vent Furnace#11 of 14Full review
A strong value pick for heating a small home or cabin on natural gas with no power needed. Add the wall thermostat for automatic control.
HVACDirect $1,290$1,29030,000 BTUNatural gasNo - Williams 2203822 Direct Vent Furnace#12 of 14Full review
For a living area or small house on natural gas where heat during outages and a low price matter most. Budget for the thermostat and a licensed installer.
HVACDirect $1,149$1,14922,000 BTUNatural gasNo - Williams 1403822 Direct Vent Furnace#13 of 14Full review
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 $989$98914,000 BTUNatural gasNo - Empire DV215 Direct Vent Wall Furnace#14 of 14Full review
For 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 $1,499$1,49915,000 BTUPropaneNo
