Duluth Forge DF450SS-G-REM Gas Fireplace Insert: 24,000 BTU/h

What you get

The Duluth Forge DF450SS-G-REM Gas Fireplace Insert is a gas insert rated by its maker at 24,000 BTU per hour.

At full fire it burns about 23 cubic feet of natural gas an hour (its 24,000 BTU/h divided by EIA's heat content for each fuel).

As a vented unit it sends its exhaust outside through the vent system its manual lists, so it leaves room air alone; the vent route has to suit the house.

Fuel, per the listing: Natural Gas. Never connect a gas heater to a fuel it isn't set for.

Also on the listing: overall dimensions of 13 in (D) x 26 in (W) x 21 in (H), a shipping or unit weight of 10 lb and stainless steel construction.

The figures, from the maker

Each figure is the maker's or the listing's own, with its source marked. A figure the maker doesn't give is shown as not stated.

Model number	DF450SS-G-REM	Retailer
Power	propane	Retailer
Dimensions (seller)	13"D x 26"W x 21"H	Retailer
Material	Stainless Steel	Retailer
Mounting / installation	Wall Mount	Retailer
Heat output (maker)	24,000 BTU/h	Retailer
Features (seller)	Corded	Retailer
Batteries	1 AAA batteries required.	Retailer
Product weight	10 lb	Retailer
Model name	DF450SS-G-REM	Retailer
Venting	Ventless	Retailer
Fuel	Natural Gas	Retailer

Is it the right heater for the room?

Pick it when

Clean-venting room heat
Homes with gas or propane

Pass on it when

Homes without a vent route
Homes without gas or propane

Where it wins, where it gives ground

Wins

24,000 BTU/h
Exhaust vented outside
Natural Gas

Gives ground

Needs a vent route
Needs a gas line

Know before you install

Figures are the maker's own and are rated in the maker's conditions. Installation, venting, chimney, gas and electrical work follow the manual and local code, carried out by a qualified installer.

Heaters to weigh against it

Duluth Forge FDF400T-ZC-R Gas Fireplace InsertHeats up to 1,500 sq ft.

ProCom PCS150T Gas Fireplace InsertHeats up to 800 sq ft.

Duluth Forge FLF300T Gas Fireplace InsertHeats up to 1,350 sq ft.

Other gas stoves, fireplaces and inserts in the same heat range

Every gas stoves, fireplaces and inserts on one chart · All Duluth Forge models listed

Buying this model

The button opens this exact model's listing. Prices and stock change, and installation parts are usually sold separately; check the box contents and the manual's venting list before you order.

Prices change often; the button shows today's price.

Check price on Amazon

Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure

Questions about this model

How much gas does the Duluth Forge DF450SS-G-REM Gas Fireplace Insert use?

At full fire, about 23 cubic feet of natural gas an hour, from its 24,000 BTU/h rating and EIA's heat contents; lower settings use less.

Does the Duluth Forge DF450SS-G-REM Gas Fireplace Insert need a vent or chimney?

Yes: it vents outside through the system its manual lists.

Bottom line

Pick it for clean-venting room heat.