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Hearthstone Willoughby DVI HT

Hearthstone Willoughby DVI HT

Imagine your fireplace – the focal point of any room, where friends and family just naturally gather around – made even more efficient by adding a Willoughby Direct-Vent insert. Gas-fired and designed to fit perfectly into your fireplace, the Willoughby features a double heat exchanger that allows less heat up the chimney, more into your home. Adjust the flame height upwards, and the Willoughby will keep you warm and comfortable. Or, adjust it down – and enjoy a gentle warmth along with a beautiful flame display.


Heats up to Up to 1,500 sq. ft.
Burn Rate Range 20,000 – 32,000 BTUs/hr.
Steady State Efficiency 75– 87%
EnerGuide Rating 67.71%
Width 27-3/4″
Height 19-3/4″
Depth 16″
Flue Diameter Two 3″ co-linear
Flue Exit Top exit
Available for NG or LP Yes
Surround Size (Large) 32-3/8″H x 49-1/4″W
Surround Size (Small) 26-5/8″H x 42-5/8″W
Optional Blower Kit Included
Remote Control Compatible Yes
Built-In Three-way “On-Off-Thermostat” Switch Included
Wall Thermostat and Thermostat Wire Included
Actual Weight (lbs.) 185
Mobile Home Certified Yes
Programmable Thermostat Compatible Yes

Clearances (Minimum Clearance to Combustibles)

Side N/a
Rear N/a
Corner N/a

Minimum fireplace opening

Width 28-1/2″
Height 20″
Depth 16-1/2″