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564 High Output 864 High Output
564 High Output
Heating Capacity: Up to 1,400 Sq. Feet
Efficiency: 78.1%(NG), 79.69%(LP)
Weight: 165 Lbs.
Venting: Top
Glass Area: 30″W x 16 3/4″H
864 High Output
Heating Capacity: Up to 2,500 Sq. Feet
Efficiency: 82.13%(NG), 72.22%(LP)
Weight: 394 Lbs.
Venting: 45″ Top or Rear
Glass Area: 34 1/2″W x 22 1/4″H


For a quality gas fireplace you can enjoy for years to come, see our selection from Avalon.

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I found myself in Tri-County Hearth & Patio when I was shopping around for outdoor furniture for my new pool and was amazed at the selection and quality of the merchandise. Plenty of displays helped me with deciding what I wanted for my home and the sales staff was more than willing to take the time to help me and make sure I get exactly what I was looking for. I had my furniture in no time and when it was delivered they assembled it on location and placed the furniture exactly where I wanted it. Overall a wonderful experience!
~ Susan Timmons, La Plata, MD

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Tri-County Hearth & Patio Center | 2475 Old Washington Road Waldorf, Maryland 20601