Harman Advance
Not only does the Harman Advance provide automatic temperature regulation, the stove will automatically
adjust itself for fuel quality as well. An Exhaust-Sensing Probe is engineered into the stove that analyzes the output of the fuel being burned and adjusts the feed rate accordingly to compensate for differences in pellet fuel quality.
The Advance uses a heat exchanger in the shape of an accordion to create a large amount of surface area to be
placed in a small area, greatly increasing heat transfer efficiency in small areas. The stove’s hopper capacity is 60 lbs. and it will burn from 3/4 lb./hr to 6 lbs./hr at its maximum setting.
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- Lopi Liberty Review & ratings - Mar 14, 2010



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My stove heats up my 2300 sq. ft, 2 story home easily. I have an open floor plan and the heat just travels throughout my home. I just purchased another stove for my garage and I wish I had done this alot sooner rather than pay over $4000 a year on propane heat.Overall Performance:
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I use the stove as supplemental heat. It controls itself and maintains a constant tempature. The advance is stylish and easy to maintain. Only one small drawback is that I have to open both side panels in order to open the front window/door.Overall Performance:
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Easy to use, dealer support very poor, I have had $300 in replaced parts in two years, and no warranty coverege. Two Ignitors, two chimminey sensors, and one thermostat. Dealer in Billings would not respond to warranty claims.Overall Performance:
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I live in Queens, New York. Formally, pellet stoves are not approved for use in five borough. But being fed up with monopoly of local gas company I decided to buy a pellet stove anyway. I was looking for a stove which would start with the least amount of smoke, not to alarm watchfull neighbors. My wife demanded a three-D window. So after a long search we settled on "Harman Advance." I ...Overall Performance:
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I have had more problems with my Harmon Advance automatic ignition. Once again it is not working and I have already replaced it 2 times in 5 years. It is very frustrating when I was told last year that they had worked the kinks out with them. I clean my stove every 3 weeks Has anyone else had these issues? HELPOverall Performance:
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Lots of problems with this stove. Every year something new. Out of warranty now so all on me. Problem with chain falling off, broke the gears of feed mechanism, sensor went bad, feed motor bad, go through a lot of pellets (~2 bags per day even on warm days). Does make room warm however. Paid premium, very loud, clean it every two weeks, once a month total cleaning including flue.Overall Performance:
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I also have a Harmon Advance....the dealer that we bought our stove from is terrible....our first stove made this ungodly squeal and they replaced the stove with a new one.Our second stove is no better than our first. When they installed our stove the grill came off as soon as they left our driveway. They had to come and grind the grill....now the grill is crooked.The stove makes a noise now ...Overall Performance:
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I have the advance model. wanted the p 68 but th edealer talked me out of it (too much heat for our 3000 sq ft rancher) he was right. our advance is great. much kudos to rettinger in NJ. Burns 24/7 needs cleaning every 2 weeks. takes about 45 mins to clean. burn about 6 tons a season as primary heat. our other heat is propane and we really don't use it at all due to high cost. Stove was about ...Overall Performance:
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We have the Harman Advanced model. we are experiencing the flame seems sluggish, is burning very rich and seems to burn with more smoke like the air is being choked. The glass turns black from smoke. We have tried different kinds of pellets and have been cleaning the unit every three to four days.We use it for our primary heat with propane as our backup. Was wondering if anyone had any input on ...Overall Performance:
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Bought a 6-year old Harman Advance Stove.Using in my shop that is 1,500sf.
Burning Lowes Curan pellets.
Temps in North Jersey have been from low teens at night to mid 30’s at day since installed.
Using 1.75 thru 2.25 bags per day.
I am completely impressed & sold on these pellet stoves.
Did my research & think made the right choice of stove.