I have installed them for 6 years, they are fantastic so long as they are installed correctly. If you dont like the look or want to setup the whole house to run on one they make styles that hook directly to you HVAC duct work. They are not easy to install but if you have patience and are willing to read alot of how to's online you can learn, be sure to check for codes within your local municipality, many city's have codes regulating what draft pipes to use and how they must be installed. Also some homeowners insurances will not cover damage as a result of the homeowner installing it incorrectly. I think overall they are awesome, the larger ones can heat 1600+ sf for 4$ a day.
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