I have installed well over a hundred of them, as Chris said, I have had two that the plungers jammed and melted the coil, three that the plunger jamed on, but was able to free. Watch for gas pressure and volume issues on natural gas, about 20% of the installs we had to upgrade to a 5# meter and install regulaters everywhere, expensive. With LP, install a two stage regulator to eliminate any problems. Also found that if it starts the first starting cycle, usually will not have any problems with the unit, if it doesn't start the first cycle, it usually will give trouble down the road with just not engine trouble, but electrical also, weird, but that seems to be common. Not really all that bad of a unit though for the money, would not use one though if it is critical that it works everytime. Good for residental though. Dealer support was poor for us too. You can buy one cheaper from the orange box, than you can buy being a dealer too.
