So far as I can tell the only difference is one is dual fuel and one is tri-fuel. The 'T' model is $700 more but it looks like a conversion kit can be had for $130 to make the XH accept natural gas. So why so much more for the stock tri-fuel model? What am I missing?
I suppose more importantly is if this is the right option to run off of natural gas and provide enough to run the whole house. Estimating my power needs has been a bit confusing but if it helps I'm after something that will run the whole house off of natural gas. We're willing to forgo using the electric range if need be but otherwise its a 1500 sq ft house w/ a 2.5 ton central AC, gas furnace, gas water heater, Fridge, Deep Freezer, TV, higher end PC, laptop and a few other smaller items. The location would be very near the room where I work from home and have regular calls so noise is a concern but secondary to making sure it meets our other needs.
Im just starting my research so if it's not quite so straight forward any suggestions or even links to helpful articles is appreciated. So many out there that are overly general it doesnt seem to be of much help.