Cool, they finally came out with a inverted driven scroll on water cooled systems.
Sorry, off topic a little, but I have to point this out. Love marketing guys... http://www.waterfurnace.com/literatu...s/BR2700AN.pdf read page 4.
Ordinary furnaces return less than 98¢ of heat for
each dollar spent burning polluting fossil fuels,
while a geothermal system returns up to five
dollars of heat for each dollar spent on electricity.
That’s because our units don’t create heat through
combustion. They simply collect and move it
It ignores the fact that 3/4 of the eletricity on the US grid comes from fossil fuels, and that a furnace in 98% efficient, while a coal boiler on the grid is around 40% efficient at delivering electricity.
Vary misleading, since $1 of electricity provides around 20-40% of the heat (with a COP of 1) to start with as a $1 of natural gas.