It's a differnt brand, but that's what my parents have. At ages 91 and 87, they need a system as automated as possible. It's hooked to the natural gas line but can be modified for propane if needed.
Installation may require a pro as you may have to disconnect from the grid.

__________________
Charles
1983 300D, bought new, 215k+ miles, donated to Purple Hearts veterans charity but I have parts for sale: http://www.peachparts.com/shopforum/mercedes-benz-cars-sale/296386-fs-1-owner-83-mb-300d-turbo-rebuild-parts.html