For what it is worth,
As an old Fire Chief and having numerous of the Mac the Fire Guy systems on our coach's this appears to be very positive. However, it has numerous areas that have no answers and that may be due to the infancy into the US. I have never seen Technical Data sheets or UL approved certification that was not tested to US standards being an approved system anywhere in the US, and possibly Canada also.
That said it many be just due to the infancy of its introduction and very well become a much needed system in the future of RVing. (I have read their website twice)
As I have installed pex tubing for an infloor heat system covering the entire floor area of our 2004 Marquis, including the controls under the bed fed from the Aqua Hot boiler up near the passenger captains chair it is going to be best installed during a factory build to get it to all locations in a coach. Particularly with a coach and 4 slides.
As Mac the Fire guy will verify there are no coach manufacturers that do any more than what meets DOT standards. Everything they finally do is based on $$$ per unit and only meeting the minimum standards even though the engineers most always design better systems. Competition in the industry is tantamount for selling units.
Basically it comes down to installation, either on the roof (run lines for a dish mount as many of us has done) or under the chassis (like replacing an a/c line back to the compressor on the engine) as there is no route, conduit, channel that gets you between the front and back of a coach. Now trying to get these sensors at the end of a pex type tube into living areas is the real challenge that leaves a lot to the imagination and disruption to aesthetics and potential functioning of slide mechanisms.
It can be completed, no doubt, but $$$$$ is the range of this task. I can verify that nothing in the RV industry has changed since our 1991 Beaver Contessa and now our 2017 Entegra Cornerstone. There is still no path to run anything, other than over the roof and they now have totally enclosed with a hardened fiberglass coated material the under belly of the entire coach, with exception of the engine compartment, (I am not complaining about this enclosure as it protects the metal framing and compartment steel) but it makes retrofitting really interesting.
The fire service has been trying to get suppression systems into the Residential Building Code for years, homes for single family dwellings. It is getting some jurisdictions to look at but overall not very much is happening in reality and many reasons why it is almost impossible to implement just due to the nature and cost of installation and annual maintenance. The fire service has been very unsuccessful in even getting a homeowner to maintain a smoke detector system, which only relies on changing the batteries and not letting the breaker stay tripped. Until the US takes a different approach your safety is still only in your hands.
