We have a very similar system in our MH, and it is simple/easy to use. I doubt it would be so for a house, unless one plans to pump the water heater full while filling the water lines. We leave the heat set to 50*F while we are away in cold weather. It keeps moisture from settling into the house and causing a mildew smell upon our return too.
Ask your insurance agent, an unheated house deteriorates much faster than a heated house.
2000 Winnebago Ultimate Freedom USQ40JD,
ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA." My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy