Similar to window and portable, it is blowing air in just one location.Of all the AC types, central air is most desirable because it circulates air better.

Water circulating correctly.Feb 1 - Tenant informs me that it wasn't warm last night.

This will lead to hot and cold areas in the house unless you add additional circulation e.g ceiling fans.

Possible the vacant unit not circulating any water caused the pipe to freeze. 

Signer can be Circulator (witness for self and others).

It's exactly what happened in 2018 in that cashflow market.In Orlando, it occured started from 2015.In San Francisco, the rebout occured from 2012-2013.I think the appreciation is here to stay because the circulation of dollar printing is almost half compared to previous years ago.

It was very inspiring I had to circulate it. 

There's a few design guidelines, but basically you just use a bronze circulator, TACO makes one with built in thermostat circuit, and pipe some baseboard in the unit with it's own thermostat.

I would also submit that the excess dollars can be taken out of circulation via The Mandrake Mechanism and other monetary policy can be tuned to provide the proper amount of currency stability.

That should cover the cost of the new boiler, circulator, expansion tank, pressure reducing valve, necessary piping and labor for a complete install.