It's not like a car radiator, where some of the coolant can evaporate out over time.The Trane system I had installed at my residence was really slick - the installer put a specified amount of Freon in it by hand, plugged an electric valve on his Freon bottle into the outside A/C unit, and pushed a "fill yourself up" button on the outside A/C unit. 

But there are things such as minor repairs (update a pipe on a radiator etc).As for why more than 6 units a year = simply to have passive income so we can take care of our kids, my parents and leave grandkids with something.

The pipes in the house are relatively old and the house was winterized and thankfully there have been some very minor but fixable leaks, however, the radiators look like water has come out of them I cannot tell if they are in good shape and the technician said the only way to know is when you hook up the boiler.

Cicero rental property owners/investors, Please share your insight on this dealI have 4700 W 20th St Cicero under contract for $245,000- 2 units: 2 bed 1 bath + 11x6 sunroom- 2 units 2 bed 1 bath + small porch- 1 garden unit (studio) -1 central radiator system, Hardwood throughout, Seller is making Cicero repairs. - 1 unit needs new kitchen & new toilet & vanity & 1 wall of drywall.- Windows are oigional with old aluminum storm windows some are broken.4700 W 20th stMarket rate (conservative est) Market ratePainted, StainlessAll rentedcompetitivly priced including basement1st floor Front 2bd 1ba includes front porch9009009001st floor 2bd 1ba with heated sunroom 6'11"x 11'9009009002nd floor 2bd 1ba + front porchKitchen needs floor sanded, cabinets plaster, paintBath needs toilet & vanityPorch needs drainage8758752nt floor 2bed, 1 bath heated sunroom 6'11"x 11'900900900Basement STUDIOEgress windowsdrywall, 1 wall needs fixing500Garage$120$150$150Mortgage 260 for 3 units270 for 4 units280 for 5 units-$1,248-$1,296-$1,344heat (heat & cooking)-350-350-350Tax-$635-$635-$635Water & Garb-300-300-300Insurance-$145-$145-$162ElectenanttenanttenantUnits Rented3 units4 units 5 unitsMonthly Cashflow$142$999$1,434If this were 2016, I know I would be overpaying.

The first floor has central air and forced air heat, while the second floor has steam radiators and no AC.My wife and I plan to live here for many years, and would like to either (1) duplex the first floor unit down into the basement and keep the top floor as a rental unit; or (2) duplex the first floor up into the second floor unit and convert the basement into a rental unit (we believe it could be a 2-3BR, 1.5-2BA unit).  

Should I just throw in four natural gas boilers since the radiator systems are intact?

Although I'm sure those neighborhoods have a great chance of turning around as the "goodness" radiates outward.So, I called the listing agent last night and sure enough, 3 offers on it, ALL OF THEM OVER LIST.Please, for your sake and ours, if you don't know what you're doing keep your money in your pocket.all cash

I get a text Sunday night from a tenant that the radiator pipe is broken (4 days after the cold spell ended).

I work in the cancer field (radiation oncology) and have a 45 minute commute.

There are currently radiators in every room in the house, but the base boiler unit is out of commission.Anybody had any experience with this, or any recommendations or cost projections?