Do you have room for AC condensers?

. - Install two new high efficiency condensing boilers, and update windows and insulation for better heat loss performance.PROS - a) minimally invasive; b) can provide 15-30% reduction in heating costs (we are told).CONS - a)total gas expense is still paid by the landlord; b) individual units won't have individual control (except for a thermostat controlled shutoff valve for heat/water in each unit); c) AC would be available on with in wall/window units. 2) Try to individually meter each units' gas and provide each with a traditional forced air heating/cooling system.PROS: a)gas expense could be completely removed for landlord (huge)- even tankless hot water could be installed in each unit; b) each unit would have their own climate control.CONS: a) constructions costs of running new gas lines and soffiting sheet metal duct work. b) highly invasive with collateral construction costs; c) future costs of maintenance on multiple systems vs a single building-wide system. 3) An electric based heating system- This is tricky in my mind because of the high cost of electric heat.

It happens because you get condensation on the sheathing especially when the roof is cold.

Even double pane windows with argon gas will show signs of condensation and/or frost if it is cold enough outside and the humidity indoors is high.

HVAC System:The HVAC systems consists of 3 components – 2 furnaces (manufactured in 1994 & 1994), 2 AC evaporator coils (manufactured in 2015 & estimated in 2001) and 2 AC condenser fans (manufactured in 1995 & 2001).The 1st floor furnace is not operational and 2nd floor AC is not operational.

Humid, warm air inside the unit condensates against exterior walls or windows where it's colder.

So if you did a heat loss and installed a basic cast iron boiler that was sized properly you could probably see a 10-30% fuel savings easily with just a new regular non-condensing cast iron boiler.  

It tends to show up more in the winter months when moisture inside the home condensates around windows or exterior walls. 

You’ll see more condensed urban housing along that corridor soon.

Furnace ac coil outside condenser water heater copper everything replaced it all put it on the market cane time to show it to the crackhead tenant yes I do say crackhead tenant sec 8 and came into the house everything was missing again even though I was there the day before and yes I said day because I won’t go there at night.. it’s not the tenants it’s the HOOD go to north county castle point if you want to make money walnut park is a cesspool