Heats all 4 unitsOwner pays gas for heating in all 4 units (There are 4 individual meters in the house for stoves, and 1 house meter for heat and dryer)Generates heat by creating steam that ciruclates in radiators in all unitsTenants have no control, it is regulated by a thermocouple outside the houseGet a Structural Assessment Termite Treatment Evidence of termite treatment in the past (dug out tunnels)Evidence of new tunnels, though they are likely inactive due to cold.Fire Damage in back corner of basement, everything is replaced but some joists in opposite corner so beyond surface damage (he recommended I get records of the work done)Cracks inside and outside on second floorRoof- recommends consulting a roof contractor Overall good Damage over the entry wayGet Main sewage pipes scoped.

You have a 3 bedroom semidetached rowhome and want to rip the existing radiator/boiler+oil tank out, put brand new duct every where including now finished basement with brand new 90k out gas furnace and caged in 2.5 ton condensor.

We keep things clean, but sure don't scrub the floor UNDER the baseboard radiators with a toothbrush-sized brush, like she did.

I'm a mechanic by trade and we have a similar "quick fix" type product in our industry called radiator/heater core stop leak.

The building has no insulation, has single pane windows has a gas powered water radiator heater system and has older fuse electrical system. 

I don't have radiators or air conditioning...IndoorSmoke detector batteriesHVAC filtersFireplace sweep-outCheck toilet seat / seal tightnessDust / clean fridge coilsLint from dryer exhaust ventFlush water heaterCheck the fire extinguisher (expiration date)Check and redo grout / calking in showers / bathrooms.Quick flush shower heads and check faucet filters for hard water buildupTighten up loose nobs and handlesOutdoor / UnderClean guttersSiding & roofing eyeballCheck sump pumpLint from dryer exhaust ventTest garage door auto-reverse featureCheck window screensFix any earth to wood contact (damn you termites)Check trees for power line interference (PG&E will actually fix it for free if you call them)Annual trim up / sprinkler inspection & repairs.

I have 5 active radiator steamers.

Ended up being all new plumbing, broken radiators, all new windows, etc on top of the initial thoughts.

:lol: This property also has steam radiator heat.

Hi @Junbin Teng  -  the home is currently running on forced steam radiators, so there are no vents.