The house has natural gas lines running to the gas furnace, the kitchen and the laundry room. 

Hey everyone,I've found a potential property investing in through craigslist and I had a few questions regarding it.Here are the details:Triplex fully rented: ASKING $479,000 - 3 Bed 2 Full Bath (rents for $1200) - 2 Bed 2 Full Bath (rents for $950) - 2 Bed 2 Full Bath (rents for $950)They say that the tenant pays for cable, electric, gas/propane and the landlord pays for insurance, mortgage, property tax, and trash.

Although, workers told me that he was always checking what they were doing and wasn't happy that the outside camera got covered, even though it was for the time to apply the paint and then it was removed.He reported the fridge was dead and also figured that a smell of sewer gas in the MB is due to a P-trap that was not installed when the sinks were changed.

The numbers look good:Location: Broadway HouseNumber of Units: 1Rent: $1,350.00 Square Feet: 1,666 Upfront Costs:Cost per Unit $95,000.00 Price: $80,000.00 Cost per Square Foot: $57.02 Cap Improvements & Repairs: $15,000.00Cash on Cash Return:19.84%Total: $95,000.00 Debt Coverage: [minimum 1.6] 1.78 20%Down: $19,000.00Capitalization Rate (ROI)9.05%Current Assessed Value: $29,666.00 Loan Amount: $76,000.00 Net Cash Flow per month: $314.08 Interest: 4.88%Net Cash Flow per month per unit: $314.08 Term (yrs): 30Total Rent/Month: $1,350 GROSS SCHEDULED RENTAL INCOME: $16,200.00 Less: Total Annual Debt Service: $(4,826.40)Less: Operating Expenses: $(6,470.63)Less: Vacancy and Credit Losses (7%): $(1,134.00)NET CASH FLOW: 3,769 NET OPERATING INCOME - (NOI): 8,595 INTEREST: 3,680 DEPRECIATION: 3,455 NET INCOME: 1,461 Property Insurance: $1,000.00 Property Management (10%): $1,620.00 Placement Fee(30%): $405.00 Real Estate Taxes (5.06179%) $1,501.63 Repairs and Maintenance (12%) $1,944.00 Services: Snow Removal: 720 Utilities: Electricity: N/A Gas and Oil: N/A Sewer and Water: $30.00/mo Other

Should save you quite a bit on gas over the years. 

I have 2 stacked units in a 2 family student rental ( 8 beds ) on one hand i wish i did not get them because i have been having to reset the machines ( have to have someone look at that) so in that sense i wish i didn't have them because of this maintenance, but if the Students lived in a dorm they would have to pay to do laundry and the local laundry mats are twice what i charge, it's more for convenience for them. the money i do get helps pay for the gas, water and the electric that the machines use as @Dale Stevens mentioned. i do not make money on them, but helps with the cost when the rental market is so competitive for student housing where this is.

Did they stress out over not having enough by spending an extra few minutes to depower the entire home before leaving or drive an extra ten minutes to save $0.08 per gallon of gas?

Roof still have 10-15 years left, new gas furnace, new ac unit central air.

It currently has heat only( original 50s gas furnace).

And if you do bang on 5,000 doors you're probably going to spend a chunk of money in gas.