The heat exchangers fail most frequently on the propane boilers due to the high acidity, low temperatures the propane condensing units run at, my friend who owns a 3rd Generation heating/plumbing company doubts those units will ever come close to outlasting a traditional 3 pass boiler.Agree the pros of having a propane boiler/furnace-fuel is cleaner, services tend to be cheaper, tanks can be bought or fuel company can supply tank, work great if you also have a tankless hot water heater with same fuel source.Efficiency of Maine does offer rebates as well for the high efficiency units, they don't mention this but, if you insulate all baseboard piping that is exposed in the basement, take photos and have a high efficiency oil boiler they will qualify as the same rebate as the propane unit.

Why you should stop looking for a "investor friendly" RE agent

I am in the process of working with a friend that will be a hard money lender. 

If it was me, this is where I would go start talking very seriously with a couple friends that had expressed an interest owning real estate. 

I flip and my friends who are REI also seeing shrinking profit margins not only due to rising material and labor costs but also the loss of multiple bids.However, with any market there are locations still commanding high dollar.

I have a friend that owns a vending machine business and in a lot of cases the businesses don't get a cut of profits, but the businesses want the machine there so it will be there for customers, and the vending company supplies the machine, keeps it stocked, and maintained and keeps all the profits.

I will put down her name as well and also make her get hand cramps by signing/writing :P I'd love to get in touch with your friend.

Send me a private message if you want to discuss that.A friend who is a realtor mentioned the same thing as well.

I feel for you guys in more tenant friendly states.

Pa is neither a tenant nor landlord friendly state .