If one of those water heaters malfunctions and causes a fire, I'm betting Dawn's insurance won't cover the damage either.

One or more professional inspectors should look for defects or malfunctions in the building’s structure, such as the roof, plumbing, or foundation, and detect pest infestations or dry rot and similar damage.

Tenant will notify Landlord in a timely manner of any damages or problems as they arise, including damages caused by Tenant, malfunction of appliances or fixtures, and water/moisture leaks and spots.

For example "if I or one of my family members is injured or killed by a malfunction of one of the appliances in your home, will your insurance cover it?"  

I've spent about $1,500 in average the last two years (0 this year so far) due to a termite infestation and my A/C unit was malfunctioning.

I've handled several condo water losses from sprinkler system malfunctions. 

Our realtor also found a septic inspection report from earlier this year that says the septic was showing signs of malfunctioning.

One or more professional inspectors should look for defects or malfunctions in the building's structure, such as the roof, plumbing, or foundation, and detect pest infestations or dry rot and similar damage.

I don't have STR but if I did what I'd consider is:Do competitors have it and is it the difference between them selecting my unit vs theirsIf the playstation decides to malfunction during their stay are they going to write you a negative review for it or call you asking for one that workWhat if they put one of their own games or a redbox in, it gets damaged, are they going to ask you to reimburse themHow many bad #&@ kids or drunk adults are likely to break this playstation and act like they don't know what happenedCould the money you spend on the playstation and games be spent on something more attractive (larger tv or more TV's)I think that's my long way of saying no. 

After I closed on my new 5-unit property this past december, I had to replace two heaters that were at their end of life and malfunctioning.