I would follow the instructions as per the Ozone equipment you purchased.

My purchase agreement includes all materials and equipment on-site related to the maintenance of the property.  

This states the home has been approved and available to be a rental.And some of these must be applied for every time a tenant moves.So check your state laws.There are Landlord Tenant Laws, Building Codes, and laws that are not laws at all but based on a Judge’s opinion of whether or not a tenant did wrong or not.For instance, normal wear and tear.Judges have various opinions on what they deem normal wear and tear.This is an Industry of thinking skills.This is an industry of holding your temper and implementing your lease agreement no matter what.You need to think like a Judge.You need to think reasonably.You need to be a good listener.You need to be in control.Once you buy a house you need to know how to keep that house and how to keep your tenants long term.You need to know how to be all things in order to keep your tenants happy, yet make them know the rules of landlording and how to be good tenants.I always say that one is only as good as the tools they have.You could be the greatest landlord in the world in mind and action, but if you don’t have the equipment, or the education, or the money to invest in the proper tools to make you successful, then you will never make it in this business.It takes my breath away to read the stuff on here by new investors.And I understand that how can they know what they do not know?

The front porch on house B is then looking at the back side of house A (with all it's mechanical equipment, trash cans, etc.)

In our business, white goods are just another asset - for tax purposes, they would have a different classification {for depreciation} than other types of equipment, but in essence they are no different than our maintenance tools, vehicles, or computer systems. 

But I do have to wonder about garden equipment being stolen at the end of the normal growing season.

So electric makes more sense from the equipment supply and demand perspective. 

I could do it better with my equipment, but most people don't have the money or time to go that way.

Marcia: Our lease lists tampering with smoke detectors, carbon monoxide detectors or fire suppression equipment as a fine of up to $250 or immediate termination of the lease at the landlords discretion.We do this to drive home the fact we do not take this matter lightly.

- Are homes that are solar equipped selling quicker or is it seen as a liability that home buyers don't want to bother with?