A contract's item list is written with some assumed home in mind. A household whose hookups differ from that assumption has to check whether the list fits the equipment it actually runs, because a list written for a standard home may leave out what the household depends on. This guide is a method for building that check. It does not say what any contract covers, and it has not read any contract.
Start with a list of the hookups. Write one line for each of the following: the main fuel for heating, cooking, and water heating; the water source, whether a public main or a private well, along with any pump and pressure tank that goes with it; the sewage path, whether a public line or a septic tank and field; and the power source, whether a utility line, a propane-fed generator, a battery and solar array, or a combination. Record the make and model plate where you have one. Put the list on paper before you open any term.
Next, match each line to the contract's item list. Look for the item names, not only the broad categories. A well pump, a septic pump, a propane regulator, a generator transfer switch, and an inverter may each be named separately, folded into a general category, or left out altogether. Mark each line as named, folded into a category, not mentioned, or unclear. Ask the seller to state in writing where each unclear line falls.
Then check the fuel and power terms. Some contracts describe the covered systems by the fuel they run on or by the utility that supplies them. Check whether a propane tank, its gauge, or its fuel line is treated as part of the covered system or as outside it. Check whether a standby generator must be serviced on a stated schedule, or by a particular kind of service person, to keep the terms in force. Copy any such condition onto your upkeep calendar.
Check the environment terms too. Some contracts set conditions about the space around a unit, its ventilation, or the conditions it is kept in. Propane appliances, generators, and well pressure tanks may carry their own clearance rules from the maker. Put the maker's rule and the contract's rule side by side, keep both on file, and ask the seller which one the contract applies where the two differ.
Re-read the list whenever a hookup changes: a new propane supplier, a new well pump, a battery added to a generator, or a septic system replaced with a different design. A change in hookup can move a unit from named to unnamed without anyone updating the paper.
Keep the finished list with the signed contract. The state page for your state names the statute or program for service contracts and says whether the state publishes a roster. A name on a roster is not a quality rating, and the state page does not judge the terms.