The Second Heat Source Needs Its Own Line: Size a Contract to a Home With Backup Equipment

A home that runs two heating or cooling systems needs the contract to name each one, because a term that names only the main unit leaves the backup outside the paper.

Many homes run more than one system for heating or cooling. A heat pump may handle mild weather while a gas furnace takes over in deep cold. A wood stove may be the main source of heat while a furnace stays in place for emergencies. A window unit may cool one bedroom that the central system does not reach. A contract written for the main system alone may leave the backup unit out of the paper entirely, so the first sizing step is to list every unit that actually runs in the house.

What to list

For each unit, write down the make, model, approximate location, and how often it runs in a normal month and in an unusually hot or cold stretch. Then compare that list to the unit names in the contract. Check whether the contract names each unit by its own identifying details or only refers to the home's heating and cooling system as a single item.

What to ask

Ask the seller or administrator these questions in writing. Does the contract count a backup unit as covered equipment, or only as equipment that is in use at the time of a claim? If the household switches between units, does the contract ask which unit was running when the fault appeared? Is the backup unit inspected at enrollment, and does the contract require an inspection before the backup can be added later? If a backup runs only during extreme weather, what service record does the contract expect for it?

What to compare

Set the list of units beside the contract's equipment schedule and mark every unit that is missing, misnamed, or described only in general words. Also compare the contract's maintenance expectations to the backup's real use. A unit that runs rarely may still need its own service schedule, and the contract may say nothing about it.

This edition has not read any contract for a specific product, so the questions above come from how these agreements are usually written, not from a particular paper. The state pages on this site name the regulator and the statute that govern service contracts in each state that the edition has read. Published contract figures are not listed on this site.