A hot water heater is a separate heater for domestic use, such as showers, washing, laundry, etc. It can be used in conjunction with a boiler but is mandatory with a furnace. In most cases, coverage is not included in the basic service agreement. If coverage is available, it will most likely include maintenance of the burner and component parts, but will not include the replacement of the tank itself. These components do not apply to furnace warm air systems.
Most service agreements cover one zone or thermostat with additional zones at an extra charge.
If coverage is available, it will most likely apply to an identical size and type of unit. Upgrades may be available at a higher price. Given the high replacement cost of these major items, this type of additional coverage, basically a form of loss coverage, may be advisable for many homeowners. It is further recommended that chimneys be cleaned by a professional service from time to time. Which May Not Be Covered in a Service Agreement Service agreements generally do not include parts or labor as a result of conditions such as water damage, fire, flood, freeze-ups, hurricane, power interruptions, fire or water in basement, among other possible conditions.