Hydro air technology combines the best of hot water and hot air heating. Heat is generated by a boiler but distributed as heated air. The heated water is piped through an air handler where the heat is transferred from hot water coils to the air, which is then distributed to rooms through ductwork. If a central air conditioning system is integrated, the ducts perform double duty for heating in the winter and cooling in the summer. Dominick's Combo Air Conditioning/Hydro-Air Add-On Plan covers all the parts listed under the Air Conditioning Service Plan, plus labor for this type of system.

This add-on plan includes a comprehensive maintenance check for both your oil-fired furnace and air conditioner when combined with a primary heating plan or extended protection heating plan, plus one year's protection from costly furnace or A/C repairs. Dominick's Combo Air Conditioning/Furnace Add-On Plan covers all the parts listed under the Air Conditioning Service Plan plus labor for this type of system.