| Hot Water Heating This system heats water in a "boiler' which is then delivered through baseboard, cast iron radiators, convectors, toe kick heaters or radiant tubing systems. This system can NOT include central air conditioning. |
| Steam Heating This system heats water and creates steam. This is done in a "steam boiler" and is then delivered to cast iron steam radiators . This system can NOT include central air conditioning. |
| Warm Air Furnaces This system heats up a steel box where a fan then blows air over the box. The cool air picks up the heat from the heated box, is distributed throughout the ductwork and then into the building. This system may also include central air conditioning. |
| Hydro-Air This system uses a combination of water and air. A boiler heats water and sends the water through a coil located in a blower unit. This blower unit forces cool air through the warm coil and disperses the now warm air through ductwork and into the building. This system may also include central air conditionintg. |
| D & S Comfort Control Affordable Heating & A/C Serving Central and Eastern Connecticut |
| Any of these systems may use Oil, Propane or Natural gas |