Tempo:
the heating or cooling requirements of the rooms and the number of ducts running to each room. Plan the framing to allow the supply ducts to be easily run through joist spaces and partition walls in as direct a path as possible between the furnace trunk duct and the rooms served. This will help ensure that proper airflows are achieved. Supply registers are usually located in the floor under windows or along outside walls to help counter heat losses where they occur. Blocking may be required to support the edges of the floor opening around a register. High-velocity, forced-air systems that use small diameter flexible duct to deliver air from the furnace to each room are available. The smaller diameter ducts can be run more easily through wall and floor framing with less cutting and blocking. Other framing provisions are similar to conventional forced air systems. Although it is always preferable to run supply and return air ducting within the building envelope, any ducts and plenums forming part of a heating, ventilating or air conditioning system that are located outside the building envelope must be sealed and insulated to the same level required for exterior walls.
Electric Baseboard Heating Systems Electric baseboard heating systems are common in some provinces and territories. They are installed at the wall-floor intersection in all rooms, typically under windows. Most rooms have thermostats located on interior walls to control the baseboard. As baseboards are connected to the electrical system by conventional wiring, there are few implications for wood frame construction. It may be necessary to ensure there are an adequate number of studs in the walls behind a baseboard to allow it to be firmly connected to the wall—otherwise additional blocking may be required.
Hot Water Space Heating Systems Whether or not the hot water system is an in-floor radiant heating system, baseboard convectors or radiators, the supply and return piping is relatively small so preplanning the structural framing layout to accommodate the pipes is not usually necessary. Similar to electric baseboards, hydronic baseboard convectors are usually located under windows along outside walls so that warm air reaches the outside walls. Baseboard convectors are positioned on the surface of the wall, and studs or joists need not be cut to install them. An adequate number of studs or blocking should be present in the wall behind the convector so that it can be securely fastened to the wall. In-floor radiant heating systems consist of tubing that is either secured to the underside of the subfloor or embedded in a thin layer of lightweight concrete poured over the floor. Specialized subflooring is available in which the tubing can be run to eliminate the need for concrete topping. Service water heaters, boilers and storage tanks serving hydronic heating systems must be insulated. The supply and return pipes connected to the heater or storage tank must also be insulated. Service water heating systems with storage tanks must also be equipped with automatic temperature controls that can be adjusted between the lowest and the highest acceptable temperature settings for the intended use.
Space Heating System Control Space heating systems must be controlled by at least one thermostatic control that responds to the temperature within the heated space. Except for manually fuelled, solid fuel-fired appliances, the thermostat must be capable of controlling the temperature within 1°C. Where heating and cooling are controlled by
Electric Baseboard Heating Systems Electric baseboard heating systems are common in some provinces and territories. They are installed at the wall-floor intersection in all rooms, typically under windows. Most rooms have thermostats located on interior walls to control the baseboard. As baseboards are connected to the electrical system by conventional wiring, there are few implications for wood frame construction. It may be necessary to ensure there are an adequate number of studs in the walls behind a baseboard to allow it to be firmly connected to the wall—otherwise additional blocking may be required.
Hot Water Space Heating Systems Whether or not the hot water system is an in-floor radiant heating system, baseboard convectors or radiators, the supply and return piping is relatively small so preplanning the structural framing layout to accommodate the pipes is not usually necessary. Similar to electric baseboards, hydronic baseboard convectors are usually located under windows along outside walls so that warm air reaches the outside walls. Baseboard convectors are positioned on the surface of the wall, and studs or joists need not be cut to install them. An adequate number of studs or blocking should be present in the wall behind the convector so that it can be securely fastened to the wall. In-floor radiant heating systems consist of tubing that is either secured to the underside of the subfloor or embedded in a thin layer of lightweight concrete poured over the floor. Specialized subflooring is available in which the tubing can be run to eliminate the need for concrete topping. Service water heaters, boilers and storage tanks serving hydronic heating systems must be insulated. The supply and return pipes connected to the heater or storage tank must also be insulated. Service water heating systems with storage tanks must also be equipped with automatic temperature controls that can be adjusted between the lowest and the highest acceptable temperature settings for the intended use.
Space Heating System Control Space heating systems must be controlled by at least one thermostatic control that responds to the temperature within the heated space. Except for manually fuelled, solid fuel-fired appliances, the thermostat must be capable of controlling the temperature within 1°C. Where heating and cooling are controlled by
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