Every time you sprint through the halls because you're late for class, score against your opponents during a game, or shoot pool with friends, you're using your bones, muscles, and joints. Without these important body parts, you'd be seriously sidelined â you'd be unable to sit, stand, walk, or do any of the activities you do every day.
2. Determine the total wattage needed for the room. Older homes with less insulation will use about 10 watts to heat each square foot. Newer homes with greater insulation values will only use about 6 watts per square feet. It will take approximately 600 watts to heat a 100 square foot room in a newer home.Older homes will need as much as 1,000 watts for the same room.. Calculate how large the baseboard heater will be. Baseboard heaters use about 250 watts of power for every foot of length. In a 100-square foot room that is part of an older home, the baseboard heater will be approximately 5 feet long. In a newer home, it will be about 3 feet long.
How many BTUs do you need to heat your home? As a rule of thumb, you need between 40 to 45 BTUs to heat one square foot of your home. If your home is 2,000 square feet in size, you need a heating system that generates between 80,000 and 90,000 BTUs.You can use this rule of thumb to get a rough estimate of how much a new heating system will cost. However, it's important to have a heating professional make the final calculation.n HVAC professional uses a more complicated system, like the Manual J Load Calculation, to calculate the number of BTUs your new heating system will need. This system factors in how many windows are in your home, your home's layout, insulation, efficiency, as well as the number of floors you have to heat.