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How many BTU would it take to cool a home down of 4200 square feet with a central air conditioning system?
The only sure way to tell you is to do a heat load calculation on your 4200 ft2 home. Such things as windows, insulation values and other factors effect the size of the unit or units that you would need.
How many BTU's will it take to heat 320 sq ft?
It is a question of cubic feet, not square feet.
How do you find out how much insulation you would need for a shop with 10 foot walls measuring 26 feet by 28 feet built with 2X6 16 inches on center?
Multiply the height of the wall space by the length. This will give you the square footage. Rolls of faced and unfaced insulation are generally sold by square footage. Make sure you take out for windows and doors (especially the overhead garage door).
How many cubit feet of natural gas will it take to heat 100 sq ft?
A cubit = 1.5 feet so a cubit foot = 1.5 square feet, is a measure of area. The amount of natural gas required to heat a space needs a volume measure, a measurement in terms of its area is without any meaning.
How many btu's does it take to heat a basement room 150 square feet?
Standard practice holds that it takes 5000 BTUs to heat a room 100 to 150 sq ft Figure on adding another 1000 BTUs for every 50 or so sq ft added. Hence , 400 to 450 sq ft would need about 10,000 BTUs
What will take in more heat R 5 insulation R 35 insulation?
Well, an R-5 will take in more heat because it is less than 35. Get it? Got it? Good.
Why is it important to insulate buildings?
Buildings take energy to heat them and cool them. No insulation means the heat or cool escapes to the atmosphere and wastes/costs energy (and money).
What is a simple definition of thermal insulation?
Thermal insulation is a material or technique that reduces the transfer of heat between objects of differing temperatures, helping to maintain a consistent temperature inside a space by preventing heat loss or gain.
How does loft insulation stop conduction and convection?
Loft insulation stops conduction and convection as the insulation which is inserted into the wall cavity prevents the particles of heat energy from traveling through the wall cavity, this stops conduction from taking place. Loft insulation also prevents convection as the cavity insulation stops the air particles from moving, therefore they cannot transfer heat and convection cannot take place.
Why do people put insulation in their roofs?
People put insulation in their roofs to regulate the temperature inside their homes. Insulation helps to keep the heat inside during cold weather and prevent it from entering during hot weather, making the home more energy-efficient and comfortable. It also helps to reduce energy costs and environmental impact by decreasing the need for heating and cooling.
How does air insulate?
Air insulates heat transfer as well as (lower voltages of) electricity basically by just being there. Heat takes time to transfer between media. Consider a house's wall cavity without added insulation. There is a layer of drywall on the inside, followed by a layer of air, followed by a layer of wood on the outside. So for heat to travel from the inside to the outside it has to start vibrating the drywall molecules faster first (which is what we do when we heat anything up). Then it has to vibrate the molecules of air faster (and those buggers move around pretty easily). Then it has to vibrate the wood molecules faster, then the siding even. So air is just another layer that has to be passed through. The longer we make the heat take to transfer, the better insulated it is. Now add some fiberglass insulation to your house's wall cavity. Do you know that it is counterproductive to stuff as much insulation in as possible? Know why? Because air helps the insulation pass heat through more slowly! Imagine it... if there are thousands of layers of fiberglass, and air.... it's going to take that poor heat energy a while to vibrate all those molecules. But if you stuff that air space full of insulation.... the 'insulation' starts to behave like a solid chunk of fiberglass, which doesn't insulate as well as thousands of layers of fiberglass and air.
Does it take more heat to heat water or to boil water?
It takes more heat to boil water than to simply heat water. Unless the water is already at its boiling point.
What is the importance of insulation?
By definition, insulation has low thermal conductivity so it slows the transfer of heat. We insulate homes to help them stay warm in the winter (by slowing the rate at which the heat moves out of the house into the colder surroundings) and to keep them cool in the summer (assuming they are air conditioned, by slowing the rate of heat moving through the walls from the hot outside into the cooler inside). Since it requires work to create a temperature difference, insulation allows less work to maintain that difference over time. Insulation also can provide protection against large deviations from ambient temperature. We use insulation in the form of gloves and "hotpads" to allow us to take hot items out of an oven, to cover steam pipes so that people don't get burned on them (and, of course to keep the steam hot and usable), to insulate containers of liquid nitrogen, etc.
How long does ti take to melt a block of ice 3ftx3ftx1ft?
The time to melt a block of ice depends on various factors such as temperature, heat source, and insulation. With a constant heat source, it could take several hours to a few days to melt a block of ice that size. The larger the surface area exposed to the heat source, the quicker the ice will melt.
Does the heat in your car burn gas?
No, the heat in your vehicle is made from the the heat of the radiator fluid. It dose not take more fuel to use the heater.
How can copper be removed from an electric motor?
Take it apart and burn the insulation out, if you can, in a pile of brush. Or you could also take a torch to it and see if that gets the insulation out. If you use flame to melt the copper, beware of toxic fumes from burning rubber and plastic insulation.
Why does a balloon with an aluminium coating take longer to shrink than a rubber balloon?
A balloon with an aluminum coating takes longer to shrink because aluminum is a good insulator of heat, which slows down the transfer of heat from the surrounding air to the balloon. This insulation property helps retain the heat inside the balloon, making it take longer to cool down and shrink compared to a rubber balloon.
