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Is the Btu rating of a pool heater the input Btu of the gas or the transfered Btu going into the water?
input of gas heater The heater has its own BTU rating separate from the gas and the heat transferred. Every heater has an efficiency rating... for instance, a heater can be rated at 92%. This means that for every BTU burn in the heater, 92% of that BTU is transferred in to the water. The main premise behind BTU ratings and pool heating is that most forget the parallel factors involved. How many gallons, and what is the temperature rise? A 200k heater and a 400k heater can both handle, maintain, and work at the same efficiency. The true difference in them is the time it takes to create the rise in temperature. If the pool is 60 degrees, and you want the pool 80 degrees, then you'll need 1 BTU to raise each pound of water 1 degree. The only remaining variable is the quantity of water which will tell you the total weight of the water.
What are the purposes of swimming pool heat pumps?
The purpose of a swimming pool heat pump is to rise the temperature of the water. The pool then can be used for swimming even on days when the weather is not perfect. The swimming pool season is extended.
Why is a 1994 Chrysler Concorde not blowing hot air from the heater?
Low coolant? Thermostat not closing completely allowing engine temperature to rise? Plugged heater core? Temperature blend door malfunction in the HVAC housing.
Is there a formula to calculate the amount of natural gas required for a pool heater to raise the temperature of a swimming pool X degrees?
I have listed below the formula that we use to size pool heaters for our customers. This formula is used for an outdoor swimming pool. 1. Determine your desired water temperature. (75 degrees, 90 degrees, ect.) 2. Determine the average temp for the coldest month that you will be using the pool. Try www.weather.com. They are the best for breaking down the daily average temps by month. 3. Now subtract the average temp from the coldest month from the desired temperature of the water. (Subtract answer #2 from answer #1). This will give you the "temperature rise" needed. 4. You will need to calculate the swimming pool's surface area. (Length x Width) 5. Here is the tricky part: You will use the following formula to calculate the output of the heater. Pool surface Area x Temperature Rise x 12 (multiply answer to #4 by answer to #3.) This formula takes into consideration how much the temperature will rise per hour , what the average wind speed is at the pools surface. I would recommend calculating the formula yourself and then contacting a trained pool professional for accuracy. This formula is basic, but many other factors may be involved in your swimming pool that should be considered. I have had great service from Hayward and Jandy (Teledyne Laars) products. You can also call either manufacturer and they can recommend a pool professional in your area. Good Luck to you!!!
What is the temperature rise of 250 cfm of air if an electric heater adds 8500 btus to the air?
31.48 deg F
What temperature must it be outside for a balloon to float?
Outside temperature is largely immaterial. It is really the difference between the temperature inside and outside of the balloon envelope that generates the lift. If both are exactly the same, then the balloon will simply fall under gravity -- it has no buoyancy. As the inside temperature increases, so does its buoyancy. Eventually, the difference will be sufficient to overcome gravity, and the greater the difference, the faster it will rise. When the optimum altitude is achieved, the air inside is allowed to cool to an optimum level to maintain that altitude; the optimum temperature will vary according to the outside temperature and the weight of the balloon. The outside temperature will vary according to altitude, as will air pressure outside of the balloon, therefore there is no single answer to the question. It is the difference in temperature that is important, not the actual temperature.
Blowing cold air 2001 Montana?
Low coolant? Thermostat not closing allowing engine temperature to rise? Plugged heater core? Air bound heater core? Water pump not circulating coolant?
3 factors that influence enzyme activity?
The three main factors that affect enjyme activity are:- a)Temperature:Enzymes generally function properly at a narrow rangr of temperature and shows its highest activity t a particular temperature called its optimum temperature. b)pH:-as temperature pH also has a particular value ,in which the enzymes are most active,called the optimum temperature. c)Concentration of substrate;-with the increase in substrate concentration,the velocity of the enzymatic reaction also increases,till a maximum velocitywhich does not rise any further with the rise in substrate concentration.
How do you determine the operating costs for an above ground gas pool heater?
Your gas pool heater should have a BTU/hr rating for input and output printed on a placard somewhere on the heater. Look for the input rating and divide by 100,000 to get Therms/hr. Assuming your gas is being billed in dollars per Therm, just multiply that rate by your Therms/hr. to get dollars/hour. Multiply this by how many hours you run your gas heater and that's your total pool heater operating cost. Also take in account the time of year temp and wind. If your heating your pool to 78-85 degrees and your pool water is 60 degrees that would be an 18-25 degree temp rise. Your pool is exposed on all sides and this will bleed heat off quickly. It may never achieve the temp desired or not shut down and always call for heat.
No heat in 1990 Chevy Camaro?
Low coolant? Thermostat not closing allowing engine temperature to rise? Plugged heater core? Air bound heater core? Water pump not circulating coolant? Heater control cable not adjusted properly? Bad selector switch?
Does the temperature rise or drop in the exosphere?
rise
How would you explain the temperature rise in the water?
The temperature rise because of the gangnam dance
