This article explores the new macro designer and other new macro features available in Access 2010. After reading this article, you will be able to take full advantage of what Access 2010 macros have to offer.
Rules For Sizing Your Heat Pump Pool Heater. 1  Size at 4 BTUâs per gallon or 1 BTU per litre of water. To heat in normal summer conditions when ambient air temperature average 70Â°F in a 24 hour period.  Size at 5 BTUâs per gallon or 1.3 to 1.5 BTUâs per litre of water.
In principle it is easy to know how much heat you need to put in to your swimming pool to heat it up and therefore easy to work out the cost. We have units of measurement for how many kilowatthours (kwh) of energy it takes to raise the temperature of fixed volume of swimming pool water.or example a small 8,000 litre pool like a 12ft splasher pool will need about 150 kw of energy to raise the temperature from 10 deg C (tap water) to 25 deg C (swimming pool water). With electricity at 15p per kw/hr then it will cost Â£22.50. Simple.